About OptiMiser
Bill-calibrated audit software for the field and the program
OptiMiser builds energy audit software for contractors, weatherization crews, and utility programs — so field work finishes faster and savings claims hold up.
By the numbers
Proof from the work
340,000+
audits delivered
BPI-2400
aligned modeling
Since 2010
serving programs and contractors
Why bill calibration
Accuracy that matches how buildings actually use energy
- Models that match utility bills — not nameplate guesses alone.
- Real-time feedback so crews catch bad inputs before they leave the site.
- Defensible savings for programs that need BPI-2400, IRA HOMES, and WAP alignment.
Contractors were spending too much time collecting data and still getting inconsistent models. We built OptiMiser to use every available input, reduce guesswork, and give auditors real-time feedback from physics-based models — so crews finish faster and homeowners get better retrofit decisions.
OptiMiser Inside
Organizations running energy efficiency with OptiMiser
Green Homeowners United
NYSERDA
APS
Boston Housing Authority
PowerOptions
Next step
Talk with us or meet the team
Denver, CO · Kennebunk, ME · Charlottesville, VA · Austin, TX · Calgary, BC