Attentive.ai raises $30.5M to automate construction takeoffs with AI

San Francisco-based Attentive.ai has raised $30.5 million in Series B funding led by Insight Partners with participation from Vertex Ventures, Tenacity Ventures, and InfoEdge Venture Fund, bringing total funding to $48 million. The company addresses mounting pressure in the construction industry with Beam AI, an AI-powered takeoff platform that fully automates quantity takeoffs across major construction trades, trusted by over 1,100 contractors and suppliers.

Despite rapid advances in technology elsewhere, many preconstruction teams still rely heavily on manual takeoffs and spreadsheets, creating time-consuming bottlenecks and limiting bidding capacity as large infrastructure, industrial, and data centre projects accelerate across the U.S. Beam AI significantly reduces manual labour whilst increasing bid volume and accuracy through full automation of the most time-intensive part of preconstruction.

“Our mission is to be the most trusted preconstruction platform. With this funding, we’ll accelerate our AI model development and expand beyond takeoffs into estimating, bidding, and collaboration, building the foundation for the next decade of construction growth,” said Shiva Dhawan, co-founder and CEO of Attentive.ai.

Attentive.ai was co-founded by Shiva Dhawan, who leads the company’s vision to transform preconstruction workflows. The team initially built computer vision and AI models for CCTV surveillance and satellite imagery before discovering a larger challenge through early work automating property measurements for landscaping and maintenance businesses: construction estimating and takeoffs. That insight became the turning point to build Beam AI as a 100% automated takeoff platform.

Beam AI leverages a human-in-the-loop model that integrates AI precision with expert quality assurance, ensuring 100% automated takeoffs with minimal errors. Core features include full automation of takeoffs across diverse construction trades, time savings of up to 90%, and integration with bid tracking and collaboration tools for seamless workflow management, as well as a mobile application for onsite progress tracking and geotagging.

“Unlike AI-assisted tools that still require users to click, trace, and label drawings, the platform produces ready-to-use material quantities and assemblies within 24-72 hours, called ‘outcomes as a service,'” explained Dhawan. “Each output goes through a human QA layer to ensure field accuracy, giving estimators confidence to use the platform’s outputs directly for pricing, quoting, or importing into estimating systems. This combination of AI + human expertise makes Attentive.ai the only platform that scales automation without sacrificing trust in results.”

The platform has delivered measurable results for contractors, with Rays Stairs Inc. doubling its bid volume and scaling revenue from $900,000 to $2 million within two months whilst saving 18 hours per week. Bommarito Construction submitted 50 more bids in six months and increased revenue by $1 million.

With its latest funding, Attentive.ai plans to deepen Beam AI’s core intelligence and develop new AI-powered solutions covering the entire preconstruction lifecycle, including estimating, bidding, and collaboration features. The company also aims to expand its global presence to meet increasing demand driven by large-scale construction projects worldwide, building the foundational platform that enables the next decade of growth in construction through AI innovation.

“Attentive has established itself as a clear category leader in AI-driven construction takeoffs. Its combination of advanced AI with human-in-the-loop QA delivers immediate ROI—helping customers save time, bid faster, win more projects, and boost productivity,” said Nikitas Koutoupes, Managing Director at Insight Partners. “What truly stands out is the team’s product vision, customer-centric approach, and strong founder leadership.”

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