“Can an AI teammate become the operating system — estimating, project management, and embedded finance — for the 600,000 US residential remodeling contractors?”
Founded 2019 as 1build, a construction pricing data / Universal Catalog API company. Pivoted into an AI estimating and end-to-end business OS for residential remodelers and trade contractors under the Handoff brand. In 2025-2026 the product expanded well beyond estimating into embedded financial workflows — invoicing, online payments (Stripe → Rainforest), consumer financing (Acorn), and QuickBooks sync — pursuing the 'AI teammate that runs a construction company' thesis.
Handoff processes payments through Rainforest Pay and Stripe.
Handoff's lending and capital products are provided by Acorn Finance.
Handoff connects to bank accounts through Plaid.
Handoff integrates with QuickBooks Online.
The Embedded Finance Index 2026 maps 4 layers in Handoff's stack: Payments / PSP (Rainforest Pay and Stripe); Lending (Acorn Finance, AI Customer Financing (Acorn Finance) and Client financing on Pro/Scale plans); Open banking (Plaid); Accounting (QuickBooks Online).
Handoff is founded in 2019 and headquartered in Miami, Florida, United States (hubs in Austin, São Paulo, Buenos Aires).
Handoff has raised $25M+ in total (latest round: Growth (post-$5.8M seed)).
Get a read on where your own stack stands against Handoff and the rest of its category — what they built versus bought, which providers they use, and where the gaps in your own strategy and competitive set actually are.