A2 Efficiency

A2 Efficiency is an energy consultancy focused on building energy efficiency across design, policy, and technology.

Architecture and Planning

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Headquarters: Santa Rosa, California, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range: 1 to 10Source: RevenueBaseRetrieved October 13, 2026
Founded: 2023Source: RevenueBaseRetrieved October 13, 2026
Published list appearances: 1 supported appearance ↗Source: RevenueBase lists

The company at a glance

What does A2 Efficiency do?

Its expertise spans building mechanical system efficiency, operational energy analysis, and building energy modeling. The company helps shape compliance pathways and identifies limits in modeling software.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

Who it serves

A2 Efficiency partners with architecture and engineering design teams, energy program planners, and policymakers.

What the business offers

Services & capabilities.

Operational energy analysis

The company’s expertise includes operational energy analysis.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

#24OF 25

United States

Energy modeling software companies

Snapshot: September 27, 2026

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A2 Efficiency

#24 Energy modeling software companies

Snapshot: September 27, 2026

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Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 3, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 27, 2026. How the company lists are built.

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