# X.Build

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/x-build

- Industry: Software
- Headquarters: San Francisco, US
- Website: www.x.build/
- Total disclosed funding: $19M
- Latest round: Series A (Jan 20, 2026)
- Investors on record: 3

## About

X.Build, based in the US, specializes in AI-driven roofing proposal software, streamlining the proposal generation process for contractors in the roofing industry.Founded in 2023, X.Build is a technology company that provides AI-driven solutions for roofing contractors. The firm is headquartered in San Francisco, US. In January 2026, X.Build raised USD 19.00 mn in a Series A funding round led by N47, with participation from Andreessen Horowitz and Rackhouse Venture Capital. This funding round marks the company's first major financing event. The founder's background remains unspecified, limiting insights into previous entrepreneurial endeavors.X.Build specializes in AI-driven roofing proposal software designed to streamline the proposal generation process for contractors. The core offering includes a platform that allows users to upload job-related photos and measurements, which the AI then utilizes to create professional proposals in real-time. This service caters primarily to roofing contractors, enabling them to produce visually appealing homeowner proposals and adjuster-ready documentation for insurance claims. The software integrates seamlessly with popular measurement and photo tools such as EagleView, Hover, and CompanyCam, ensuring that contractors can efficiently pull in necessary data. X.Build primarily serves the U.S. market, targeting contractors engaged in residential roofing and insurance restoration projects.X.Build operates on a subscription-based revenue model, offering multiple pricing tiers designed to accommodate different levels of usage among contractors. Clients can choose from plans that provide varying numbers of tokens, which are used to generate proposals and insurance reports. For example, the Standard plan provides 200 tokens per month for a fixed monthly fee, while the Pro and Elite tiers offer 500 and 1,200 tokens, respectively, catering to higher volume users with added features such as priority support and a dedicated account manager. The transaction structure primarily involves direct-to-consumer interactions, where contractors utilize the platform to create proposals, share them with homeowners for review, and collect deposits electronically through integrated payment solutions like Stripe. This model enhances the overall efficiency of contracting businesses.In January 2026, X.Build raised USD 19.00 mn in Series A funding, which will be allocated towards developing new products aimed at further enhancing the proposal generation process and expanding into new geographical markets. The company plans to roll out an upgraded version of its software by the end of 2026, incorporating advanced AI features. Additionally, X.Build is targeting expansion into the Canadian and European markets by 2027, broadening its reach and customer base in the roofing contracting sector.

## Funding rounds

- Series A, Jan 20, 2026, $19M — N47, Andreessen Horowitz, Rackhouse Venture Capital

## Investors

- N47 (https://capitalatlas.ai/funds/n47) — Series A
- Andreessen Horowitz (https://capitalatlas.ai/funds/andreessen-horowitz) — Series A
- Rackhouse Venture Capital (https://capitalatlas.ai/funds/rackhouse-venture-capital) — Series A