Today we're announcing two things: a $31M Series B and a new name: Onshore.

The name is deliberate. Tax shouldn't feel abstract or outsourced. It should be grounded in evidence and accountable to outcomes.

Why we started

Every critical enterprise function has been modernized. Sales got Salesforce. HR got Workday. Engineering got GitHub. Corporate tax got… more accountants.

I saw this up close at a top-five accounting firm. Talented people. Good intentions. But a system built on billable hours, fragmented data, and disconnected engagements. A system that rewards time spent, not outcomes delivered.

There is no single source of truth. No system of action. Just spreadsheets, email chains, and late-night scrambles.

We didn't set out to build another tax services firm. We set out to replace the model entirely.

The cost of standing still

More than $200 billion in tax incentives go unclaimed every year. Not because companies don't qualify but because the system wasn't designed to find them consistently or defend them rigorously.

Think about what that means. A manufacturer in Ohio is leaving millions on the table because their CPA firm is stitching together data from disconnected payroll, GL, and project management systems by hand. An engineering firm in Texas qualifies for R&D credits but doesn't claim them because the study takes so long it isn't worth the disruption.

This is the tax services industry today: a tangled web of Big Four engagements, boutique consultants, error-prone spreadsheets, and exorbitant fees with no system tying any of it together. Companies don't just overpay on taxes. They overpay for the privilege of uncertainty.

Where a traditional firm takes 270 days to complete an R&D credit study, our platform takes 28 days. That isn't marginal improvement. It's a fundamentally different architecture and a signal of what's possible when you replace analog workflows with AI. 

What we built

Onshore is not a tech-enabled service or a better spreadsheet. It's an AI-native platform that replaces manual CPA workflows with continuous, automated tax intelligence.

That means automation where it belongs and expert judgment where it matters most. Documentation created at the point of work. Every claim traceable to source data. Every company is getting access to the same caliber of tax optimization.

Over 500 companies have trusted us to identify and defend more than $600 million in incentives. Many came to us after frustrating experiences with traditional providers. They stayed because the results spoke for themselves.

What's next

This Series B, led by FPV Ventures with participation from Vertex Ventures, Restive Ventures, PruVen, and Y Combinator, lets us keep rebuilding the foundation of corporate tax from the ground up, starting with credits and incentives, and expanding into every workflow the industry still does by hand.

We're grateful to Wesley, Pegah, and the team at FPV; Sandeep and the team at Vertex Ventures; Ryan and the team at Restive Ventures; and our partners at Y Combinator for believing in what we're building.

We're just getting started.

Dominic