preconstruction
(20)
Procore Technologies
A carpenter who got tired of paper blueprints built the software the construction industry now runs on - and priced it so nobody has to pay per seat.
FlowManual
FlowManual is an AI platform for the back office of construction contractors. It reads specs, contracts, quotes, and invoices and automatically marks up scope, prices, deadlines, and exclusions, then compares bids against signed contracts and invoices against locked buyout prices to flag every scope change and price drift by severity and dollar impact. Founded in 2026 by Harvard dropouts David Shijoon Bae and Michael Lin, the company is part of Y Combinator's Summer 2026 batch and aims to cut the repetitive manual work of pre-construction so contractors can bid more and deliver at a higher standard.
Boon
Boon builds AI agents that automate the paperwork-heavy back office of physical industries. Founded in 2023 by ex-Samsara product leader Deepti Yenireddy, the San Mateo company first launched a workflow platform for commercial fleets - handling order entry, load sourcing, compliance and fuel optimization - and has since pushed into construction, where its agents run preconstruction workflows from blueprint to bid, including takeoffs, clash detection and bid leveling. Boon raised $20.5M across seed and a $15.5M Series A led by Redpoint Ventures and Marathon in December 2024.
Pegbo
Pegbo is a Menlo Park construction-technology startup that gives preconstruction teams AI coworkers to source, engage, and vet trade partners. Its platform searches a database of more than one million verified subcontractors and suppliers - filterable by scope, location, NAICS code, union status, and certifications like MBE, DBE, and WBE - then automates outreach, bid-coverage tracking, document collection, and compliance so general contractors and project owners can hit supplier-diversity goals faster and with less busywork.
Primepoint
Primepoint is a San Mateo-based construction intelligence company whose AI reads and understands construction drawings the way an experienced project team does. Founded in 2024 by computer-vision pioneer Lubomir Bourdev and product veteran Hamid Palo, it builds a proprietary knowledge graph that links every drawing element - down to the tag level - to its schedule, specification, and related documents, then layers a natural-language assistant named Marvin on top so teams can ask project questions in plain English. The platform automates the manual, error-prone work of constructability reviews, RFI drafting, submittal comparison, and drawing overlays, flagging conflicts before they become field problems. Primepoint closed a $10M seed round in April 2026.
Tangible
Tangible is a San Francisco climate-tech company that turns static construction drawings and 3D models into live materials data. Its AI-powered platform reads Revit models and PDF drawings to give preconstruction teams structured quantities, cost, and EPD-backed embodied carbon in one place - so developers, contractors, and architects can see the carbon and cost impact of a design and cut both before a building is ever poured. Founded in 2021 by Anneli Tostar and Nicole Granath, Tangible has raised roughly $8.8M and counts builders like Skanska, Prologis, and Hensel Phelps among its users.
TrueBuilt
TrueBuilt is an AI-native, end-to-end preconstruction platform for general contractors and subcontractors. It uses computer vision and machine learning to speed up quantity takeoff, cost estimation, bid package management, subcontractor qualification, and document analysis - claiming takeoffs up to 70% faster with live, cloud-based collaboration. Founded in 2022 and based in Huntington Beach, California, the company raised a $4M seed round led by Bienville Capital with participation from Fifth Wall and construction firm Marek.
Jon Sibley
Jon Sibley is the Founder and CEO of TrueBuilt Software, an AI-native preconstruction platform headquartered in Huntington Beach, California. A former NCAA Division I water polo player at UC Berkeley and Team USA competitor, Sibley translated elite-sport discipline into enterprise software sales at Quid and Visa before founding TrueBuilt in July 2022. The company raised a $4 million seed round in 2023 led by Bienville Capital with participation from Fifth Wall, and in late 2025 acquired Capabuild — a mobile field documentation platform — driving a 124% revenue increase in three months post-close. TrueBuilt consolidates what was once a fragmented 6-8 tool preconstruction workflow into a single AI-powered platform serving general contractors and subcontractors.
Bobyard
Bobyard is a San Francisco AI company that automates construction takeoffs and estimates. Its proprietary computer-vision and NLP models read blueprints and automatically count symbols and measure areas and lengths, cutting bid-prep time by more than half. Founded in 2023 by Michael Ding, the company started with landscaping - one of construction's least-digitized trades - and has expanded into electrical, finishes, mechanical, and plumbing. It raised a $35M Series A led by 8VC in December 2025.
MeltPlan
MeltPlan is a Berkeley-based AI-native planning engine for the construction industry. It moves critical decisions upstream into preconstruction - automating quantity takeoffs, checking building-code compliance, and leveling bids - so that architects, contractors and owners can stress-test plans before a shovel hits the ground. Founded in 2025 by Kanav Hasija (ex-Innovaccer) and Tanmaya Kala (ex-DPR), the company raised $14M led by Bessemer Venture Partners and is already deployed with DPR Construction and Innovo Group.
PlanHub
PlanHub is a cloud-based preconstruction platform that connects general contractors, subcontractors, and suppliers during the bidding phase of construction projects. Built by contractors in 2008 and launched as a digital marketplace in 2015, it combines a nationwide network of 500,000+ construction professionals with bid management, project discovery, takeoff and estimation, and AI-driven tools so the right people find the right projects and win more work.
Acelab | Material Hub
Acelab is a New York-based AEC technology company building an AI-powered Material Hub for the architecture and construction industry. The platform helps architects, designers, and building owners research, compare, specify, and document building products from a database of more than 250,000 products across 10,000+ brands, with native Revit integration and tools that keep a single material selection synced across every project document. Founded in 2019 by Harvard and MIT architecture graduates, Acelab is used by over 20,000 firms, including more than half of the top 100 global architecture practices.
PermitFlow
PermitFlow is a New York-based construction technology company building an AI platform that automates the permitting lifecycle - from jurisdiction research and application prep to submission, tracking, inspections, and license management. Founded in 2021 by Francis Thumpasery and Samuel Lam, the company says its software has powered more than $20 billion in construction value and cuts approval times roughly in half for builders like Lennar, Amazon, IKEA, and Toll Brothers. It raised a $54M Series B led by Accel in December 2025, bringing total funding to about $90.5M.
California Drywall Co.
California Drywall Co. is one of the largest wall-and-ceiling specialty contractors in the United States, building interiors and exteriors across Northern California since 1946. From its San Jose base it delivers drywall, lath and plaster, metal framing, cold-formed steel engineering, fireproofing, acoustical ceilings, rainscreens and prefabricated wall panels for landmark projects including Apple Park, Levi's Stadium, SFO Terminal 2 and major hospitals. In August 2023 it became a 100% employee-owned company through an ESOP, putting equity in the hands of its roughly 700 team members.
Hathaway Dinwiddie
Hathaway Dinwiddie is a 100% employee-owned general contractor headquartered in San Francisco that has spent more than a century building the landmarks California works, lives, and heals in - from the Salesforce Tower to the Lucas Museum of Narrative Art and more than 10 million square feet of life-science space on the Peninsula. Built on planning, adaptation, and proactive partnership, the firm pairs century-old craft with advanced BIM workflows, LEED-driven sustainability, and an industry-leading safety record.
Rudolph and Sletten
Rudolph and Sletten is a California-based general contractor that has built much of Silicon Valley's physical fabric - from Apple Park and Lucasfilm's Skywalker Ranch to hospitals, research labs and university campuses. Founded in 1959 in a Los Altos garage, the firm pioneered guaranteed-maximum-price, fast-track delivery and grew into one of the West Coast's largest builders of technically complex healthcare, life-sciences and education projects. Now a subsidiary of Tutor Perini, it employs roughly 740 people and reports about $307 million in annual revenue.
Webcor
Webcor is a San Francisco-based commercial general contractor and one of California's largest builders, known for self-performed concrete, finish carpentry and millwork, deep preconstruction and BIM expertise, and a portfolio of landmark projects from the California Academy of Sciences to the Salesforce Transit Center. Founded in 1971 and owned by Japan's Obayashi Corporation since 2007, Webcor pairs craft-trade self-performance with virtual-building technology to deliver complex, sustainable buildings across the state.
Matt Rossie
Matt Rossie is the President and CEO of Webcor, the San Francisco-based general contractor behind some of California's most complicated buildings. He climbed the company over 22 years from the client side of construction into the COO seat, then the corner office, on January 1, 2023.
Ro Bhatia
Ro Bhatia is the CEO and Board Member of PlanHub, the leading preconstruction SaaS platform connecting over 32,000 general contractors, 350,000 subcontractors, and 30,000+ suppliers across the United States. A veteran SaaS executive with 18+ years spanning Google, eBay, Yahoo, and The Home Depot, Bhatia joined PlanHub in January 2022 and transformed it from a slow-growing lifestyle business into a fast-growing platform with 245% revenue growth over three years, culminating in PlanHub's acquisition by GrowthCurve Capital in September 2025.
Kanav Hasija
Kanav Hasija is Co-Founder and CEO of MeltPlan, an AI-native preconstruction planning platform backed by Bessemer Venture Partners. A serial entrepreneur who co-built Innovaccer into a $3.2B healthcare data unicorn, he now applies the same data-platform playbook to construction — where fragmented planning and late-stage surprises cost billions annually. MeltPlan's tools (Melt Code, Melt Takeoff) bring AI-powered code compliance and quantity estimation to architects, contractors, and owners before the first shovel breaks ground.