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The World's Trusted Construction Estimating & Consulting Firm
Quantities, CPM Schedules, MEP Takeoffs & BIM modeling delivered with precision speed.
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Estimating
Cost EstimatingQuantity TakeoffResidential EstimatingCommercial EstimatingIndustrial EstimatingVirtual Bid ManagementGuaranteed SLA: 24–48 hour turnaround for bids under 100k SF.All Services Matrix
Engineering Excellence
Inside Keystone
Over 25+ years of delivering precise material takeoffs, bid strategy and project controls globally.
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About Our Firm Delivering accuracy that contractors trust on multi-million dollar bids.Our Purpose De-risking construction projects through engineering intelligence.Achievements $4.1B+ in total construction value successfully bid and completed.
Safety & Compliance Rigorous quality control check by senior professional estimators.
Global Reach
Global Office Network
Local estimating teams tuned to regional labor rates and CSI division standards.
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Services
Cost EstimatingQuantity TakeoffResidential EstimatingCommercial EstimatingIndustrial EstimatingCPM SchedulingBIM ModelingConstruction ManagementArchitecture DesignStructural EngineeringMEP EngineeringEarned Value AnalysisTime Impact AnalysisConstruction ClaimsInterior ArchitectureVirtual Bid ManagementAll services