Trunk Tools
Founded 2021 · 114 employees on LinkedIn · 8 known investors
Trunk Tools provides software solutions for construction workers to improve their job site effectiveness. The company focuses on transforming how construction industry workers operate in the field.
Also known as Trunk Tools Inc. · Trunk Tools, Inc. · Trunk.Tools
Investors · 8
Also in the syndicate · 1
Funding
SEC filings, press & company announcements$40M disclosed across 1 of 3 rounds · 2024–2025
- $40MSeries BJul 2025 · 3 sources
Insight Partners (lead), Innovation Endeavors, Liberty Mutual Strategic Ventures, Prudence, Redpoint Ventures, Stepstone
Source ↗ - Undisclosed amountSeries AAug 2024
Redpoint Ventures (lead)
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Trunk Tools is a New York-headquartered company that sells an AI agent platform for the construction industry. Its software ingests the unstructured document set generated across a project lifecycle — drawings, specifications, RFIs, submittals, schedules, contracts, procurement logs, meeting minutes, field reports and bids — and structures it so that general contractors and their trade partners can query it in natural language and receive sourced answers. The company positions the platform as a purpose-built alternative to general-purpose AI tools, arguing that construction's proprietary data, jargon and multi-party workflows require vertically tailored reasoning models [1][5][6].
The product line is organized as a platform (marketed as "Cortex") plus a set of workflow agents. TrunkText is a Q&A agent that connects to document repositories and returns answers in under 30 seconds. TrunkSubmittal is a discrepancy-detection agent that reviews submittals against project specifications, flags missing, conflicting or noncompliant information, and drafts follow-up actions and emails; an associated Submittal Register feature extracts submittal requirements from a spec book, builds a product hierarchy and publishes the log back to Procore or Autodesk Forma or to CSV. TrunkReview uses vision language models to scan drawing revisions and produce a visual overlay and written list of clouded and unclouded changes. TrunkRFI identifies duplicate or unnecessary RFIs and drafts the ones that are needed, updating status in the project management system. TrunkBid extracts and compares scope-of-work documents and subcontractor bids, surfacing gaps, exclusions, alternates and follow-up questions [0][1].
The company frames its approach as "Intelligence Augmentation" — supplying field and office staff with the right information rather than replacing them — and says it employs veteran construction professionals alongside its AI team [1][3].
Founding story
Founder and CEO Dr. Sarah Buchner grew up in a small village in Austria and worked as a carpenter from age 12 to support her family. She moved from carpentry into general contracting, working as a superintendent, project manager and group leader on projects across Europe, and became the first in her family to pursue higher education, earning a PhD in civil engineering and data science. A fatality on one of her jobsites and her doctoral research motivated her to apply technology to construction safety and productivity. She subsequently attended Stanford Graduate School of Business in Silicon Valley and founded Trunk Tools in 2021 [3][5][6].
Business model
Trunk Tools sells software to construction firms, including enterprise agreements with large general contractors (an enterprise agreement with Suffolk is listed among its company updates). The product is delivered as a platform with multiple add-on workflow agents that integrate into customers' existing project management systems [0][4].
The sources do not describe pricing or contract structure beyond references to enterprise agreements with contractors [4].
Traction
Trunk Tools said in July 2025 that it was deployed on hundreds of construction projects and had scaled revenue 5x over the prior six months. Its website cites more than 500 live jobsites, over $50 billion in construction volume, 87% verified field accuracy and 90% of submittals reviewed automatically. Named customers and testimonial sources include Cleveland Construction, Suffolk, Gilbane Building Company, Haskell, Charps and AMLI Residential [0][4][5][7].
Latest developments
The website is currently promoting Cortex and the five workflow agents it powers. Recent company-listed items include an Autodesk Forma integration (May 2026), an enterprise agreement with Suffolk (March 2026), the launch of TrunkBid extending the product into preconstruction (March 2026) and the launch of TrunkReview (February 2026). News listings also reference a VentureBeat article stating the company's stack cut document review from 60 days to 10 by ditching general-purpose models, a Crunchbase profile of Buchner, an Autodesk Digital Builder blog mention for AU 2026, and a podcast appearance [0][4].
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
The company describes itself as a leading AI platform for construction and says it is deployed on hundreds of construction projects; its website claims more than 500 live jobsites and over $50 billion in construction volume. Press coverage frames it within a construction market valued at $11.4 trillion in 2024 and cites Buildots and Procore Technologies as other firms applying AI to the industry. Insight Partners' Jeff Horing described the company as helping define a new category of AI [0][5][6].
The company argues that general-purpose AI is insufficient for construction because the industry runs on proprietary data, specialized jargon and complex multi-party workflows, and positions itself as construction-specific AI built by construction professionals and trained on a project's own data. It contrasts its agents with traditional tools that act as passive document repositories, describing the product instead as an active teammate that structures documentation, flags risks and surfaces insights in real time [0][1][5][6].
Technology
The platform pre-processes and structures construction documents — specs, RFIs, submittals, drawings, schedules, contracts, meeting notes and field reports — into searchable data and exposes a chat interface for natural-language questions with answers sourced from the underlying documentation. TrunkReview relies on vision language models trained with input from architects and construction professionals to detect both clouded and unclouded changes between drawing revisions. The company states that autonomous agents now handle entire workflows previously requiring human input and connect document data to the project schedule to flag potential issues. It emphasizes vertically tailored AI reasoning agents over general-purpose models [0][1][5].
Go-to-market
Sales are demo-led through the website, supported by published customer case studies, webinars, a learning center, and presence at industry events such as Advancing Construction Technology and Autodesk University. Series B proceeds are earmarked in part for expanding go-to-market teams and a field enablement program. Distribution is aided by integrations with the project management systems contractors already use [0][4][5][7].
General contractors and their trade partners, with users including project managers, superintendents, project engineers, assistant project managers and estimators; the company also targets the "long tail" of smaller projects [0][1][5].
Geography
Headquartered in New York, NY; the sources describe deployments on jobsites and events in the United States (Chicago/Rosemont, Illinois and Las Vegas, Nevada) [4][5][7].
History
Trunk Tools was founded in 2021 by Dr. Sarah Buchner and is headquartered in New York, NY. On July 24, 2025 the company announced a $40 million Series B led by Insight Partners, bringing total funding to $70 million. Company-published updates record a Dropbox integration (June 2025), a post on its AI team (November 2025), the launch of TrunkReview (February 2026), the launch of TrunkBid marking entry into preconstruction (March 2026), an enterprise agreement with Suffolk (March 2026), and an Autodesk Forma integration (May 2026). The site currently promotes "Cortex" and the five workflow agents it powers [0][4][5][6].
Risks & controversies
No risks or controversies are described in the available sources. Most performance and traction figures (jobsites, accuracy, time and cost savings) are self-reported by the company on its own website and are not independently verified in the sources provided.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Founder mafia
4 people who came through Trunk Tools went on to found or lead other companies.
Competitors · 8
by search overlapCompanies competing with Trunk Tools for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 6
launches, deals, and filingsTrunk Tools announced enhanced jobsite AI capabilities via a new Autodesk Forma integration.
Launch of TrunkBid, a bid analysis agent, extending the company into preconstruction workflows.
General contractor Suffolk inked an enterprise agreement with Trunk Tools.
Trunk Tools announced the launch of TrunkReview, its drawing revision agent.
Trunk Tools announced a $40 million Series B led by Insight Partners with participation from Redpoint Ventures, Innovation Endeavors, Stepstone, Liberty Mutual Strategic Ventures and Prudence, bringing total funding to $70 million. Proceeds are earmarked for engineering, product and go-to-market hiring, field enablement, and scaling the AI platform.
$40M source ↗
Trunk Tools announced an integration with Dropbox for documentation management.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
Trunk Tools expands construction AI from document search into workflow agentsruntimewire.com · Aug 2026▸Research sources · 8
primary sources listed
- Trunk Toolstrunktools.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Trunk Tools do?
- Trunk Tools builds construction-specific AI agents that answer project-document questions and automate submittal, drawing, RFI and bid workflows.
- Who are Trunk Tools's investors?
- Trunk Tools's investors include Prudence, PruVen Capital Partners, Redpoint Ventures, Suffolk Technologies, Innovation Endeavors, Insight Partners, Liberty Mutual Strategic Ventures.
- How much funding has Trunk Tools raised?
- Trunk Tools has disclosed $40M raised across 1 of its 3 known rounds.









