RetroGreen Energy

What RetroGreen Energy does

RetroGreen Energy is a privately-held, for-profit energy management services company headquartered in Saint Cloud, United States, founded in 2009. Per the firmographic brief, the company delivers insulation, blower door testing, and energy audit services — three project-based, technically grounded offerings used by property owners, contractors, or small commercial clients seeking to assess and remediate building envelope performance. The company is led by founder and owner Chris Froelke, who has held that role since inception.

The firm operates at small scale, with between 11 and 50 employees per available data, which is consistent with a localized field-services operating model rather than a software or platform business. No further product detail, pricing mechanism, customer segmentation, geographic reach, or financial disclosure is present in the source material; the company's own website returned only a loading/verification page at capture, and no third-party revenue, funding, partnership, or technology-stack data could be extracted. Revenue is generated through delivery of services, with no SaaS, recurring subscription, or platform-economics indicated in the available data.

Name

RetroGreen Energy

Website

https://retrogreenenergy.com

Company type

Private

Founded year

2009

Headcount range

11–50 employees

Short description

RetroGreen Energy is a Saint Cloud, United States-based, privately-held energy management services company founded in 2009 that delivers insulation, blower door testing, and energy audit services to property owners and contractors.

Ownership category

akta.pro rank

Product category

Home Energy Efficiency Services

akta.pro primary industry

Energy Efficiency & Weatherization Retrofit (HSAPAEAF)

Keywords

• Home insulation services
• Energy audit services
• Blower door testing
• Weatherization services
• Building energy efficiency

Headquarters

HQ city

Saint Cloud

HQ country

United States

HQ region

North America

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Supply Chain, Technology or R&D

Core offering

RetroGreen Energy is an energy management company that provides residential building efficiency services, including insulation installation, blower door testing to detect air leakage, and energy audits. Founded in 2009 and based in Saint Cloud, Minnesota, the company focuses on diagnosing and improving the energy performance of homes.

Differentiator

Problem solved

Functional benefit

Products and services

• Insulation Services
• Blower Door Testing
• Energy Audit Services

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Recent moves1 record

Emerging players

• EnergySage: EnergySage operates an online marketplace connecting homeowners with vetted installers and contractors for solar, HVAC, and home energy improvements. It overlaps indirectly with RetroGreen by aggregating the same homeowners seeking energy-saving upgrades.

Broad incumbents

• Willdan Energy Solutions: Willdan provides energy efficiency program design, implementation, and weatherization services for utilities and municipalities nationwide. Comparable to RetroGreen in the energy efficiency services category but operating as a broad incumbent with multi-state reach.
• CLEAResult: CLEAResult is a large-scale energy efficiency program administrator that runs utility demand-side management programs, including residential audits and weatherization. It is a broad incumbent over the same end-market RetroGreen serves, but at portfolio scale across geographies.
• Lime Energy: Lime Energy (now part of Willdan) designs and implements utility-funded energy efficiency and weatherization programs for small businesses and residences, overlapping the same energy audit and retrofit market that RetroGreen serves.
• ICF International: ICF is a large consulting firm whose energy practice supports residential and commercial weatherization, utility programs, and demand-side management work. It interacts with the same homeowners and program funding pools as RetroGreen, though as a consulting/oversight layer rather than an installer.
• Franklin Energy: Franklin Energy delivers residential and commercial energy efficiency programs, weatherization services, and HVAC retrofits on behalf of utilities. It is comparable as a scaled weatherization contractor and program implementer in the same service category RetroGreen competes in.

Direct peers

• BlocPower: BlocPower retrofits residential and small commercial buildings with energy efficiency and electrification measures, using energy audits as the entry point. While historically focused on NYC, its model of audit-then-retrofit is directly comparable to RetroGreen's bundled service approach.
• Sealed: Sealed is a direct competitor that finances and delivers whole-home energy retrofits (insulation, air sealing, HVAC upgrades), targeting homeowners with an audit-led model—closely mirroring RetroGreen's insulation, blower-door testing, and energy audit services.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat1 record

Key risks6 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/retrogreen-energy

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RetroGreen Energy