Independent Cost Estimates for Every Stage of Design.

Independent Cost Estimates for Every Stage of Design.

Backbone Estimating delivers accurate, defensible cost estimates and bid reviews, backed by real field experience, for agencies, engineers, contractors, and owners.

Backbone Estimating delivers accurate, defensible cost estimates and bid reviews, backed by real field experience, for agencies, engineers, contractors, and owners.

Field-Backed Accuracy.

Our estimates come from professionals who have worked in the field, not just behind a desk.

Independent & Unbiased.

As a third-party estimator, we have no stake in the outcome—just the numbers.

Public Works Expertise.

We understand the compliance, documentation, and scrutiny that comes with public works projects.

Public Agencies

Engineering Firms

Contractors

Owners

Ready to see how we can help?

Contact us for a defensible, field-backed estimate you can trust.

Who We Serve

Public Agencies

Engineering Firms

Contractors

Who We Serve

Public Agencies

Engineering Firms

Contractors