Nemetschek is making the biggest bet in its history on the software that runs road, bridge, and utility jobs. The German contech group agreed to buy Heavy Construction Systems Specialists, better known as HCSS, from private equity firm Thoma Bravo for $2.4 billion. It’s the largest acquisition Nemetschek has ever done, and a clear sign that contech consolidation hasn’t cooled off.
What the HCSS deal gives Nemetschek
HCSS isn’t a household name outside heavy civil, but it’s deeply embedded in it. Founded in 1986 and based in Sugar Land, Texas, the company makes estimating, fleet, safety, and field-management software used by more than 4,000 contractors, and it employs over 550 people. Those are the firms pouring concrete and moving dirt on infrastructure jobs, exactly the market that federal and state spending has been feeding.
Why heavy-civil software is the prize
HCSS folds into Nemetschek’s Build & Construct segment, which already includes Bluebeam, GoCanvas, and Nevaris. The structure is a little unusual: Nemetschek will hold about 72% of that segment while Thoma Bravo keeps roughly 28% as a minority owner. So the seller isn’t fully walking away. The deal is expected to close in the second half of 2026, pending regulatory approvals.
The logic tracks with where contractors are spending. Estimating and field tools tied to infrastructure work are hot because the work itself is hot. It also fits a broader pattern of builders treating software as core, not a bolt-on, the same instinct behind McCarthy’s move to build its own AI with Palantir rather than rent someone else’s.
For a market that spent much of 2025 cautious on big deals, a $2.4 billion check says the appetite is back.