The New Browser-Based Hazardous Materials Management System
GeSi4 integrates safety data sheets, hazardous substance inventories, risk assessments, operating instructions, and hazardous substance portals into a seamless, browser-based workflow.
- Manage Hazardous Substances via a Web Browser
- Digitally Process Safety Data Sheets with SDBcheck®
- Keep track of materials, locations, and quantities all in one place
- Creating Risk Assessments and Operating Instructions in a Structured Manner
- Use GeSi4 as a SaaS or on-premises solution
What is GeSi4 GefStoff-Profi?
GeSi4 GefStoff-Profi is the new generation of browser-based software from GeSi Software for professional hazardous substance management. It is available as SaaS and on-premises and is being gradually expanded through Early Access.
The software supports a structured workflow, ranging from safety data sheets and hazardous substance inventories to risk assessments, operating instructions, and hazardous substance portals.
The Most Important Thing
- A New Generation of Browser-Based Software
- Available as SaaS and on-premises
- Early Access Available
- Priority Support included
- Try it free for 2 weeks
GeSi4 GefStoff-Profi in Practice
Get a first look at how GeSi4 GefStoff-Profi is structured and how key work areas are presented in the new generation of browser-based software. The slider provides a concise overview of selected key features, such as safety data sheet processing, the hazardous substances inventory, hazardous substance risk assessment, and operating instructions.
Smart Dashboard
Your central gateway to GeSi4
Open GeSi4 and see right away where you stand. The dashboard shows you the status of your hazardous materials management, recently edited documents, and important queries at a glance. This helps you get back to your current tasks more quickly and keep track of key information.
SDBcheck®
Read Safety Data Sheets Instead of Typing Them Out
Upload your PDF safety data sheet. SDBcheck® automatically extracts the relevant data and transfers it to GeSi4. You can then review and confirm the information before using it as the basis for your hazardous substance management.
Safety Data Sheet Management
Manage MSDSs centrally and keep them up to date
GeSi4 centrally manages your safety data sheets with version control and custom review intervals. If a safety data sheet is out of date, you can request a new version directly from the supplier. In addition, changes are highlighted in the version comparison, ensuring that updates remain traceable.
List of hazardous substances
Systematically Record Hazardous Substances
Your hazardous substance data is imported into a central hazardous substance registry. There, you assign substances to the appropriate workstations and storage locations, enter quantities, and keep track of what is being used or stored where. This creates a clear foundation for your company’s hazardous substance management.
Smart Queries
Filter specifically and analyze results faster
With smart queries, you can analyze hazardous substance data in a targeted manner. For example, you can more quickly identify CMR substances, substances relevant to maternal protection, or hazardous substances that pose a fire or explosion risk. You can also save important queries as favorites and access them directly from the dashboard.
Hazardous substance risk assessment
Assess Hazards in a Transparent Manner
GeSi4 guides you step by step through the hazard assessment for hazardous substances based on the STOP principle and the EMKG. In the process, you examine substitution options, evaluate hazards, and determine appropriate protective measures. The results can then be documented in a transparent manner and incorporated into the operating instructions.
Operating instructions
Automatically Generate Operating Instructions
GeSi4 automatically generates operating instructions from existing hazardous substance data and risk assessments. You can then review and edit the content in the editor and customize it using templates that already specify the layout, design, and certain content. Standard and consolidated operating instructions, as well as AI-powered translation into over 34 languages, are already on the roadmap and will also be part of the feature set.
Hazardous Materials Portals
Provide targeted information
With hazardous materials portals, you can provide relevant information in a targeted manner—for example, to employees or authorized customers. You decide which workstations, storage locations, and content are visible. This gives authorized individuals quick access to safety data sheets, operating instructions, and risk assessments without accidentally altering the content.
User Management
Clearly Control Access
With user management, you can assign roles and access rights that align with your company's structure. You can specify who is allowed to view content and who is allowed to edit it. This ensures that responsibilities are clearly defined and sensitive areas are protected.
GeSi4 GefStoff-Profi
GeSi4 GefStoff-Profi is the new generation of software from GeSi for companies that want to manage hazardous substances digitally, in a structured manner, and via a web browser. Safety data sheets form the central database: They are used to generate hazardous substance inventories, risk assessments, and operating instructions, all the way through to the provision of relevant information via hazardous substance portals.
The application was developed from the ground up and combines the technical expertise from GeSi³ with a new browser-based architecture. GeSi4 is available as both a SaaS and an on-premises solution and continues to evolve step by step during the Early Access phase.
GeSi4 was developed from the ground up as browser-based expert software. You'll work in a new user interface and can use GeSi4 as either a SaaS or on-premises solution, depending on your needs.
It works in a browser, regardless of the device you're using—whether you're in the office, working from home, or on the go. There's no need for a local installation on individual workstations. GerSi4 can be deployed as a SaaS solution or run on your own IT infrastructure.
GeSi4 consolidates the data from your safety data sheet, the hazardous substances inventory, and the risk assessment into a single workflow and automatically generates operating instructions for you based on that information.
Existing substance data, activities, exposures, and protective measures form a common thread for your hazardous substance management. You avoid duplicate data entry, reduce data inconsistencies, and can create operating instructions that are more closely aligned with the actual work process.
GeSi4 helps you systematically map hazardous substances, locations, quantities, risk assessments, and operating instructions in a single application and document them in a manner that meets audit requirements.
Information on hazardous substances is not only documented in a legally compliant manner, but is also made available where it is needed. Through hazardous substance portals, employees can view relevant safety data sheets, operating instructions, and other information specific to their location.
From safety data sheets to operating instructions
With GeSi4, you can manage hazardous substance data step by step: Safety data sheets are processed digitally, relevant information is transferred to the hazardous substances inventory, and then supplemented with activities, exposures, and protective measures in the hazardous substances risk assessment.
This creates a consistent framework for your hazardous substance management. Substance data, activities, exposures, and protective measures are not maintained separately in Excel spreadsheets and individual documents, but are systematically consolidated in GeSi4 and carried through to the operational instructions.
Experience GeSi4 live
Experience GeSi4 Early Access Live
- Live Preview of the Software
- Overview of Key Workflows
- Regular appointments with our experts
- Time for Your Questions
→ Can’t find a date that works for you? Fill out the form with no obligation. We’d be happy to offer you a personalized online presentation afterward.
Try GeSi4 for yourself
- Request a trial account for GeSi4
- Try it for two weeks
- Review Your Own Use Cases
- Work Together to Clarify the Starting Point and Next Steps
→ Not sure if GeSi4 is right for you? We’d be happy to advise you beforehand and support you during the trial period.
Diploma in Mathematics, Managing Director of GeSi Software
Planned Features of GeSi4 GefStoff-Profi
GeSi4 GefStoff-Profi is being expanded step by step through Early Access into a comprehensive browser-based software solution for professional hazardous substance management. The following overview highlights key features and functional areas that have already been implemented or are planned for release by Q2 2027 according to the current roadmap.
Additional features will be added as development progresses. The specific availability of individual features may vary depending on the stage of development. For a timeline of the next development steps, see the roadmap.
SDBcheck® Import
With SDBcheck® , you can import, verify, and directly transfer safety data sheets to GeSi4. This creates a structured database for your hazardous substances inventory without requiring you to manually enter the information into GeSi4.
Validation of Your Suppliers' Safety Data Sheets
SDBcheck® checks extracted safety data sheets for plausibility. The information is processed using an algorithm developed by GeSi, along with an additional AI extraction feature, and can then be reviewed by subject matter experts.
Safety Data Sheet Management
GeSi4 supports the structured management of safety data sheets as a central database for hazardous substance management. This allows you to keep track of relevant SDS information and use it for subsequent steps.
Checking the Validity of Your Safety Data Sheets
You can specifically check safety data sheets to ensure they are up to date. This allows you to identify outdated documents more quickly and request and process new versions in a more organized manner.
Compare Safety Data Sheet Versions
The version comparison feature allows you to compare different versions of a safety data sheet. This makes changes easier to track and enables them to be reviewed specifically for use in further documentation.
Manage Ingredients
Ingredients are presented in a structured format and made available for further processing. This includes information relevant to classifications, assessments, hazard evaluations, and analyses.
List of hazardous substances
The Hazardous Substances Directory allows you to manage the hazardous substances you use in a centralized and traceable manner. Instead of maintaining substance data, areas of use, and quantities in Excel spreadsheets, you can organize this information in a structured way within GeSi4.
Operational Structure, Locations, and Quantities
GeSi4 digitally maps your organizational structure. Hazardous materials can be assigned to locations, areas, workstations, or storage locations, and supplemented with relevant consumption and inventory quantities.
Consolidation Overview
The combined inventory overview helps you review relevant inventory information.
Operational Areas According to the Hazardous Incident Regulation
Relevant substance and quantity data can be used for assessments under the Hazardous Incident Ordinance.
Risk Levels According to AwSV
Information on substances hazardous to water can be presented and analyzed in a more structured manner.
Hazardous substance labels
Hazard labels can be created based on existing hazard data.
Hazard Assessment for Hazardous Substances Using EMKG
In GeSi4, substance data, activities, exposures, and protective measures are consolidated in the hazardous substance risk assessment. The Simple Measures Concept for Hazardous Substances helps users systematically classify hazards and determine appropriate protective measures.
Hazardous Substance Comparison and Substitution
Hazardous substances can be compared more effectively, and potential substitutes can be evaluated in a more structured manner. This supports a technical examination of substitution and alternative substances.
The STOP Principle and Protective Measures
GeSi4 supports a structured approach to implementing safety measures. The STOP principle helps ensure that technical, organizational, and personnel-related measures are incorporated into the risk assessment in a transparent manner.
Automate the creation and editing of operating instructions
GeSi4 supports the automated creation of operating instructions based on existing hazardous substance data and risk assessments. This allows operating instructions to be tailored more closely to specific tasks, exposure, and protective measures. Using the operating instructions editor, the content can then be easily reviewed, edited, and customized.
Group Operating Instructions
Multiple substances or similar activities can be combined into group operating instructions. This simplifies maintenance and makes the provision of operating instructions more organized.
Operating Instructions Editor and Templates
Operating instructions can be created, customized, and updated using an editor and appropriate templates. This allows content to be edited in a more structured manner and presented in a more consistent way.
Multilingual Operating Instructions
Operating instructions can be displayed in multiple languages. This supports companies where employees at different locations or with different language needs access information.
Dashboard
The dashboard consolidates key entry points and overviews in GeSi4. It helps users access relevant sections more quickly and maintain an overview of key hazardous substance information.
Queries and Analyses
Data on hazardous substances can be filtered and analyzed in a targeted manner. This allows information to be viewed according to operational criteria, substance properties, locations of use, or other characteristics.
Hazardous Substances Portals with Read-Only Access
Through hazardous materials portals, employees have read-only access to relevant safety data sheets, operating instructions, and other information on hazardous materials. Service providers can also share specific information with customers as needed. This ensures that the necessary content is available where it’s needed, without the risk of information being accidentally altered.
User and Role Management
User and role management allows you to control access in a way that aligns with your company's structure. In addition, read and write permissions can be assigned on a case-by-case basis so that users can only edit or view the areas that are relevant to them.
Email Notifications
Email notifications provide updates on relevant events and tasks. This allows users to respond more effectively to changes, new tasks, or required actions.
Approval Process for Hazardous Substances
Approval processes for hazardous substances support a structured review of new substances. New hazardous substances can be evaluated, documented, and approved for use within the company.
Importing PDF Safety Data Sheets
With SDBcheck®, safety data sheets can be imported, verified, and transferred directly to GeSi4.
MSDS Validity Check
Selected safety data sheets are checked for plausibility and can then be reviewed by a specialist.
Safety Data Sheet Management
Safety data sheets are managed in a structured manner as a central database for hazardous substance management.
MSDS Validity Check
Outdated safety data sheets can be identified more quickly, and new versions can be processed in a targeted manner.
MSDS Version Comparison
The version comparison feature helps you review changes between SDS versions in a traceable manner.
Manage Ingredients
Ingredients are recorded in a structured manner and made available for assessments, analyses, and risk assessments.
List of hazardous substances
Hazardous substances are recorded centrally and linked to relevant information such as areas of use, quantities, and locations.
Operational Structure, Locations, and Quantities
Hazardous substances can be assigned to sites, areas, workstations, and storage locations, and consumption and inventory quantities can be added for them.
Consolidation Overview
The co-location overview helps you review relevant warehouse information and co-location issues.
Operational Areas According to the Hazardous Incident Regulation
Relevant substance and quantity data can be used for assessments under the Hazardous Incident Ordinance.
Risk Levels According to AwSV
Information on substances hazardous to water can be presented and analyzed in a more structured manner
Hazardous substance labels
Hazard labels can be created based on existing hazard data.
Hazard Assessment for Hazardous Substances Using EMKG
Substance data, activities, exposures, and protective measures are consolidated in a technical manner. The EMKG assists in the systematic classification of hazards and protective measures.
Hazardous Substance Comparison and Substitution
Hazardous substances can be compared, and potential substitutes can be evaluated in a more structured manner.
The STOP Principle and Protective Measures
Protective measures can be incorporated into the risk assessment in a structured manner based on technical logic.
Automate the creation and editing of operating instructions
Operating instructions can be generated automatically, reviewed in the editor, and customized to suit the specific task.
Group Operating Instructions
Similar substances or activities can be grouped together in group operating instructions.
Multilingual Operating Instructions
Operating instructions can be provided in multiple languages.
Dashboard
The dashboard brings together key entry points and overviews in GeSi4.
Queries and Analyses
Data on hazardous substances can be filtered in a targeted manner and analyzed according to operational criteria.
Hazardous Substances Portals with Read-Only Access
Hazardous-substance portals make relevant safety data sheets, operating instructions, and hazardous-substance information available internally to employees or specifically to authorized customers.
User and Role Management
Access, roles, and permissions can be managed to align with the company's structure.
Email Notifications
Notifications provide information about relevant events, changes, or tasks.
Approval Process for Hazardous Substances
Approval processes support the structured review and approval of new hazardous substances.
, Product Owner at GeSi4
What's Next for GeSi4 GefStoff-Profi
GeSi4 is currently in Early Access and is undergoing continuous development. The roadmap provides a concise overview of planned enhancements related to the hazardous substances inventory, risk assessments, operating instructions, and other features.
View Roadmap
Early Access Launch
April 2026
✔ Importing safety data sheets from SDBcheck®
✔ Organizational structure and hazardous substances inventory
✔ Reading portal with safety data sheets
✔ Easy analysis of hazardous substance properties
✔ Substance-specific operating instructions with templates
✔ Storage compatibility overview in accordance with TRGS 510
Q2 2026
through June 2026
✔ Hazard assessment for hazardous substances using the EMKG
✔ Activity-based operating instructions with templates
✔ Group operating instructions
✔ User management with roles
✔ Reading portal with attachments (operating instructions)
Q3 2026
through September 2026
✔ Group operating instructions with expanded functionality
✔ MSDS validity check with email notification to suppliers
✔ Management of ingredients in your safety data sheets
✔ SSO (→ Single Sign-On with your OIDC system)
✔ Printable version of the hazardous substance risk assessment
Q4 2026
through December 2026
✔ Analysis of ingredients, e.g., REACH Candidate List, Annex XVII
✔ Operational areas according to the Major Accidents Ordinance
✔ Hazard levels according to the Hazard Classification Ordinance
✔ Email notifications
✔ Multilingual operating instructions generated by AI
✔ Availableon-premises as Early Access
2027
✔ Hazardous Substance Labels
✔ Approval Process for Hazardous Substances
✔ On-Premise Version
✔ Additional Features in the Works
- This roadmap is based on the June 2026 plan. Changes and adjustments to the order of implementation may occur at any time.
GeSi4 in the cloud or on your own IT infrastructure
GeSi4 can be operated as a cloud solution (SaaS) or within your own IT infrastructure (on-premises). In either case, it remains easy for users to use: They simply open GeSi4 in their browser and do not need to install it locally on individual workstations.
Cloud and On-Premise: Explained Simply
Cloud Solution / SaaS
GeSi4 is provided by GeSi Software and can be easily accessed through a web browser. You don’t need your own server infrastructure, which reduces the technical burden on your IT department. This option is particularly well-suited if you want to get started quickly and keep operations lean.
On-Prem / In-House IT Environment
GeSi4 runs on your own IT infrastructure and is also accessed via a browser. A local installation on individual workstations is not necessary. This option is particularly well-suited when internal policies require operation within your own IT environment.
A Direct Comparison of Cloud and On-Premises Solutions
| Cloud / SaaS | On-Premise | |
|---|---|---|
| User access at | in the browser | in the browser |
| Installation at the workplace | Not required | Not required |
| provided by GeSi Software | on your own IT infrastructure | |
| Requires your own server | No | Yes |
| Updates | run in the background | via your IT / coordinated process |
| IT costs | lower | Higher |
| Suitable for | Quick setup, less IT effort | Companies with their own IT requirements |
Do you need a very comprehensive set of features right away?
In that case, GeSi³ GefStoff-Profi may be the right, proven expert solution for you.
GeSi4 is the new generation of browser-based software currently in Early Access. If, on the other hand, you’d prefer to start working right away with a well-established solution that offers a very broad range of features, GeSi³ GefStoff-Profi might be a better fit.
On the comparison page, you’ll find a concise guide to help you decide based on feature sets, technical foundations, entry-level options, and suitable requirements.
Frequently Asked Questions About GeSi4 GefStoff-Profi
What is GeSi4 GefStoff-Profi?
GeSi4 GefStoff-Profi is the new generation of browser-based software from GeSi Software for professional hazardous substance management. The solution supports key work steps, ranging from safety data sheets, hazardous substance inventories, and risk assessments to the final operating instructions and the provision of relevant information via hazardous substance portals.
Who is GeSi4 GefStoff-Profi designed for?
GeSi4 is particularly well-suited for companies that are new to digital hazardous substance management, operate using a browser-based system, and want to adopt the new generation of software early on. Through Early Access, you can already put GeSi4 to practical use and contribute your experiences directly to its further development.
What is the difference between GeSi³ and GeSi⁴?
GeSi³ GefStoff-Profi is the proven expert solution with a wide range of features and established processes. GeSi4 GefStoff-Profi is the new browser-based software generation from GeSi Software. It was developed from the ground up as a browser-based solution and is available both as a cloud solution and as an on-premises version.
Both solutions support professional hazardous materials management, but differ in terms of their technical foundation, range of functions, starting point, and stage of development.
What does "Early Access" mean at GeSi4?
Early Access means that you can start using GeSi4 even before all planned features have been fully implemented. This allows you to get an early start with the new generation of software, receive priority support, and provide feedback and feature requests directly.
What are the benefits of being an Early Access Partner?
As an Early Access Partner, you can use GeSi4 GefStoff-Profi free of charge for three months and get an early start with the new generation of browser-based software.
Especially if you're setting up your hazardous materials management system from scratch or have been using Excel spreadsheets up until now, the current set of features already provides a solid foundation to get started.
In addition, you’ll receive priority support and can share your experiences, questions, and feature requests directly. This allows you to actively contribute to the product’s further development as GeSi4 grows step by step.
Can I watch GeSi4 live in advance?
Yes. In our regular live webinars, we demonstrate GeSi4 GefStoff-Profi in action. This gives you a sense of the user interface, structure, and key workflows before you request Early Access.
Here you'll find the current dates for the GeSi4 live webinar.
If none of the dates work for you, we can also schedule a custom online presentation with you.
Can I try out GeSi4 in advance?
Yes, a trial is available. A two-week trial period is provided for this purpose. At the beginning, you'll receive a detailed introduction so you can familiarize yourself with the system and its key features.
This way, you can take your time to see if GeSi4 meets your needs. If you're interested in a trial, simply request GeSi4 using the Early Access form.
What features are already included in GeSi4 Early Access?
In the Early Access version of GeSi4 GefStoff-Profi, you can already map out key steps in hazardous substance management. These include processing safety data sheets with SDBcheck®, creating a hazardous substances inventory, conducting hazardous substances risk assessments, developing operating instructions, and providing relevant information via hazardous substances portals.
The range of features is continuously being expanded. Especially if you’re setting up your hazardous materials management system from scratch or have been using Excel spreadsheets up until now, GeSi4 already provides a solid foundation for making the transition to digital.
Do I have to manually enter the data from the safety data sheet into GeSi4?
No. You do not need to manually enter the data from the safety data sheet into GeSi4. Instead, use SDBcheck®, a tool from GeSi Software that interfaces directly with GeSi4.
SDBcheck® parses safety data sheets using an algorithm developed by our technical experts and software developers, along with an additional AI-powered extraction feature. You should then perform a technical review to verify that the relevant information has been accurately extracted.
After that, the data can be checked for plausibility and easily imported into GeSi4. There, it serves as the basis for your hazardous substances inventory and the subsequent steps in hazardous substances management.
How does GeSi4 create operating instructions?
GeSi4 automatically generates operating instructions based on existing hazardous substance data and risk assessments. You can then review and edit the content in the editor and customize it using templates that already specify the layout, design, and certain content.
This results in operating instructions that can be tailored more closely to specific tasks, exposure, and protective measures. Multilingual operating instructions are included in the roadmap as another important component.
Is GeSi4 a SaaS or on-premises solution?
GeSi4 can be deployed as a cloud solution or SaaS solution, or it can be operated within your own IT infrastructure. In both cases, users access the system via a web browser. A local installation on individual workstations is not necessary.
Can I switch from SaaS to on-premises later?
Yes, it is possible to switch from SaaS to on-premise at a later date. Please contact our sales team in advance so that we can review your requirements and provide you with a suitable migration proposal.
Is it also possible to access GeSi4 via a group or functional email address?
No. GeSi4 is specifically designed to use personalized user accounts. This is primarily for security reasons: access, responsibilities, and changes must remain clearly traceable.
This is not a reliable option for group or functional addresses (e.g., info@firma.de). If multiple people share a single account, it becomes impossible to clearly determine later who made which changes. Furthermore, this increases the security risk because passwords would have to be shared internally and reassigned whenever there is a change in personnel.
With individual accounts, employees can still collaborate on the same documents. In addition, roles and permissions can be assigned in a targeted manner. This also supports our commitment to information security: GeSi Software operates in accordance with ISO 27001 .
At SDBcheck® , personal user accounts are also assigned to a shared company account.
Will data from the testing phase or Early Access be retained?
Yes. Data that you enter in GeSi4 during the trial phase or Early Access will be retained and can continue to be used. This means you won’t have to recreate content that has already been created. In addition, new features will be added gradually through automatic updates during Early Access.
What happens to my data during updates?
The data you've already entered will be preserved. This allows you to seamlessly take advantage of updates and continue working with the expanding range of features without having to re-enter your existing content.
Should existing GeSi³ customers switch directly to GeSi4?
We generally recommend that existing GeSi³ customers wait a while before switching. This ensures that a feature set comparable to GeSi³ is available and that data migration is in place.
For users of GefStoff-Profi, the transition is currently scheduled to take place between the fourth quarter of 2026 and the first quarter of 2027. Users of other product lines will have to wait a little longer. We will publish the relevant dates and further information regarding the migration in due course.
Which product is a better fit for my needs: GeSi³ or GeSi4?
That depends on your current situation. GeSi³ GefStoff-Profi is particularly well-suited if you want to start working right away with a proven, expert-grade solution that offers a wide range of features and established processes.
GeSi4 GefStoff-Profi is particularly well-suited if you’re new to digital hazardous substance management, work in a browser-based environment, and want to start using the new generation of software early on. Through Early Access, you can already put GeSi4 to practical use and actively contribute to its further development.
You can also get an initial overview on our comparison page, where we compare GeSi³ and GeSi4 in terms of feature set, technical foundation, getting started, and suitability for specific requirements.
We would be happy to provide you with additional personalized advice on which solution best meets your needs.
What payment model applies to GeSi4?
GeSi4 is initially available as a SaaS solution on a subscription basis. Billing is on an annual basis.
Can I still cancel after 3 months?
The first three months are free of charge. However, the contract does not end automatically after that, as it is an annual contract. At the end of the term, you can, of course, cancel the contract in the usual manner, with three months' notice prior to the end of the contract.
Can I get in-person advice?
Yes. We’d be happy to consult with you during a free, no-obligation initial consultation. You can conveniently book your preferred appointment online.
Ready to take the next step with GeSi4?
Request early access to GeSi4 GefStoff-Profi. We’ll then work with you to determine whether GeSi4 is a good fit for your current situation and discuss how you can best get started with your browser-based hazardous substances management system. If you’d like, you can try GeSi4 for 2 weeks free of charge and with no obligation.