Side-by-side comparison of AI visibility scores, market position, and capabilities
Blueprint reuse platform for architects and structural engineers finding past design details; $17M Series A with 120% NRR serving 200+ firms competing with Autodesk for AEC drawing management.
Pirros is a construction technology company providing a blueprint and drawing management platform for architects, structural engineers, and construction firms — specifically enabling design professionals to find, reuse, and adapt relevant drawings and details from past projects rather than starting from scratch on each new project. Founded by structural engineers Ari Baranian and Peter Johann and backed by Y Combinator, Pirros raised $19 million total including a $17 million Series A in 2024, serving 200+ firms and achieving $3 million ARR with 10% month-over-month growth and 120% net revenue retention.\n\nPirros's platform serves as an intelligent drawing library and search system for engineering and architectural firms — practitioners search for specific design solutions (connection details, structural systems, specification sections) and find relevant drawings from past projects with intelligent filtering by building type, structural system, code version, and other parameters. Rather than each project starting from blank sheets or generic templates, engineers retrieve proven designs from their firm's institutional knowledge base. This reuse reduces drafting time, improves consistency, and prevents re-solving problems that the firm has already addressed on previous projects.\n\nIn 2025, Pirros competes in the AEC (architecture, engineering, construction) software market with Procore, Autodesk (AutoCAD, Revit, BIM 360), and BlueBeam for construction document management. The 120% net revenue retention rate indicates strong expansion within existing accounts — as more teams within a firm use Pirros and contribute drawings to the knowledge base, the value of the platform grows. The engineering firm market is highly relationship-driven, with word-of-mouth between structural engineering firms being an important growth channel. The 2025 strategy focuses on expanding beyond structural engineering to MEP (mechanical, electrical, plumbing) engineering firms, deepening AI search capabilities that surface the most relevant historical details for current projects, and growing from regional to national engineering firm adoption.
Construction payment rights and lien management software acquired by Procore; automates mechanics liens, preliminary notices, and lien waivers across all 50 US states, protecting contractors and subcontractors from non-payment in complex projects.
Levelset is a New Orleans-based construction payment software company acquired by Procore in 2021, providing mechanics lien management, preliminary notice automation, and payment rights protection tools for contractors, subcontractors, and suppliers in the construction industry. Founded in 2012 as zlien, the company built its product around the insight that lien rights—the legal tools that protect construction participants from non-payment—are chronically underutilized because the process of preserving them is complex, jurisdiction-specific, and deadline-driven. Levelset automates the preparation and delivery of preliminary notices, lien waivers, and mechanics liens across all 50 U.S. states, handling the jurisdictional variation that makes manual compliance extremely difficult for contractors working across multiple states.\n\nLevelset's platform covers the full payment cycle risk management workflow: from preliminary notice delivery at the start of a project through payment status tracking, lien waiver exchange, and mechanics lien filing when payments are disputed or delayed. The company also built a credit risk layer that provides payment history and credit data on general contractors and property owners, helping subcontractors assess payment risk before accepting project work. This financial intelligence capability, combined with payment rights automation, positions Levelset as a cash flow protection tool for the construction supply chain—a segment chronically affected by slow payment and project payment disputes.\n\nSince the Procore acquisition, Levelset has been integrated into the Procore construction management platform, enabling Procore users to access payment rights and lien management tools directly within their existing project management workflow. The combined offering strengthens Procore's value proposition for subcontractors, who have historically been less well served by construction project management platforms focused primarily on GC workflows. Levelset continues to operate as a standalone offering as well, serving contractors who do not use Procore.
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