Ambrook Lands $30M Series B Led by Lachy Groom to Unify Accounting and Payments for America’s Operators

Ambrook, a company building accounting and payments software for the people who grow food, build homes, move goods, and hold communities together, has closed a $30 million Series B round led by Lachy Groom. The funding, announced August 4, 2026, arrives as the company reports more than 8,000 businesses now rely on its platform.

Ambrook’s product combines bookkeeping, payments, and business insights into a single system. Every transaction can be tagged by enterprise, project, or location, and AI scans and sorts receipts automatically. On the payments side, invoicing, bill pay, mailed checks, and team cards flow through the same ledger, eliminating double-entry and the need to switch between tools at month-end. The reporting layer surfaces which lines of business are actually profitable and generates documentation a banker, accountant, or business partner can trust.

The company serves a set of industries that have historically been underserved by generic accounting software: farming, ranching, construction, trucking, property management, and field services. Its customer base, now north of 8,000 operations, includes names like Diamond W Cattle Company, Bread & Butter Farm, Mountain Masters Construction, and American Disposal and Septic.

Lachy Groom, the sole named lead investor in the round, has backed a range of vertical software and fintech companies. The investment signals continued interest in platforms that wrap industry-specific workflow and financial tools into one experience, particularly for sectors where paper checks, spreadsheets, and disconnected point solutions still dominate.