Six construction-technology startups raised $234M, and five of the six sell AI or robotics

Construction Dive counted $234 million across six contech rounds on 5 August 2026. TerraFirma took the largest share at $115 million, with Kleiner Perkins leading a $100 million Series A for AI-enabled preconstruction software and semi-autonomous heavy machinery. Arrakis raised $37.5 million across a $30 million Blossom Capital Series A and a $7.5 million Accel seed to embed AI agents in construction firms' industrial stacks. Gritt added $32.4 million led by Obvious Ventures for robotic arms retrofitted onto existing equipment such as skid steers, Monumental raised $32 million led by Khosla Ventures for automated bricklaying, Buildforce $10 million for tech-enabled electrician staffing, and SubBase $7 million for materials procurement.

What it means The money is going to retrofit and semi-autonomy rather than to fully autonomous machines — Gritt bolting arms onto skid steers a contractor already owns is the shape of the bet, and it is a far shorter path to a jobsite than a purpose-built robot.