AI & Machine Learning
Crunchbase News10 days ago
3

Investors Have Poured Billions Into Plaintiff-Side Legal AI, But Defense Could Be The Next Big Opportunity

AI

Legal AI funding heavily favors plaintiff-side firms, but defense-side legal AI presents a large, underdeveloped opportunity for investors.

Investors Have Poured Billions Into Plaintiff-Side Legal AI, But Defense Could Be The Next Big Opportunity

Intelligence Insights

Context + impact, normalized for TechCulture.

The Big Picture
Legal tech investment is booming, with plaintiff-side AI companies like EvenUp, Eve, Supio, and Darrow raising a combined $682 million, representing 71% of disclosed legal AI capital. This concentration reflects standardized workflows in plaintiff firms that are well-suited for AI automation. In contrast, defense-side legal AI remains fragmented and underfunded, despite serving large enterprise markets such as retailers, insurers, and healthcare systems. Defense workflows vary widely, and buying cycles are longer, but AI is now making it feasible to aggregate and analyze litigation data for better risk and cost management. The article argues that defense-side legal AI could be the next big opportunity, with potential for a durable category leader built on proprietary outcome data and enterprise adoption.
Why It Matters
While billions have flowed into AI for plaintiff-side legal work, the defense side remains fragmented and underfunded, creating a rare venture-scale opportunity. As AI matures to handle messy, enterprise-grade litigation workflows, startups that build proprietary outcome data and benchmarking tools could become the next category leaders, reshaping how corporations manage legal risk and spend.

Deepen your understanding

Use our AI to break down complex signals.

Select an AI action to generate more depth.

By Patrick Ip

Legal tech funding is booming, but the money isn’t spreading evenly across the market.

Last year, Crunchbase News reported that legal tech startup investment was riding high as investor enthusiasm for AI reshaped legal software funding, citing a Goldman Sachs report estimating that 44% of legal work could eventually be automated. That concentration has helped create one of the clearer success stories in legal AI — and may also be obscuring an adjacent market that remains far less developed.

Using disclosed funding totals for a selected group of plaintiff-side legal AI companies, the imbalance is hard to miss.

Patrick Ip is CEO and co-founder of Theo Ai
Patrick Ip is CEO and co-founder of Theo Ai
Patrick Ip

EvenUp has raised $370 million, Eve $164 million, Supio $85 million, and Darrow $63 million, for a combined total of roughly $682 million. Plaintiff-focused companies account for about 71% of disclosed capital for legal AI, suggesting investors have found a part of the sector where adoption, workflow clarity and venture-scale narratives already line up.

That investor interest is not difficult to understand. Plaintiff firms tend to share more standardized workflows around client intake, case evaluation, medical review and demand generation — all areas where AI can automate repetitive work and improve throughput. As those firms have adopted software, the category has become easier to understand, distribute and fund.

The underserved side: legal defense

The defense side, by contrast, remains underdeveloped and may present the next big opportunity.

Corporate legal departments and the law firms managing high-volume defense work still rely heavily on fragmented systems, spreadsheets, email-based coordination and outside counsel processes that were not designed to produce portfolio-wide visibility. For companies facing hundreds or thousands of active matters, litigation is often still run more as a services function than a software-enabled one.

That creates a sizable but harder-to-package opportunity. Retailers, insurers, healthcare systems and financial services companies can each manage large litigation portfolios, yet many still lack a unified view of case risk, settlement patterns, legal spend and outside counsel performance. The need is not new. What has been less clear is whether a venture-backable software category could be built around it.

Part of the reason defense-side legal AI has lagged is structural. Workflows vary widely by industry, matter type and regulatory context, making the market less standardized than plaintiff-side practices. Buying decisions also tend to run through general counsels, legal operations teams and outside counsel relationships, which can lengthen sales cycles and make the category look less immediately viable to investors.

But a shift is underway. Last fall, Crunchbase News reported that legal tech funding reached record highs in 2025, reinforcing how quickly investor attention has shifted toward AI-enabled legal workflows. As plaintiff-side firms get faster at sourcing, valuing and prosecuting claims with software, the operational pressure on defense teams mounts. At the same time, AI is making it more feasible to turn messy litigation workflows into systems that can surface comparable matters, flag risk earlier and benchmark outcomes across portfolios.

From an investor perspective, that makes defense-side litigation AI look less like a niche and more like an underbuilt segment of a broader legal software market. If plaintiff-side investment reflects where legal AI has already become easy to fund, defense-side infrastructure may represent where the next category still has room to form.

Investors, take notice

For venture capitalists, this is the kind of asymmetry worth watching: a large enterprise market with measurable pain points, improving technical feasibility, and no entrenched category leader yet. What investors should watch is whether startups in the category can pair proprietary outcome data with repeatable enterprise adoption — the combination most likely to produce a durable category leader.

One emerging approach on the defense side is exposure and settlement benchmarking: using historical resolution data to estimate settlement ranges, legal spend and case risk across similar matters. In practice, that can mean comparing claims by jurisdiction, plaintiff firm, claim type or other operating variables to help in-house teams make faster and more consistent decisions.

If the category scales, one potential moat may come from proprietary outcome data. Defense-side settlement details, matter economics and resolution patterns are often difficult to reconstruct from public records alone.

A platform that aggregates and normalizes those signals across customers could build a data asset that becomes more useful with scale — a familiar dynamic in vertical software, and a potential early signal for investors of durable advantage in defense-side legal AI.

There is still no clear, scaled, venture-backed winner built specifically around defense-side litigation intelligence. For startup and growth investors, that makes the segment less a settled market than an open question: whether one of legal AI’s next durable companies will emerge not from the workflows that have already attracted the most capital, but from a large enterprise category whose software stack is still taking shape.


 Patrick Ip is CEO and co-founder of Theo Ai, which builds AI-powered litigation intelligence for corporate defense teams and law firms.

Related Crunchbase query:

Related reading:

Illustration: Dom Guzman

Startups Big Tech AI Funding Legal Tech

Intelligence Exchange

0

Log in to participate in the exchange.

Sign In

Syncing Discussions...

Finding Related Intelligence...