Henry AI Raises $16.5M Series A to Build CRE Deal Infrastructure

Henry AI has raised a $16.5M Series A led by FirstMark Capital, giving the New York startup fresh capital to expand its engineering and product teams. The July 29, 2026 financing also includes Thomson Reuters Ventures, Y Combinator, Susa Ventures, 1Sharpe, StoryHouse Ventures, Pioneer Fund, RXR Arden Digital Ventures, Karman Ventures, and Coalition Operators.

The funding matters because Henry is trying to move beyond automating commercial real estate documents. Its broader ambition is to become the operating layer that connects a firm's underwriting models, property data, transaction history, client relationships, market research, and final deal materials.

That is a more consequential challenge than creating presentations faster. Commercial real estate firms generate valuable knowledge with every transaction, yet much of it remains scattered across spreadsheets, inboxes, archived files, and individual employees. The result is that teams often rebuild context before they can use it.

What Happened

FirstMark led Henry's Series A, while Thomson Reuters Ventures joined as a strategic investor and Y Combinator continued its support. Participating investors also include Susa Ventures, 1Sharpe, StoryHouse Ventures, Pioneer Fund, RXR Arden Digital Ventures, Karman Ventures, and Coalition Operators. FirstMark partner Adam Nelson also joined Henry's board.

The round follows a $4.3M seed financing announced in February 2025, which was co-led by Susa Ventures and 1Sharpe Ventures. Those two disclosed financings total at least $20.8M, although Henry did not disclose a valuation or present the Series A as a broader funding milestone.

Henry said the new capital will support additional engineering and product development as the company expands from document automation into a system of record for commercial real estate transactions. That effort begins with Henry Deal, a product launched on June 15 that applies a firm's institutional knowledge across underwriting, packaging, and closing workflows.

From Deal Decks to Deal Infrastructure

Henry was founded in 2024 by CEO Sammy Greenwall and CTO Adam Pratt. Greenwall previously co-founded commercial real estate financing platform Lev, while Pratt brought product and engineering experience from earlier software ventures. Together, they built a founding team with both commercial real estate workflow expertise and technical depth.

The original product addressed an obvious pain point. Offering memorandums, pitch decks, and related deal materials require significant analyst and design effort, even when much of the underlying work repeats. Henry now supports custom underwriting models, market research, transaction summaries, buyer lists, and branded client deliverables through workflows that connect with email, Excel, and chat interfaces.

The larger strategic move is Henry Deal. Instead of treating each document as an isolated output, Henry is organizing the data and context that generate those outputs, including prior transactions, property records, comparable properties, underwriting assumptions, client history, and market intelligence. If that context remains current and reusable, the next underwriting model or pitch deck becomes the product of a living knowledge system rather than another reconstruction exercise.

Why FirstMark's Bet Matters

Vertical AI becomes more compelling when it owns a critical workflow, understands industry-specific data, and produces an outcome directly tied to revenue. Henry operates in the part of commercial real estate where speed and presentation quality can influence whether a firm wins a listing, secures a mandate, or advances a transaction.

That explains why the investor group matters. FirstMark contributes deep enterprise software experience, Thomson Reuters Ventures brings a strategic perspective on knowledge work, and returning investors have watched Henry evolve from an early document-generation product into broader transaction infrastructure.

The board appointment reinforces that evolution. Adam Nelson's addition gives FirstMark a direct role as Henry works to convert early customer adoption into a durable platform position, embedding the product into how firms underwrite, package, and execute transactions.

Traction, With the Right Caveat

Henry says more than 150 firms use its platform and that it has produced over 20,000 client-ready deliverables representing more than $150B in underlying transaction value. The company also reports a 90% reduction in analyst production time, a median platform turnaround of under four hours, and more than 20% of customers reducing staffing requirements.

Those figures are company-reported rather than independently audited, so they should be viewed as management's account of operating traction rather than third-party validation. Even so, the shape of the metrics is revealing. Henry is measuring deliverables, turnaround time, and labor efficiency, outcomes that align more closely with customer economics than generic AI usage statistics.

Henry's official site also highlights customer use cases across firms including Colliers, Marcus & Millichap, Compass, and other commercial real estate organizations. The common thread is not novelty. It is reducing work that once required hours or days into reviewable output while preserving each firm's branding, assumptions, and transaction context.

What This Signals for Vertical AI

The strongest vertical AI companies are not simply wrapping general-purpose models in industry language. They organize proprietary customer data, integrate into existing workflows, apply domain-specific controls, and take responsibility for complete work products that previously required significant manual effort.

Henry fits that pattern by preserving familiar commercial real estate tools, including Excel and email, while building a context layer beneath them. That approach minimizes behavioral change for brokers and analysts while giving the platform more opportunities to learn from a firm's own transactions, comparable properties, and templates.

The challenge is execution. Moving from document generation to becoming a system of record requires stronger data governance, permissions, accuracy, integrations, and customer trust, especially when firms depend on the platform for underwriting and client-facing work. Henry's Series A provides additional resources to meet that standard, but it also raises expectations for reliability.

The Bigger Industry Shift

Commercial real estate has no shortage of data, but access to that knowledge and the ability to reuse it remain uneven. The strategic opportunity is not simply generating more text or better presentations. It is transforming fragmented institutional knowledge into an asset that compounds across every transaction.

If Henry succeeds, its value will be measured by how much of a firm's workflow moves through that context layer and how difficult it becomes to return to disconnected files and spreadsheets. The Series A is therefore a bet on software that remembers how a commercial real estate organization works and converts that memory into faster, more consistent execution.

For Sammy Greenwall, Adam Pratt, and the Henry team, the financing validates the initial wedge but does not complete the story. The next phase is proving that a product born in the deal-deck workflow can become durable infrastructure for the entire transaction lifecycle.