25 Energy Efficiency companies in United States
25 Energy Efficiency companies in United States with 41 founders and decision-makers, led by San Francisco. 23 verified founder emails. Updated 2026-10-03.
Key findings
- FindMeMail tracks 25 Energy Efficiency companies in United States, with 41 founders and decision-makers listed.
- San Francisco is the top city, with 4 of them (16%), followed by Houston (2).
- The most common team size is 1-10 employees (92% of companies).
- 6 (24%) were founded in the last three years.
- 10 have a recorded funding round; the most common is Grant (3).
- 11 companies (44%) have at least one verified founder email, 23 verified emails in total.
Breakdown
Top cities
- San Francisco: 4 (16%)
- Houston: 2 (8%)
- Newark: 1 (4%)
- New York: 1 (4%)
- Marblehead: 1 (4%)
- Seattle: 1 (4%)
- Oakland: 1 (4%)
- Bend: 1 (4%)
Team size (employees)
- 1-10: 23 (92%)
- 11-50: 1 (4%)
- 1001-5000: 1 (4%)
Latest funding round
- Grant: 3 (12%)
- Pre-Seed: 2 (8%)
- Debt Financing: 1 (4%)
- Seed: 1 (4%)
- Venture - Series Unknown: 1 (4%)
- Equity Crowdfunding: 1 (4%)
- Series A: 1 (4%)
Founded (last 10 years)
- 2017: 2 (8%)
- 2018: 1 (4%)
- 2022: 1 (4%)
- 2025: 4 (16%)
- 2026: 2 (8%)
Recently added Energy Efficiency companies in United States
- Mini Split Advisor — Dayton, United States: Mini Split Advisor is an educational resource focused on helping homeowners understand ductless mini split HVAC systems.
- Ambeince — Seattle, United States: Ambeince develops an AI-driven commercial HVAC control system that delivers air quality, and lighting in office workspaces.
- Atlas Fusion — Bend, United States: Atlas Fusion is a technology firm that offers compact Z-pinch fusion reactor with AI-driven MMOS technology to deliver net-positive energy.
- AEX — Lewes, United States: AEX delivers modular AI tools for enterprise teams, allowing businesses to focus on strategy while our AI tools handles repetitive tasks.
- AICE Power — San Francisco, United States: Energy Management, Alerting, IoT Sensors, AI Automation, Building Efficiency, ClimateTech
- Onsite Utility Services Capital — Delavan, United States: Onsite Utility Services Capital provides energy efficiency solutions for businesses, schools, facilities, and institutions.
- Texas Electricity Ratings — Houston, United States: Texas Electricity Ratings is a customer advocacy site that features customer reviews and energy rates for deregulated energy markets
- Efficiency Vermont — Burlington, United States: Efficiency Vermont helps Vermonters reduce energy costs and improve home comfort through rebates, services, and advice.
- Conservation Solutions — Carlisle, United States: Conservation Solutions has provided customers with creative solutions to energy and water problems in their facilities and buildings.
- Figtree Financing — San Diego, United States: The Figtree OnDemandPACE Program provides PACE
- Green Energy Exchange — Austin, United States: Green Energy Exchange provides renewable electricity plans for homes and businesses.
- Slick Energy, Inc. — Marblehead, United States: SlickEnergy provides remote tank monitoring and annual tune-ups for energy efficiency. They offer 24/7 coverage and no-contract options.
- CarTwin — Houston, United States: CarTwin is a cloud-based, automotive technology company.
- ThermoSiv Technologies — New York, United States: ThermoSiv Technologies offers innovative heating solutions.
- Nuworld Energy — Newark, United States: NuWorld Energy is a solar power company that provides complete services and solutions for energy efficiency improvements.
- Rolling Motion Industries — North Babylon, United States: Rolling Motion Industries is a manufacturing company that provides customized transmission solutions to optimize operations for industries.
- ShineRetrofits.com — Denver, United States: ShineRetrofits.com is a supplier of energy efficient lighting systems.
- Deepaware AI — San Francisco, United States: Deepaware AI develops AI-powered monitoring and autonomous robotics systems to optimize data center operations.
- EcoFlow Tech — San Francisco, United States: EcoFlow provides designs, develops and manufactures eco-friendly and affordable portable power stations for personal and professional use.
- Kill Cliff — Atlanta, United States: Kill Cliff specializes in providing sports beverages, ready-to-drink beverages, recovery drinks, and energy drinks.
- Conduit Tech — Somerville, United States: Conduit Tech is a home design firm that provides custom 2D floorplans, as well as HVAC system design, sales, and installation services.
- StorEn Technologies — Stony Brook, United States: StorEn Technologies strives to bring proprietary real innovation to Vanadium Flow Batteries.
- HomeBoost — San Francisco, United States: HomeBoost operates as a home energy platform.
- SolarGaps — Redwood City, United States: SolarGaps is a smart blinds that generate electricity.
- UtilityAPI — Oakland, United States: UtilityAPI is a service that automatically collects utility bill and usage data from utility web portals. UtilityAPI is a mission-driven software company that…
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Frequently asked questions
How many Energy Efficiency companies in United States are there?
FindMeMail currently lists 25 Energy Efficiency companies in United States with at least one founder or decision-maker identified. The count updates daily as new companies are added.
Where are most Energy Efficiency companies in United States based?
San Francisco (4), Houston (2), Newark (1).
How do I contact founders of Energy Efficiency companies in United States?
23 verified founder emails are available for these companies on FindMeMail. Create a free account to get 50 free reveals, then buy one-time credit packs from $12.
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- E-Commerce companies in United States (1,545)
- SaaS companies in United States (1,304)
- Pre-seed startups in United States (1,096)
- Financial Services companies in United States (1,062)
- Manufacturing companies in United States (959)
- Consulting companies in United States (949)
- Internet companies in United States (824)
Methodology: counts include companies in the FindMeMail database with at least one identified founder or decision-maker. Data refreshes automatically as new companies are added.