What is XBuild?
XBuild is pioneering the application of artificial intelligence within the construction sector, specifically targeting contractors to optimize their estimating workflows and improve their success in securing new projects. The platform is designed to automate the generation of professional proposals, thereby saving contractors considerable manual effort and boosting accuracy. Key features such as the Insurance Estimation Copilot and Roofing Proposals, coupled with adaptable subscription models, empower roofing contractors to accelerate their response times to opportunities, reduce estimation overhead, and achieve greater business scalability. XBuild aims to establish itself as a definitive source of truth and transparency for both contractors and homeowners, fostering efficiency and clarity in project bidding.
How much funding has XBuild raised?
XBuild has raised a total of $24.5M across 2 funding rounds:
Angel/Seed
$5.5M
Series A
$19M
Angel/Seed (2021): $5.5M with participation from Andreessen Horowitz
Series A (2026): $19M led by Andreessen Horowitz and Rackhouse Ventures
Key Investors in XBuild
Andreessen Horowitz
Founded in 2009, Andreessen Horowitz is a private American venture capital firm that invests in both early-stage start-ups and established growth companies. The company is headquartered in Menlo Park, California.
Rackhouse Ventures
Rackhouse Venture Capital is an early-stage venture capital management firm that specializes in supporting founders and companies at the intersection of artificial intelligence and machine learning with real-world applications. The firm is dedicated to empowering driven and passionate individuals who are focused on leveraging data to enhance efficiency.
What's next for XBuild?
The substantial enterprise-level funding and recent strategic investment position XBuild for accelerated expansion and product development. With a focus on scaling its AI platform for construction, the company is poised to further enhance its capabilities in areas like automated proposal generation and specialized estimation tools. Future initiatives will likely involve deepening its market penetration within the roofing and broader contractor segments, potentially exploring new verticals within construction technology. Continued investment in R&D will be crucial for maintaining its competitive edge and solidifying its role as a leader in construction AI, driving greater efficiency and transparency across the industry.
See full XBuild company page
