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Gatekeeper OS  AI built for legal work.

Vantage Legal is building a privacy-preserving AI platform that helps legal teams use modern AI in their daily workflows, without losing control of sensitive information.

Early-stage startup building in Singapore.

Legal AI adoption is lagging not due to capability, but due to risk. Law firms face unique structural barriers to integrating AI into their workflows.

Lawyers deal with high-stakes, sensitive documents (client identities, evidence, financial and personal data).

Most AI tools require uploading content to external services, which many firms cannot approve.

Ad-hoc experimentation (copy/paste) is risky and inconsistent across the firm.

Firms want AI productivity, but lack a safe, standard way to use it on real matters.

AI is powerful, but legal needs the infrastructure to use it responsibly at scale.

Gatekeeper OS

Gatekeeper OS acts as a secure AI gateway for a firm. It serves as the primary technical interface between legal professionals and Large Language Models.

It replaces sensitive identifiers with structured placeholders while retaining the context of the document, before AI processing. Names, locations, and financial figures are neutralised before they ever leave your environment.

The AI works on the protected version; results are returned and restored locally. Your data is re-identified only at the point of delivery back to the user’s secure workstation.

This enables AI-assisted legal work while keeping control in-house. Firms gain the massive productivity advantages of modern AI without compromising their professional privilege or client confidentiality.

Suite of Tools

Gatekeeper OS brings everyday legal tools into one secure platform, so lawyers can work faster and with more consistency. These tools are built for law firms and in-house legal teams, and are designed to support lawyers.  

Case Strategy

 Draft research memos by analysing your case against Singapore precedents to find supporting or contradictory case law. Helps lawyers understand and build strategies on a case.

  • Able to compare the case to older cases. 
  • The AI is trained with 15,000 over Singapore court cases.
  • Instead of scrolling through old cases and manually reading through everything. The AI will help lawyers get exact info on a specific case.
Clause Guard

Reviews contracts and flags clauses that may be risky, unusual, or inconsistent with common expectations. Useful for first-pass review, quality control, and surfacing issues that need closer attention.

  • Risk flags with plain-English explanations
  • Suggested alternative wording (optional)
  • Issue checklist for negotiation
Drafting Assistant

Helps create first drafts and improve existing drafts based on clear instructions and context. Designed to accelerate drafting while keeping lawyer judgment firmly in control.

  • First drafts generated from structured prompts
  • Rewrites for clarity, tone, and consistency
  • Version comparisons and suggested edits
Timeline Builder

Extracts dates, events, and relationships from large sets of evidence — such as emails, statements, and reports — and turns them into a clear chronological timeline. Helps teams see the matter at a glance.

  • Chronology of events with source references
  • Gaps and inconsistencies flagged
  • Export-ready timeline format
Deposition / Interview Question Generator

Generates targeted questions based on the facts and issues in a matter, helping lawyers prepare for depositions, witness interviews, and cross-examination. Supports structured, thorough preparation.

  • Question sets organised by theme (credibility, timeline, intent)
  • Follow-up questions and contradictions to probe
  • Structured outline for preparation
Internal Knowledge Assistant

Lets teams ask focused questions about a case bundle or internal knowledge base and receive fast, cited answers. Reduces time spent searching through long documents and repeated requests for background.

  • Direct answers with cited excerpts
  • Fast retrieval of key clauses and facts
  • Helps onboard new team members quickly

Together, these tools give legal teams one platform for consistent, repeatable AI assistance across their workflows.

Designed for

Law firms

Small, mid-size, and enterprise firms seeking secure AI deployment.

In-house legal teams

Corporate legal departments managing sensitive internal data and compliance.

Legal ops / innovation teams

Professionals building the next generation of legal service delivery infrastructure.

Why Vantage Legal

Privacy-preserving by design
One standardised AI workflow
Built for real deployment

Built for legal constraints

Firm-wide, consistent usage

Designed to fit enterprise legal environments

Pricing

Enterprise Edition

S$100,000 annual platform license

S$500 per user per year

Best for firms rolling out firm-wide workflows

Professional Edition

S$35 per user per month

Best for individuals and smaller teams

Pricing can vary based on deployment and firm needs.

Roadmap

Q4 2025
Q1 2026
Q2 2026
Q3 2026
Q4 2026

Functioning MVP

Polished prototype with full masking + AI tools working

Pilot onboarding (5 small–mid law firms), feedback + iteration

First 3 paying clients, marketing push, product development continues

7–10 paying clients, scale readiness

Waitlist benefits
Ideal for
  • Free 1-month pilot for selected firms
  • Founder-led onboarding and setup support
  • Early access to new features and workflows
  • Direct influence on the product roadmap
  • Optional “pilot outcome summary” for internal stakeholders
  • Singapore law firms exploring AI adoption (or already experimenting)
  • Partners / Practice Heads / Ops / IT / KM leaders
  • Teams that want to test AI in real workflows (not just demos)
How the waitlist works

Submit your interest (60 seconds)

Join the Gatekeeper OS Pilot Waitlist (Singapore)

We’re inviting a small number of Singapore law firms to join the Gatekeeper OS Pilot Waitlist. Waitlist firms get priority access and a free 1-month pilot once your slot opens.

Pilot starts with onboarding + check-ins + wrap-up summary

Slots are limited each month to ensure high-quality onboarding and support.

Note: Waitlist ≠ automatic acceptance. Pilot slots are allocated based on fit and readiness.

We review fit and confirm a slot

We’re building the standard AI layer for legal teams.

Built in Singapore, designed for real legal workflows

Focused on practical adoption and measurable productivity

Starting with a beachhead market, expanding regionally over time

Infrastructure & Integrity

The Standard for Secure Legal Intelligence.

Market Traction

Deep engagement with top-tier regional law firms and regulatory innovation sandbox teams.

Regional Scale

Headquartered in Singapore, expanding regionally to define the sovereignty standard for the ASEAN legal ecosystem.

Vantage Legal is building the regional infrastructure layer for safe AI adoption. Our Singapore-based approach ensures that cutting-edge productivity tools serve the practitioner without compromising the fundamental client trust that defines the profession. We plan to expand to other big law hubs in the near future. 

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