ConTech startups develop software, hardware, robotics, AI platforms, and materials solutions for construction, targeting building owners, infrastructure projects, contractors, and supply chains to improve productivity, safety, sustainability, and efficiency. Examples from 2025–2026 lists by Cemex Ventures and Built Offsite include Mastt's SaaS for project decisions, Apellix's UAVs for maintenance, Circularise's blockchain for material tracing, and Ception's AI for heavy equipment safety. These firms serve markets like energy, housing, and civil infrastructure, with technologies spanning no-code AI (Conxai), drone inspections (Hovering Solutions), and waste recirculation (Concular). Cemex Ventures, based in Madrid, Spain, publishes annual Top 50 reports assessing investments in categories such as green construction and supply chain agility. No specific founders, executives, funding rounds, or headquarters are verified for an individual entity named ConTech Startup across sources.