Darren Bechtel has watched construction tech grow from roughly a hundred startups to several thousand, and at the BuiltWorlds Paris Global Summit he gave Bricks & Bytes a blunt read on where the easy money is heading wrong. His verdict: a flood of AI-powered takeoff and estimating tools that demo beautifully and defend nothing. Here is the pattern he says it rhymes with, why construction keeps humbling outside founders, and the playbook that still builds a company worth buying.
When you have spent eleven years writing seed and Series A checks into construction tech, you develop a nose for the difference between a clever feature and a real business. Bechtel, founder and managing director of Brick & Mortar Ventures, has that nose. Sat down at the BuiltWorlds Paris Global Summit, he was asked what he sees too much of right now. He did not hedge.
His answer was AI-powered quantity takeoff and estimating tools. Useful technology, no argument there. The problem, as he tells it, is that a worrying number of founders seem to have fed a large language model a prompt asking what they could raise money on, and takeoff came back as the answer. The tools are real. The moats are paper thin. And he has watched a near-identical script play out before.
Whether you build, back, or buy in this space, his read doubles as a cheat sheet for telling a feature dressed up as a startup from a business that compounds.
Bechtel is not anti-AI. He is wary of undifferentiated AI sold at venture prices. The companies that last own a painful, specific workflow first, earn trust on the job site, then expand outward, and they build for an acquirer that may not even exist yet.
The AI takeoff rush rhymes with the drone era
A cool demo is not a moat
History does not repeat, Bechtel likes to say, but it rhymes. The last time a shiny technology had every founder scrambling to sell into construction, it was drones. Who could possibly need a view from the top more than a builder? Money flooded in, and a handful of drone startups reached valuations in the hundreds of millions.
Then he toured a marquee campus build that one of those startups was holding up as its star customer. The pitch had been photogrammetry, reality capture, a live 3D model checked against the project’s BIM to track progress. He asked the project manager about it, and the crew was using none of that. The site was so large it took about forty minutes to walk around, so each week they flew the drone up, snapped one aerial photo, printed it, and circled in marker where they had moved the portable toilets. The “toilet report.” A free byproduct of an expensive tool, not something anyone renews a six-figure license for.
That is the trap. Give a crew any tool they are paying for and they will find some use for it, but use is not need. Plenty of those drone companies later went through painful recaps. Bechtel’s worry is that the AI takeoff crowd is now raising more at higher valuations on the same thin premise, with little vision for the platform that is supposed to come next.
Construction punishes tech tourists
Why you cannot reskin another industry and call it ConTech
Construction sits at close to a sixth of global GDP and spent decades outside the innovation conversation. The lazy explanation blamed contractors for being slow, and Bechtel pushes back hard on that. The job site is the hard part. It changes day by day, often with limited or no connectivity, and you rarely know who is showing up until the morning of, a bit like a pickup soccer game where you still have to build something that has never been built before.
A tool that hums along in a commercial office can fall apart when you are putting up the first cell tower in a developing country. It has to deploy fast, cost little, and be simple enough to teach whoever turns up. PlanGrid was one of the first to prove the field was ready for purpose-built software, and a long line of companies learned the hard way that taking a product from another vertical and painting it yellow and black does not make it a construction solution.
Trust is the other wall. Builders are in the business of managing risk and sniffing out a sales pitch, and if you are too polished, they trust you less. That is why an incumbent with an existing brand can move buyers a no-name startup cannot, whether it is Hilti making its first software purchase or Schneider Electric buying its way in. Our own read on the Autodesk and Rhumbix deal landed on the same lesson Bechtel keeps returning to: build around painful recurring workflows, not abstract AI positioning.
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The boring wedge that grows into a platform
The pattern that actually builds something durable is unglamorous. Own one nuanced, painful job, then earn the right to expand. Levelset did exactly that with mechanics liens and lien waivers, a task that one specific person in the office is responsible for. Crucially, the person signing the contract is usually not the person using the tool, so a product that the lien clerk genuinely loves becomes the internal proof that unlocks the budget conversation.
Nothing gives a project team more heartburn than someone walking in and saying, I have got the AI-enabled operating system for you, can we get everyone in a room.Darren Bechtel, Brick & Mortar Ventures
From that beachhead you spread across the floor. Win the lien desk, notice you sit next to accounting, push into supply chain or materials finance, then start seeing enough of a customer’s risk that insurance becomes a real line of business. Bechtel pointed to Early Trade, which just closed its Series A led by S3 Ventures and his own firm, as a company building toward what he calls modern finance operations for construction. Its wedge is narrow on purpose, early payments for subcontractors, but the market underneath it is huge.
The exit is still an acquisition, not an IPO
Build for the buyer who has not shown up yet
Founders dream of ringing the bell. The data points somewhere quieter. Procore is close to a sample size of one for a true US construction software IPO, which means the realistic path to a life-changing outcome runs through M&A. The leaderboard tells the story: Autodesk’s appetite swallowed PlanGrid and later Rhumbix, Procore bought Levelset, Hilti acquired Fieldwire in its first software deal, and the new high-water mark is Autodesk’s roughly $3.6 billion purchase of MaintainX, the biggest acquisition in the company’s history.
| Company | Acquirer | Approx. value | What it did | What it signals |
|---|---|---|---|---|
| PlanGrid | Autodesk | $875M | Field drawings and docs | Purpose-built field tools can win big |
| Fieldwire | Hilti | Undisclosed | Field management | A trusted brand can sell software too |
| Levelset | Procore | $500M | Lien and payment rights | A narrow wedge becomes a platform piece |
| Rhumbix | Autodesk | Undisclosed | Field labor and production data | Workflow data beats abstract AI claims |
| MaintainX | Autodesk | $3.6B | Maintenance and operations | Operations data is the new prize |
That reality shapes how Bechtel runs money. He sets his funds up to hit top-quartile returns off mid-nine-figure exits rather than gambling everything on a unicorn listing. A few hundred million is a rounding error to a multi-billion-dollar fund, but a serious win for a focused fund with real ownership. For founders, the takeaway is sharp: build something an acquirer would genuinely want, without selling exclusivity to one customer and shrinking your pool of buyers. We dug into that liquidity picture in our look at construction tech exits and the M&A versus IPO question.
His parting logic is almost old-fashioned. Companies do not get sold, they get acquired. Build something customers love, keep the culture that retains your best people, stay in the black, and you earn the right to choose your own ending. The flashy raise is not the achievement. The enduring business is.
Darren Bechtel is the founder and managing director of Brick & Mortar Ventures, a San Francisco-based venture firm focused solely on construction and built-environment technology. The firm invests at the seed and Series A stage, typically writing checks of $1 million to $4 million, and counts major construction industry corporates among its backers. Bechtel is a member of the family behind the global engineering and construction firm Bechtel, though that company is not an investor in his fund. (Source)
Both waves attracted heavy funding on the strength of a cool demo rather than a defensible business. He recalls drone startups reaching valuations in the hundreds of millions, only for many to need recapitalizations once customers used the tools for trivial tasks rather than the high-value workflows in the pitch. He sees the same risk in AI-powered takeoff and estimating tools that raise at high valuations without a credible plan to expand into a wider platform. The lesson echoes our own coverage of why workflow depth matters more than AI branding. (Source)
The wedge strategy of nailing one painful workflow and expanding outward is proven, but it only works if there is a real plan to expand. Bechtel’s concern is that too many founders treat the easiest way in as the whole strategy, with no vision for the adjacent products that turn a feature into a platform. A narrow tool with no expansion path is just a feature, and features rarely justify venture-scale valuations.
Public-market exits remain rare in the sector, with Procore close to a sample size of one for a true US construction software IPO. With few public comparables, the realistic route to liquidity runs through acquisition by larger strategics like Autodesk, Procore, Trimble, and industrial players moving into software. That pushes investors and founders to build companies that are attractive acquisition targets rather than betting on a listing. (Source)
Autodesk agreed to acquire MaintainX, a mobile-first maintenance and operations platform, for approximately $3.6 billion, the largest acquisition in Autodesk’s history. The deal extends Autodesk’s reach into the operations stage of the building lifecycle and signals that structured operational data has become a strategic prize for the platform incumbents. It also resets the ceiling for what a construction-related software exit can be worth. (Source)
Bechtel points to Early Trade, a subcontractor payments marketplace his firm co-led a Series A into alongside S3 Ventures. It starts with one narrow, painful job, getting subcontractors paid early, and is building toward a broader finance operations layer for construction. The company reports more than 211,000 subcontractors on its network and over $3 billion in early payments facilitated globally, which shows how a focused wedge can sit on top of a very large market. (Source)
Brick & Mortar Ventures, team and firm profile
BuiltWorlds 2026 Paris Global Summit
Earlytrade raises $25M Series A, PRNewswire
Autodesk to acquire MaintainX for $3.6B, Construction Dive
Brick & Mortar fund close, TechCrunch
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