Best Energy Companies in Phoenix, United States
The 59 best Energy companies in Phoenix, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Depcom Power.
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 Phoenix
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Depcom Power Utility-scale solar and energy storage solutions provider, delivering lasting energy solutions | $20M | 117 mo ago | Acquired | — | 2013 | WordPressMySQLPHP+23 | — | — |
| 2 | SNTech Organizer of live music events in small venues 27Innovation top 30%Patents top 32%Moat top 45%Funding top 48% All 8 signals ▾Innovationtop 30% Patentstop 32% Moattop 45% Fundingtop 48% Talentbottom 45% Globalbottom 37% Newsbottom 24% Marketbottom 12% Innovation: 53 patents (top 30% of patent-holders) Patents: 53 patents matched (strict assignee match) · Latest publication 2018 rank vs industry peers · Fliar Intelligence Index 27/100 | $16M | 151 mo ago | Series A | Shannon Bard CEO | 2007 | — | 53 patents Advanced motor control, communication, and sensor integration for pump and drive systems | — |
| 3 | SinglePoint Mobile payment and marketing solution provider | $14M | 26 mo ago | Public | Wil Ralston Chief Executive Officer | 2011 | WordPressMySQLPHP+31 | 6 patents Secure digital data authentication and validation for communication networks | — |
| 4 | Nuclearn Provider of artificial intelligence solutions tailored for nuclear facility operations | $2M | 11 mo ago | Series A | Bradley Fox Co-Founder & CEO | 2020 | WordPressApple iCloud MailGoogle Workspace+22 | — | — |
| 5 | Delta International Oil and Gas Oil and gas exploration and production company | $2M | 206 mo ago | Public | — | 1999 | — | — | — |
| 6 | Proteum Energy Manufacturer of renewable energy semiconductor 45Talent top 38%Funding bottom 42%Global bottom 36% All 3 signals ▾Talenttop 38% Fundingbottom 42% Globalbottom 36% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $850k across 2 rounds · 2 rounds over 3 yrs (0.7/yr) rank vs industry peers · Fliar Intelligence Index 45/100 | $850K | 24 mo ago | Seed | Laurence Tree II Co-Founder & CEO & President | 2020 | — | — | — |
| 7 | Higher Wire Manufacturer of lithium-ion batteries for stationary and mobile energy storage | $268K | 36 mo ago | Seed | Trevor Warren Founder & CEO | 2021 | PageFlyCart FunctionalityShopify+30 | — | — |
| 8 | ISA Industries Developer of alternative energy technologies for energy independence. | $146K | 69 mo ago | Seed | Hunter Bjork CEO | 2016 | — | — | — |
Top 11 Energy companies in Phoenix
#1
Series A · Phoenix, Arizona · founded 2020 · 6 employees$2.5Mraised▾
Provider of artificial intelligence solutions tailored for nuclear facility operations. The company offers automation, generative AI, and analytics designed for daily workflows. Its platform automates condition report coding, screening, trend detection, and safety documentation. The AI models are trained on nuclear-specific procedures, reports, and regulatory data. The company supports on-premise and secure cloud deployments, meeting export control and regulatory requirements. The AI can be fine-tuned to specific procedures and workflows.
- Jul 2025Series A$10.6M
- Aug 2023Seed$2.5M
#2
Public · Phoenix, Arizona · founded 2011 · 100 employees$14Mraised▾
SinglePoint is a mobile technology & mobile marketing provider. Provides solutions that allow the clients to conduct business transactions, accept donations, and engage in targeted communication through mobile devices. SungleePoint products connect small to mid-size companies to their target markets by providing mobile technology
- May 2024Post IPO$1M
- Mar 2021Post IPO$2M
- Feb 2021Post IPO$900K
- Nov 2018Post IPO$5M
#3
Seed · Phoenix, Arizona · founded 2020$850Kraised▾
Manufacturer of renewable energy semiconductor
- Jul 2024Seed$350K
- Aug 2023Seed$500K
#4
Acquired · Phoenix, Arizona · founded 2013 · 101 employees$20.4Mraised▾
Utility-scale solar and energy storage solutions provider, delivering lasting energy solutions. The company is a trusted leader, providing proven solutions across the project lifecycle. With deep technical expertise and financial strength, they offer development support, engineering, procurement, construction (EPC), plant services, and field services. They support complex, large-scale PV and battery energy storage (BESS) projects, working with utilities, IPPs, and large energy users. The company delivers fully integrated EPC and lifecycle services, focusing on long-term operations. They are committed to optimizing energy cost, performance, and reliability, offering innovative solutions for a sustainable energy future. They are a B2B company, providing renewable energy solutions, project management, and long-term service agreements.
- Sep 2016Series B$15M
- 2016Angel—
- May 2016Series A$875K
- May 2015Series A$950K
#5
Series A · Phoenix, Arizona · founded 2007 · 6 employees$16.5Mraised▾
Organizer of live music events in small venues. It provides a platform for bands to perform and offers a unique experience for music lovers. The organization manages all aspects of the events, including booking artists, venue selection, and promotion. It also facilitates volunteer opportunities and secures sponsorships to support its operations. A focus is placed on fostering a vibrant and engaging atmosphere for both performers and attendees.
- Dec 2013Conventional Debt$500K
- Nov 2011Series A$14.8M
- Apr 2011Seed$900K
- Feb 2011Seed$750K
#6
Seed · Phoenix, Arizona · founded 2021 · 2 employees$268Kraised▾
Manufacturer of lithium batteries intended to reduce their environmental impact. The company's batteries use domestically-sourced components, their patent-pending process gives new life to old batteries, enabling users to use environment-friendly batteries.
- Jul 2023Grant (prize money)$199.2K
- Jun 2023Seed$268K
- Jun 2022Grant (prize money)$1.2M
#7
Public · Phoenix, Arizona · founded 1999 · 2 employees$2Mraised▾
Delta International Oil and Gas is a US-based publicly listed oil and gas company. The company focuses on the exploration and production of oil and gas. Until 2017, the operations of the company were focused in Argentina, however, the company shifted the focus to the continental US.
- Apr 2009Post IPO$1.3M
- Nov 2006Post IPO$745K
- Aug 2003Post IPO$35K
#8
Seed · Phoenix, Arizona · founded 2016 · 39 employees$146.5Kraised▾
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- Sep 2020Seed$189K
- Sep 2020Conventional Debt—
#9
Funding Raised · Phoenix, Arizona · founded 1886—raised▾
Provider of electricity and related energy services. It offers residential and business electricity plans, billing and payment options, and energy-saving programs. Services include outage reporting, assistance programs for customers facing financial hardship, and support for energy efficiency improvements in homes and businesses. The company also engages in initiatives related to wildfire prevention and sustainable energy practices.
#10
Late Stage · Phoenix, Arizona · founded 1996 · 400 employees—raised▾
Provider of solar energy operation & maintenance services
- May 2014PE—
#11
Acquired · Phoenix, Arizona · founded 1911—raised▾
Provider of LED lighting and smart home solutions. The company designs, manufactures, and distributes a wide array of LED lighting products, encompassing various shapes, styles, and functionalities. Their offerings extend to smart home technology, including smart bulbs, fixtures, and control systems. These products are designed to enhance both the aesthetics and functionality of residential and commercial spaces. The company also provides support and resources for its products.
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 Grid Energy Storage is moving in the United States
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 5,941 United States-affiliated papers.
- Electric Power Research Institute204
- Pacific Northwest National Laboratory202
- Argonne National Laboratory193
- Northeastern University151
- Massachusetts Institute of Technology124
- Battery (electricity)57→359
- Electrolyte37→318
- Electrochemistry30→240
- Cathode32→224
- Anode37→209
- Renewable energy40→492
- Battery (electricity)59→507
- Power (physics)8→227
- Electrolyte27→244
- Electrochemistry37→240
- Battery (electricity)35→184
- Renewable energy24→156
- Electrolyte13→114
- Electrochemistry10→80
- Cathode9→72
Where energy storage is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing energy storage patents in the United States
United States energy storage patent filing is accelerating — 8,522 filings from 3,681 assignees (2016–2025), led by General Electric, ESS Technology, GM Global TECH Operations; annual filings 687→1058.
- General Electric592
- ESS Technology276
- GM Global TECH Operations233
- Fastcap Systems205
- UNIV California180
- Rondo Energy157
- United Technologies154
- Battelle Memorial Institute146
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.