Best Energy Companies in Maryland, United States
The 119 best Energy companies in Maryland, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: X Energy.
Our analysis of 171 Energy companies
$71.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy companies in Maryland
| # | Company | Disclosed funding | Last round | Employees | Founder | Stage | Founded | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | X Energy Developer of small modular & high temperature gas cooled nuclear reactor 84Patents top 11%Funding top 14%Product top 14%Growth top 17% All 11 signals ▾Patentstop 11% Fundingtop 14% Producttop 14% Growthtop 17% Innovationtop 20% Moattop 32% Techtop 36% Talenttop 38% Markettop 45% Globalbottom 49% Newsbottom 22% Patents: 1,201 patents matched (strict assignee match) · 615 filings since 2022 vs 342 in 2017-21 Funding: Raised $605M across 11 rounds · 11 rounds over 10 yrs (1.1/yr) rank vs industry peers · Fliar Intelligence Index 84/100 | $605M | 6 mo ago | 246 | Kam Ghaffarian Founder | Public | 2010 | — |
| 2 | Centrus Energy Supplier of uranium fuel | $402M | 19 mo ago | 63 | Daniel Poneman CEO & President | Public | 1998 | 1 job opening · 3 partnerships · 2 expansions |
| 3 | Competitive Power Ventures Develops and operates wind assets | $341M | 54 mo ago | 83 | — | Acquired | 1999 | — |
| 4 | Resource Energy Provider of tailored energy solutions for businesses to better control costs and minimize risk | $154M | 128 mo ago | 63 63 → 96 (+52%) | Scott Reinstein CEO | Series D | 2007 | — |
| 5 | Cube Hydro Partners Provider of hydroelectric power generation services | $140M | 127 mo ago | 113 | — | Acquired | 2015 | — |
| 6 | Direct Energy Solar Residential solar installation service provider | $111M | 143 mo ago | 82 | Joshua Goldberg Co-Founder | Series B | 2008 | — |
| 7 | SolarWindow Technologies Developing transparent electricity-generating coatings for glass and plastics | $36M | 90 mo ago | 3 | Jatinder Bhogal Chief Executive Officer | Acquired | 2003 | — |
| 8 | Renewable Energy Residential solar panel installer | $25M | 105 mo ago | — | Reidar Langmo Founder (ScanWafer) | Series B | 2009 | — |
| 9 | Sunstone Credit Developer of solar & wind energy projects | $24M | 40 mo ago | 13 13 → 29 (+123%) | Sumbul Alvi Co-Founder | Series A | 2021 | — |
| 10 | General Resonance Provider of research & development services for energy 24Funding bottom 45%Talent bottom 45%Global bottom 25% All 3 signals ▾Fundingbottom 45% Talentbottom 45% Globalbottom 25% Funding: Raised $13.8M across 1 rounds · 1 rounds over 15 yrs (0.1/yr) Talent: 1 named leader on record rank vs industry peers · Fliar Intelligence Index 24/100 | $14M | 179 mo ago | — | Juliana Mortenson Managing Director | Deadpooled | 2003 | — |
| 11 | Standard Solar Scaling renewables through development, funding, ownership, and operation of solar projects | $12M | 179 mo ago | 121 | — | Acquired | 2004 | — |
| 12 | Sunlogics Solar panel manufacturer and project developer | $8M | 178 mo ago | — | Satpal Sidhu CEO & President | Deadpooled | 2003 | — |
| 13 | ENVOCORE Provider of water-utility project development and electrical retrofitting services 29Talent top 32%Tech top 44%Funding bottom 45%Market bottom 39% All 6 signals ▾Talenttop 32% Techtop 44% Fundingbottom 45% Marketbottom 39% Globalbottom 29% Growthbottom 24% Talent: Analyst team rating 5/5 · 1 named leader on record Tech: 34 technologies across 4/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 29/100 | $5M | 120 mo ago | 44 | Stephen Troese CEO | Series A | 1993 | 1 job opening |
| 14 | TVIG Developer of wind energy projects | $4M | 178 mo ago | — | Peter De Vos chairman & ceo | Series A | 2002 | — |
| 15 | Enduring Hydro Online Toto Togel site with trusted Bandar Toto Macau services | $3M | 145 mo ago | — | Kristina M Johnson Founder & CEO | Series A | 2011 | — |
| 16 | Neighborhood Sun Community solar program developers | $3M | 36 mo ago | 37 | — | Series A | 2016 | 2 partnerships |
| 17 | Sunairio Developer of wind and solar energy projects | $2M | 18 mo ago | 7 | — | Series A | 2020 | 1 launch |
| 18 | Liatris Provider of data science and analytics services to pharmaceutical, biotech, chemical, cosmetic companies 4News top 44%Funding bottom 49%Moat bottom 42%Patents bottom 36% All 7 signals ▾Newstop 44% Fundingbottom 49% Moatbottom 42% Patentsbottom 36% Globalbottom 31% Marketbottom 18% Innovationbottom 4% News: 2 BI events in 12 mo (of 3 tracked, 2 types) · Top themes: Hiring Funding: Raised $1.0M across 3 rounds · 3 rounds over 5 yrs (0.6/yr) rank vs industry peers · Fliar Intelligence Index 4/100 | $1M | 17 mo ago | 9 | — | Seed | 2020 | — |
| 19 | Zymetis Provider of ventilation solutions and air filtration systems | $857K | 192 mo ago | — | Steve Hutcheson Founder | Deadpooled | 2006 | — |
| 20 | Antares Group Developer of solar and wind energy projects | $772K | 71 mo ago | 17 | — | Acquired | 1992 | — |
| 21 | Alpha Energy Developers of community scale renewable energy projects | $378K | 170 mo ago | 6 | David Murrin Chairman and Co-Founder | Funding Raised | 2008 | — |
| 22 | Hydrospark Manufacturer of micro hydroelectric energy system | $295K | 81 mo ago | 3 | — | Deadpooled | 2002 | — |
| 23 | Bahari Energy Innovating wind energy solutions for distributed generation in urban environments | $160K | 129 mo ago | 4 | — | Funding Raised | 2009 | — |
| 24 | Geothermal Developer of geothermal energy projects | $150K | 54 mo ago | 2 | J McDaniel CEO | Funding Raised | 2018 | — |
| 25 | Altenera Harness energy using vibrating reeds | $100K | 155 mo ago | — | Morris Kaplan Founder & CTO | Deadpooled | 2010 | — |
| 26 | I lighting Online lighting retailer enhancing homes with style, health, and well-being | $100K | 156 mo ago | — | Scott Holland Founder | Seed | 2005 | — |
Top 12 Energy companies in Maryland
#1
Public · Greenbelt, Maryland · founded 2010 · 246 employees$605Mraised▾
Developer of small modular & high temperature gas cooled nuclear reactor. It operates through tri-structural isotropic particle fuel. And also offers pebble bed nuclear reactor, zero emission energy, neutronics, and nuclear engineering services.
- Nov 2025Series D$700M
- Jun 2025Series C$22.8M
- Mar 2025PE—
- Feb 2025Series C$200M
#2
Public · Bethesda, Maryland · founded 1998 · 63 employees$402.5Mraised▾
Supplier of uranium fuel. The company supplies uranium fuel for commercial nuclear power plants and claims to have provided for its utility customers. They are also providers of advanced engineering services and claim to reduce the time, costs, and risks of developing and manufacturing complex engineered products.
- Nov 2024Post IPO$402.5M
- Dec 2010Grant (prize money)—
#3
Series A · Baltimore, Maryland · founded 2020 · 7 employees$1.8Mraised▾
Developer of wind and solar energy projects
- Dec 2024Series A$6.4M
- Mar 2024Grant (prize money)$275K
- May 2022Seed$1.8M
#4
Acquired · Silver Spring, Maryland · founded 1999 · 83 employees$341Mraised▾
Competitive Power Ventures is an electric power generation, development and asset management company. CPV a development arm of the company develops different wind portfolios across North America. The company's asset management division has operated more than 8,000 MWs of generation since 2001 and currently has 6,100 MWs under management. The company is headquartered in Silver Spring, Maryland, with offices in Braintree, Massachusetts, San Francisco, California, and Ontario, Canada.
- Dec 2021PE—
- May 2015PE—
- Aug 2014Conventional Debt$550M
- Sep 2013Conventional Debt$842M
#5
Seed · Bethesda, Maryland · founded 2020 · 9 employees$1Mraised▾
Provider of data science and analytics services to pharmaceutical, biotech, chemical, cosmetic companies
- Jan 2025Grant (prize money)$808.9K
- Jul 2021Seed$1M
- Jun 2020Grant (prize money)$225K
#6
Series A · Baltimore, Maryland · founded 2021 · 13 employees$24.5Mraised▾
Developer of solar & wind energy projects
- Jan 2023Series A$20M
- Feb 2022Seed$4.5M
- Series A—
#7
Series D · Ellicott City, Maryland · founded 2007 · 63 employees$153.6Mraised▾
Resource Energy provides tailored energy solutions for businesses to help them control costs, minimize risk, and manage sustainability. Founded in 2007, Resource Energy aims to build and maintain a team of energy experts dedicated to providing customized energy solutions for businesses.
- Oct 2015Series D$153.6M
#8
Acquired · Bethesda, Maryland · founded 2015 · 113 employees$140Mraised▾
Provider of hydroelectric power generation services. This entity operates hydroelectric facilities, producing electricity. The power generation process utilizes the natural flow of water to create electricity. The generated electricity is then distributed to consumers. The company focuses on efficient and reliable energy production from renewable sources.
- Nov 2015Conventional Debt$140M
#9
Series B · Annapolis, Maryland · founded 2008 · 82 employees$110.5Mraised▾
Direct Energy Solar offers solar installation services mainly in the residential space. 'Direct Energy' acquired Astrum Solar for $54m in July 2014 and renamed the company as 'Direct Energy Solar'. The company received a $500k grant form Howdy County in April 2015. Astrum Solar was founded in 2008 by Vadim Polikov, Joshua Goldberg & Benjamin Davis.
- Jul 2014PE$100M
- Nov 2013Series B$7.5M
- May 2011Series A$3M
#10
Acquired · Columbia, Maryland · founded 2003 · 3 employees$35.6Mraised▾
Developing transparent electricity-generating coatings for glass and plastics. The company focuses on creating innovative products that generate clean electricity and reward customers while benefiting the environment. Their core technology involves applying ultra-thin coatings to glass and plastic surfaces, transforming them into electricity-generating photovoltaic devices. This technology has applications in architecture, automotive, agrivoltaics, and transportation. The company aims to outperform traditional rooftop solar solutions by utilizing abundant materials and a liquid coating process suitable for high-speed production. The technology works in natural, shaded, low-light, and indoor light conditions. The company's team includes experts in business leadership, science, research, and engineering, with expertise in solar photovoltaics, manufacturing methods, reliability testing, and durability. The company is involved in B2B and B2C business model, and it is a tech company.
- Nov 2018Post IPO$25M
- Oct 2017Post IPO$2.6M
- Jun 2016Post IPO$3M
- Mar 2016Post IPO$1.4M
#11
Series A · Silver Spring, Maryland · founded 2016 · 37 employees$2.5Mraised▾
Neighborhood Sun is a social enterprise that develops community solar systems for providing cost-effective solar power to communities. The company handles the entire engineering, procurement, development, and maintenance of the solar power plants and handles customer acquisition as well.
- May 2023Series A$1.5M
- Jan 2022Conventional Debt$1.3M
- Mar 2020Series A$350K
- Aug 2018Series A$275K
#12
Series B · Lutherville Timonium, Maryland · founded 2009$25Mraised▾
Residential solar panel installer
- Sep 2017Series B$25M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Energy Storage in Maryland is moving
A read on the academic research around Energy Storage in Maryland — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 71 papers.
University of Maryland institutions lead Maryland's energy-storage research, focusing optimistically on advanced battery materials and technologies, with advancements and breakthroughs outweighing concerns 54 to 15.
- University of Maryland, College Park61
- University of Maryland, Baltimore County6
- University of Maryland, Baltimore4
- University of Maryland Extension1
- Electrolyte2→5
- Cathode1→3
- Battery (electricity)2→3
- Battery (electricity)3→6
- Electrolyte2→3
- Electrochemistry2→3
- Battery (electricity)8
- Electrolyte5
- Cathode4
- Nanotechnology3
- Anode3
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.