About AtlasAI

Why AtlasAI exists

AtlasAI builds legal AI that works from each firm's matters, under each firm's controls. More than 2,000 attorneys across 5 countries use AtlasAI.

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3-day free trial on one matter. No setup fee.

Our genesis

Built for the second wave of legal AI

Stephen Costigan founded AtlasAI on one conviction: the law firms that lead will run AI on their documents, matters and accepted positions, under their controls. Other firms will use the same public chatbots as every competitor.

The first wave of legal AI gave every firm the same models, trained on the same public internet and returning the same answers, so access stopped being an advantage. AtlasAI was built for the second wave, in which each firm's work product becomes the context of every answer, draft and review.

Since the first release, AtlasAI agents have read iManage, SharePoint, NetDocuments, email and network shares, and connected each party, matter, clause, obligation and defined term in one knowledge graph. Every answer cites the firm's documents, and each attorney sees only the documents that attorney may open.

Our customers

The firms that run AtlasAI

2,000+attorneys that use AtlasAI

5countries

United StatesUnited KingdomGermanyBelgiumChina

AmLaw firms run private AtlasAI deployments in their Azure subscriptions. AtlasAI is a member of the iManage Elevate Partner Program.

Our vision

Every matter, working for every attorney

AtlasAI exists so that every matter, memo and negotiated clause in your firm works for every attorney: searchable, cited and ready to draft from, in infrastructure your firm controls.

AtlasAI agents scour your firm's systems for the most relevant matter information, put that information at each attorney's fingertips, and execute legal work through agentic workflows your firm defines.

AtlasAI agents prepare the work, cite every source and wait for an attorney's approval before any work product leaves the firm.

The operating principle

We run AtlasAI the way we advise firms to run AtlasAI

AtlasAI agents perform the work of more than 20 staff roles across the company. A small senior team directs the work, and agents do the volume.

Marketing

Agents run marketing research, content and publishing, and the team reviews every piece before release.

Sales and development

Agents prepare account research, outreach and engineering work, and the team approves each step.

Security

AtlasAI agents scan cloud posture, dependencies and runtime threats under the AtlasAI Security Officer.

Built for privileged work

Your firm's controls in every deployment

AtlasAI serves firms whose client data cannot leave their control, as private infrastructure in your Azure subscription or as the managed AtlasAI cloud, with the same controls in both.

Deployment

Your Azure subscription or the AtlasAI cloud

Your firm picks the deployment, and client data stays under your firm's controls.

Permissions

Enforced to the document

Each attorney sees only the documents that attorney may open, with ethical walls applied.

Model choice

Claude and GPT models

Your firm picks the models per matter and per sensitivity class.

Audit log

Every question, answer and agent step

AtlasAI logs every question, answer and agent step, and your firm can export the log.

The team

A senior, AI-native team

AtlasAI has offices in New York and Denver. Stephen Costigan is the founder of AtlasAI and an AI engineer, and Preetham Bingi is the Lead AI Engineer of AtlasAI. Each AtlasAI engineer directs a fleet of agents, so a small senior team ships at the scale of a much larger team. Each Enterprise firm works with a dedicated AtlasAI team for support and custom integrations.

Where AtlasAI operates

New York and Denver

AtlasAI combines the legal market of New York with the engineering talent of the Mountain West, with a distributed team across both offices.

Office	Address	Focus
New York	575 Fifth Avenue, New York, NY 10017	The legal market
Denver	1200 17th Street, Denver, CO 80202	Engineering

Questions about AtlasAI

What is AtlasAI?

AtlasAI is AI infrastructure for law firms: Enterprise Search, Chat with citations, drafting, agentic workflows and practice management, on your firm's knowledge graph. More than 2,000 attorneys across 5 countries use AtlasAI.

Where does AtlasAI run?

AtlasAI runs in the AtlasAI cloud or in your firm's Azure subscription, with the same controls in both. The cloud uses a US region by default, or an EU, UK or Canada region on Enterprise.

Which sources does AtlasAI connect?

AtlasAI connects iManage, SharePoint, NetDocuments, OneDrive and your matter workspaces, CourtListener for case law and EDGAR for SEC filings, and the AtlasAI add-in brings AtlasAI into Microsoft Word. Legal Research and the document system connections are part of the Professional plan.

Which models does AtlasAI use?

Your firm picks Claude or GPT models for each matter. Every approved model provider works under zero data retention terms, and under the Master Subscription Agreement AtlasAI uses no customer data to train, fine-tune or improve any model.

Which documents does each attorney see?

Each attorney sees only the documents that attorney may open. AtlasAI applies your firm's iManage permissions and ethical walls to every answer and agent step, and logs every question, answer and agent step.

Where are the AtlasAI offices?

AtlasAI has an office in New York, at 575 Fifth Avenue, New York, NY 10017, and an office in Denver, at 1200 17th Street, Denver, CO 80202.

How does a firm start with AtlasAI?

Every plan starts with a 3-day free trial on one matter, with no setup fee. Starter costs $25 per user per month, Professional costs $99 per user per month with a minimum of 5 users, and Enterprise pricing comes from the AtlasAI sales team.