Piper

Piper is the AI Operating System for Preconstruction.

Piper proactively drives estimating and preconstruction forward using your project context, company knowledge, and proven workflows, so your team can move faster, get more specific, and catch what others miss. It is built for general contractors' estimating and preconstruction teams.

The problem Piper was built for

Too much preconstruction time is spent assembling information, not improving the work. Days are lost finding, extracting, and reconciling information across drawings, specifications, addenda, quotes, schedules, and spreadsheets. Historical costs, company standards, and lessons learned remain scattered across files and people. Senior team members cannot personally review every scope, bid, estimate, schedule, and project decision. Piper turns that fragmented process into a repeatable preconstruction system.

How Piper works

Unify the project. Piper brings drawings, specifications, addenda, subcontractor quotes, estimates, and spreadsheets into one connected project context, so the package is understood together rather than file by file.

Apply your company knowledge. Piper combines the live project with your historical data, templates, standards, and expert checks, so the way your company builds and bids is applied to every new pursuit.

Produce and verify the work. Piper produces scopes, bid leveling sheets, estimates, and project reviews in your own formats, with every finding linked to its source, so anything Piper surfaces can be traced back to the drawing, specification clause, or addendum it came from.

What teams use Piper for

Scope Generation. Know exactly what you're asking each trade to carry. Piper turns drawings, specifications, addenda, and company standards into source-backed trade scopes.

Bid Leveling. Know what you're actually carrying. Piper compares subcontractor bids against the intended scope so the low number does not hide an expensive gap.

Final Bid Review. Challenge the estimate before you stand behind it. Piper reviews the estimate against the project behind it and focuses senior attention on what still deserves judgment.

Survey. Ask the right questions on every project, and make the next one better. Piper turns your company's experience into a repeatable survey that captures what the team learns.

What changes for the team

More time for judgment. Document review, extraction, and cross-checking are automated so estimators can focus on scope, pricing, subcontractors, and risk.

Company knowledge that compounds. Historical bids, costs, standards, templates, and lessons learned are brought into every new estimate rather than sitting in files and in people's heads.

Consistent expert review. Your company's best questions and checks are applied across every scope, quote, and estimate before submission, not only on the pursuits a senior reviewer has time for.

Who Piper is for

Piper is built for general contractors, and specifically for the preconstruction, pursuit, and estimating teams that assemble bid packages, send scopes to trades, level subcontractor quotes, and stand behind a final number. It sits on top of the documents and the company knowledge those teams already have, rather than asking them to change how they work: outputs come back in your own formats, and every finding is linked to its source so it can be checked rather than taken on trust.

Piper removes busy work from the critical path and turns the package into decision-ready, source-linked clarity.

Piper was founded in 2025 and is based in New York, New York, United States.