Funding 6 min read

Perry Weather Raised $110M for the Least Glamorous Input in Construction AI

Silversmith Capital Partners led a growth investment in the Dallas company, which says 24 of the top 25 general contractors on ENR's Top 400 use it. No valuation disclosed, no round letter in the release itself, and a product that is mostly a weather station bolted to a decision rule.

A yellow tower crane standing against a sky of heavy grey cloud broken by patches of blue.

Perry Weather announced a $110 million growth investment on 9 September 2026, led by Silversmith Capital Partners, with participation from Arthur Ventures, which the release says led the company’s Series A and Series B. The Dallas company said it will add more than 50 roles through 2027 across software and hardware engineering, product, support and services at its headquarters.

A note on how to file this one. The release text — both on Perry Weather’s site and on Silversmith’s copy, which carries the 9 September date — calls the money a “growth investment” and never uses a round letter, discloses no valuation, and gives no total raised. Other outlets have filed it as a Series C: Dallas Innovates, the same day, headlined it “Dallas-Based Perry Weather Raises $110M Series C to Expand” and reported that “the new Series C round brings Perry Weather’s total haul to $131.35 million.” Those are figures the company has not itself published, and we flag them as reported rather than adopt them.

What the release does disclose is a claim that should stop anyone who covers construction software: “Perry Weather works with 24 out of the top 25 general contractors on ENR’s Top 400 list.”

A Hardware Company That Sells a Decision

Perry Weather sells on-site weather stations paired with cloud software: hyperlocal monitoring, automated alerts, and siren activation for lightning, heat, wind, air quality and other hazardous conditions. More than 3,000 organisations use it, the company says — school districts, cities, construction firms, manufacturers and professional sports leagues.

Strip that down and the product is a sensor, a threshold, and an action. Lightning inside a radius: stop work, sound the siren. Heat index above a trigger: mandatory break. Wind above a limit: the crane comes down. None of this is technically difficult in the way that reading a drawing set or reconstructing a site from video is difficult.

It is, however, the kind of thing construction has historically done badly — not for want of capability but for want of a defensible record. The decision to stop work costs money and is made under pressure by someone who will be asked to justify it. A system that makes the call automatically, from instrumented conditions, against a written policy, changes what that person is defending. That is a governance product wearing a hardware jacket, and governance products are stickier than their technical sophistication suggests.

Why This Is a Construction Story Now

Two things have converged.

The first is schedule. Weather is a major source of unplanned downtime on outdoor projects — this newsroom has not found a figure for how major that it would stand behind, so it is not quoting one — but the structural property is the interesting part: weather is the one input that progress-tracking and scheduling systems cannot infer from the site itself. It has to be measured or forecast. As construction planning gets more model-driven, the value of a precise, hyperlocal, timestamped weather record rises with it, because a schedule model that cannot distinguish a genuine weather day from an excused one is a schedule model contractors will argue with.

The second is regulation, where the picture is genuinely mixed and worth setting out. Colin Perry, the company’s founder and CEO, is quoted saying “Weather is getting more regulated and more disruptive every year, and the stakes are human lives.” The federal instrument in play is OSHA’s proposed heat injury and illness prevention standard, published on 30 August 2024. It has not been finalised. Employment law firm Ogletree Deakins assessed in April 2026 that “no further steps toward finalizing the rule have been taken since” the post-hearing comment period closed in October 2025, and that its path to finalisation “appears unlikely in the near term.” State-level rules are a different matter — California, for one, regulates outdoor heat illness prevention under Title 8, section 3395 of its code — but a federal standard, as of that assessment, does not exist.

So: patchwork at the state level, stalled at the federal one. That does not much weaken the commercial case — large contractors adopt controls ahead of mandates, and the liability exposure exists whether or not a federal rule does — but it changes what an investor is underwriting from compliance demand to insurance and schedule economics.

What the Company Reports

These are Perry Weather’s figures, from its own announcement, and are not independently verified here.

The company says it has “nearly doubled in revenue every year for six years.” Its site carries a customer case study on Holder Construction’s Project Red. On the use of the new capital, the release says Perry Weather “will leverage AI and their proprietary dataset to enrich regional and national forecast models that sharpen hyperlocal forecasts and always-on operational software so teams see weather coming sooner.”

That sentence is worth reading twice, because it describes something narrower than the phrase “AI-powered” usually signals. The claim is that a network of ground sensors across thousands of sites produces observations that improve model output locally — not that a model is replacing forecasting. It is the same structural argument being made across construction technology right now, and it is the honest version of it: the differentiator is the proprietary observation, and the model is what turns the observation into something sellable.

Sri Rao, Managing Partner at Silversmith, made the investor version: “Colin and his team have built the modern standard for weather safety, and AI is further accelerating what Perry Weather does so well: turning differentiated, real-time weather data into better decisions and translating those decisions into action across mission-critical operations and workflows.”

The Sensor Thesis, Again

This newsroom has now covered several versions of the same wager. Sensera Systems raised $27 million on the argument that once you own thousands of solar-powered site cameras, the durable value is in the software layer above them. GreenVibe raised $12 million for sensors that report concrete strength in real time. Our analysis of AI safety monitoring found the technology working and the adoption picture complicated, which remains the most accurate summary of the category.

Perry Weather is the version of this with the least interesting sensor and, on its own account, the widest distribution. If its ENR Top 400 claim holds, it has reached a level of penetration among the biggest contractors that none of the computer-vision companies covered here has publicly claimed — and it has done it in a category that gets a fraction of the attention. A $110 million cheque for that is not a bet on a breakthrough. It is a bet that an installed base in a boring category is worth more than a better model in a crowded one.

Whether it is a construction company is a fair question — schools and stadiums are clearly a large part of the business, and the release lists school districts, cities, manufacturers and sports leagues alongside contractors rather than leading with construction alone. But the contractor claim is the one the company chose to put in its announcement, and it is the number that makes this round relevant here.

What Is Not Known

Perry Weather disclosed no valuation, no revenue figure in dollars, no total raised to date, no round designation in the release text and no customer concentration. The Series C label and the $131.35 million total come from Dallas Innovates, not from the company. The ENR Top 400 claim is the company’s own and this newsroom has not verified it with ENR or with any named contractor. The revenue growth claim is likewise unverified and is not accompanied by a base.

The checkable facts are the $110 million amount, the 9 September date, Silversmith as lead, Arthur Ventures as participant, the Dallas headquarters and the stated hiring plan.