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ClauseBase

clausebase.com

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Spec score 8.5 #4 of 31 in Legal Document Automation Software

What it is

ClauseBase provides legal drafting and review tools for creating, refining and checking documents, including tools within Microsoft Word. ClauseBuddy can turn a template or document into an interactive questionnaire that generates customized, consistent documents. Its AI review and proofreading tools identify risks, errors and inconsistencies. Clause Finder lets teams build searchable clause libraries and insert stored clauses into Word documents. ClauseBuddy is available as Word and Outlook add-ins and as a standalone web application. Listed integrations include iManage, Contractify, Corporify, Google Maps, company database lookups, drag-and-drop and API options. ClauseBase says it is ISO 27001:2022 certified. Its production servers are hosted in Germany, with hourly encrypted database backups stored in Paris. For typical questionnaire templates, business data sent to generate a PDF or DOCX is deleted within 60 to 120 seconds. The company says it does not use customer data to train or fine-tune its own AI models. Its focus is drafting, not contract storage or archiving, and it does not supply its own ready-made legal templates. Pricing is available by contacting ClauseBase.

Spec sheet

What it does
ClauseBase provides legal drafting, document automation, clause management and contract-review tools through ClauseBuddy and Clause9.Read 15 Oct 2026 · clausebase.com
Purpose
ClauseBase provides legal drafting and review tools for creating, refining, and reviewing documents, with its tools available within Microsoft Word.Read 3 Oct 2026 · clausebase.com
Integrations
Named integrations include iManage, LawVu, Corporify and Contractify, with additional integrations available through APIs or on request.Read 15 Oct 2026 · clausebase.com
Support
The company says its support desk is staffed by legal engineers with contract-drafting experience and offers onboarding support.Read 3 Oct 2026 · clausebase.com
Headquarters
Wilsele (Leuven), BelgiumRead 23 Sep 2026 · clausebase.com
AI data use
ClauseBase says it does not use customer data to train or fine-tune its own AI models, and that it passes selected data fragments to LLMs to answer prompts.Read 3 Oct 2026 · clausebase.com
AI functions
The platform applies AI to clause search, document analysis, paragraph drafting, clause analysis and automatic clause extraction.Read 15 Oct 2026 · clausebase.com
AI review
ClauseBuddy’s AI reviewing and proofreading tools identify risks, errors, and inconsistencies in documents.Read 3 Oct 2026 · clausebase.com
Authentication
Clause9 supports optional two-factor authentication and Azure SSO; ClauseBuddy supports Azure SSO and revocable 28-character security codes.Read 15 Oct 2026 · legal.clausebase.com
Automatic styling
ClauseBase automatically adapts inserted clauses to a document's layout, styling and numbering.Read 15 Oct 2026 · clausebase.com
Browser limitation
Browser use works without installation but requires copying and pasting and omits some Word-integrated functions such as house-style enforcement.Read 15 Oct 2026 · help.clausebuddy.com
Clause libraries
Users can extract clauses from precedents, organise searchable libraries and reuse clauses directly in Microsoft Word.Read 15 Oct 2026 · ca.linkedin.com
Clause9
Clause9 uses clause-based automation to generate complex customised legal documents from reusable building blocks.Read 15 Oct 2026 · clausebase.com
ClauseBuddy
ClauseBuddy is a Microsoft Word and Outlook add-in plus browser application for clause libraries, drafting, proofreading and AI-assisted review.Read 15 Oct 2026 · clausebase.com
ClauseBuddy API
ClauseBuddy provides a Swagger-based REST API for Smart Documents, user accounts, folders, files, saved answers and short-lived login URLs.Read 15 Oct 2026 · clausebase.com
Company founded
ClauseBase was founded in 2019 by Maarten Truyens with Senne Mennes and Robbert Jacobs.Read 15 Oct 2026 · clausebase.com
Company size
LinkedIn lists ClauseBase as privately held, headquartered in Leuven and employing 11–50 people.Read 15 Oct 2026 · ca.linkedin.com
Contract-management limitation
ClauseBase says it does not provide contract storage, archiving or full contract-management functionality.Read 15 Oct 2026 · clausebase.com
Data hosting
ClauseBase says its production servers are hosted by Hetzner in Germany and hourly encrypted database backups are stored with Scaleway in Paris.Read 3 Oct 2026 · clausebase.com
Data residency
The company says its servers are hosted in Germany and European customer data is stored in the EEA.Read 15 Oct 2026 · legal.clausebase.com
Data retention
For typical questionnaire templates, business data sent to the server to generate a PDF or DOCX is deleted within 60 to 120 seconds after generation.Read 3 Oct 2026 · clausebase.com
Data-training policy
ClauseBase says customer data is not used to train or fine-tune its own AI models, although selected fragments may be sent to external LLMs for responses.Read 15 Oct 2026 · clausebase.com
Documentation
The help center includes installation, enterprise deployment, system requirements, access instructions, FAQs and quick-start videos.Read 15 Oct 2026 · help.clausebuddy.com
Embedded programming
Clause9 embeds the Clojure programming language for advanced clause conditions, calculations and transformations.Read 15 Oct 2026 · clausebase.com
File import
Drag-and-drop integrations accept Word, Excel, PDF, scanned PDF, plain text, web pages and JSON data.Read 15 Oct 2026 · clausebase.com
First drafts
ClauseBuddy turns a template or document into an interactive questionnaire for generating customised and consistent documents.Read 3 Oct 2026 · clausebase.com
GraphQL API
The GraphQL interface supports clause search, version retrieval, structured JSON, DOCX/PDF rendering and clause composition.Read 15 Oct 2026 · clausebase.com
Installation limit
There is no MSI, EXE or traditional installer; enterprise deployment uses Microsoft AppSource or Office 365 administration.Read 15 Oct 2026 · help.clausebuddy.com
Languages
The product supports 30 listed interface and drafting languages, including English, French, German, Dutch, Spanish, Italian, Chinese, Japanese and Arabic.Read 15 Oct 2026 · clausebase.com
Limit: Capterra reviewer
Capterra reviewers described a steep learning curve, the need for tech-savvy lawyers and significant implementation effort.Read 15 Oct 2026 · capterra.com
Maker legal entity
The maker is ClauseBase BV, registered in Wilsele (Leuven), Belgium, company number BE0723.768.270.Read 15 Oct 2026 · clausebase.com
Microsoft add-ins
ClauseBuddy is available as a Microsoft Word and Outlook add-in and as a standalone web application.Read 3 Oct 2026 · clausebase.com
Notable limitation
ClauseBase says it does not offer its own ready-made legal templates, though third-party inspirational legal content is available.Read 3 Oct 2026 · clausebase.com
Ownership news
ClauseBase announced its acquisition by LawVu on December 18, 2025.Read 15 Oct 2026 · clausebase.com
Praise: Capterra reviewer
A Capterra reviewer said ClauseBase captures delicate legal nuances, saves drafting time and improves document quality.Read 15 Oct 2026 · capterra.com
Praise: GetApp feature scores
GetApp reviewers gave 5.0 ratings for contract drafting, electronic signature, full-text search, version control and workflow management.Read 15 Oct 2026 · getapp.com
Product scope
ClauseBase says it focuses on contract drafting and does not provide contract storage or archiving.Read 3 Oct 2026 · clausebase.com
Questionnaires
ClauseBuddy and Clause9 can generate interactive questionnaires and use answers to assemble documents.Read 15 Oct 2026 · clausebase.com
Rating on G2
0.0 out of 5 from 0 reviewsRead 15 Oct 2026 · g2.com
Rating on GetApp
4.7 out of 5 from 6 reviewsRead 15 Oct 2026 · getapp.com
Rating on Microsoft Marketplace
4.5 out of 5 from 2 ratingsRead 15 Oct 2026 · marketplace.microsoft.com
REST API
Clause9 exposes REST and OData interfaces for user management, temporary logins, document generation and clause retrieval.Read 15 Oct 2026 · clausebase.com
Security certification
ClauseBase states that it has held ISO 27001:2022 certification since September 2023.Read 15 Oct 2026 · legal.clausebase.com
Self-hosting
Enterprise plans can include on-premise hosting, data-at-rest encryption, segmentation, logging, API access and white labelling.Read 15 Oct 2026 · clausebase.com
Swagger sandbox
Clause9 documents its open API with a Swagger experimentation sandbox.Read 15 Oct 2026 · clausebase.com
System requirements
ClauseBuddy requires a recent Microsoft Word for Windows or Mac, Word Online, or a modern browser; older Word versions may disable features.Read 15 Oct 2026 · help.clausebuddy.com

Plans and prices

Clause9 Priced on request Contact us Advanced drafting · clause-based automation · advanced questionnaires · API Read 15 Oct 2026 · clausebase.com
ClauseBuddy Priced on request Contact us AI reviewing · clause libraries · Word/Outlook integration · template-based drafting Read 15 Oct 2026 · clausebase.com

Every ClauseBase plan and price →

Strong points and limits

Strong points

  • Questionnaires generate customized documents from templates.
  • AI tools flag document risks and inconsistencies.
  • Clause Finder supports searchable clause libraries.
  • Available as Word and Outlook add-ins.
  • Typical questionnaire-generation data is deleted within 60–120 seconds.

Limits

  • No free plan is listed.
  • Pricing requires contacting ClauseBase.
  • It does not provide contract storage or archiving.
  • It has no own ready-made legal templates.

Who it suits

ClauseBase may suit legal teams that draft and review contracts in Word and want questionnaires or searchable clause libraries. It is not positioned for contract storage or archiving.

Verdict

ClauseBase focuses on drafting workflows, questionnaire-driven document generation and review rather than lifecycle storage. Teams should account for contact-based pricing and the lack of included ready-made legal templates.

Where Specifiction places it

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