Best Energy Storage Tech Companies in Washington, United States
The 36 best Energy Storage Tech companies in Washington, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Group14 Technologies.
Our analysis of 50 Energy Storage Tech companies
$13.7b in tracked funding; 88% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Storage Tech companies in Washington
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Group14 Technologies Manufacturer of advanced silicon battery for clean energy solutions 67Funding top 16%Patents top 16%Innovation top 25%Growth top 38% All 11 signals ▾Fundingtop 16% Patentstop 16% Innovationtop 25% Growthtop 38% Talenttop 38% Moattop 44% Newstop 45% Partnerstop 45% Marketbottom 47% Techbottom 46% Globalbottom 44% Funding: Raised $683M across 9 rounds · 9 rounds over 7 yrs (1.3/yr) Patents: 185 patents matched (strict assignee match) · 159 filings since 2022 vs 26 in 2017-21 rank vs industry peers · Fliar Intelligence Index 67/100 | $683M | 12 mo ago | 213 213 → 248 (+16%) | Henry Costantino Co-Founder | WordPressApple iCloud MailGoogle Workspace+20 | Top 5M | 185 patents Advanced silicon‑carbon composite materials for high‑performance battery electrodes and gas sorption | — |
| 2 | BrightVolt Manufacturer of solid-state lithium-ion batteries | $115M | 59 mo ago | 12 | — | — | — | 23 patents Solid polymer matrix electrolytes for rechargeable lithium batteries and manufacturing processes | — |
| 3 | Modern Hydrogen Provider of hydrogen generation solutions | $73M | 21 mo ago | 63 | Max Mankin ex-Co-Founder & CTO | WordPressMySQLMariaDB+25 | Top 50M | 24 patents Local hydrogen production using combined combustion‑pyrolysis reactors with carbon capture. | — |
| 4 | Ossia Provider of wireless charging solution | $55M | 72 mo ago | 34 | Doug Stovall CEO | HubSpot CMS HubApple iCloud MailMicrosoft 365+17 | Top 10M | 601 patents Wireless RF power delivery and signaling systems for charging and communication devices | — |
| 5 | Electric Era Provider of end-to-end EV charging infrastructure | $33M | 13 mo ago | — | Quincy Lee Founder & CEO | WebflowApple iCloud MailGoogle Workspace+18 | Top 10M | — | — |
| 6 | Electric Era Provider of infrastructure and state-of-the-art high power battery storage | $24M | 30 mo ago | 9 | Elliot Owen Co-Founder | — | — | — | — |
| 7 | EnerG2 Provider of nano-structured material in energy storage systems | $24M | 164 mo ago | 27 | — | — | — | 88 patents Advanced carbon-based electrode materials for supercapacitors and hydrogen storage. | — |
| 8 | WiBotic Provider of wireless charging solutions for industrial robots | $11M | 21 mo ago | 30 | — | WordPress Block EditorWordPressApple iCloud Mail+20 | Top 10M | 29 patents Secure, navigable multi‑spot wireless charging systems for electric vehicles | — |
| 9 | Blue Tech Reimagine inventions, build companies, and solve global challenges | $10M | 122 mo ago | 53 | — | — | — | — | — |
| 10 | Peregrine Hydrogen Green hydrogen production | $8M | 14 mo ago | 6 | Stefan Omelchenko Co-Founder / VP of Operations and Strategy | — | — | 20 patents Advanced sulfur‑dioxide depolarized electrolyzers for low‑carbon hydrogen and acid production | — |
| 11 | FlexCharging Provider of electric vehicle charging solutions | $6M | 47 mo ago | 15 | Brian Grunkemeyer Founder & CEO | — | — | 18 patents Real-time EV charging control and demand‑response scheduling for smart grid integration. | — |
| 12 | LAVLE Provider of solutions for battery management system | $5M | 70 mo ago | 17 | Jason Nye CEO | — | — | — | — |
| 13 | Joule Case Manufacturer of lithium-based portable power stations | $2M | 52 mo ago | 25 | James Wagoner Pe CEO | Webflow EcommerceWebflowKnockout.js+22 | Top 5M | 32 patents Patents concentrated in electrical & electronics | — |
| 14 | BattGenie Provider of battery management solutions for Lithium-ion batteries | $2M | 49 mo ago | 8 | Chintan Pathak Co-Founder & CPO | — | — | 2 patents Battery management systems employing tanks-in-series modeling for charge/discharge control | — |
| 15 | Hive Battery Developer of software and equipment for electric vehicle battery manufacturing | $1M | 103 mo ago | — | Eric Din | — | — | — | — |
| 16 | Ecellix Developer of anode material intended for next-generation lithium-ion batteries | $1M | 86 mo ago | 12 | Jerry Schwartz CEO & Chairman | Founder | — | — | — | — |
| 17 | BlueDot Photonics Manufacturer of nanotech-enabled solar panels and photonic devices | $1M | 64 mo ago | 2 | Matthew Crane Co-Founder | — | — | — | — |
| 18 | STARS Technology Corporation Technology solutions provider for generating hydrogen from solar energy | $826K | 49 mo ago | 3 | Bob Wegeng Founder & President & CTO | — | — | — | — |
| 19 | XNRGI Developer of silicon chip-based lithium metal rechargeable battery technology | $150K | 178 mo ago | 1 | — | — | — | 8 patents Micro-scale porous wafer batteries and on-demand hydrogen fuel cells for portable power | — |
| 20 | AeonCharge App-based platform to locate electric vehicle charging points | $125K | 54 mo ago | 9 | Lin Fa Co-Founder & CTO | — | — | — | — |
Top 12 Energy Storage Tech companies in Washington
#1
Series D · Woodinville, Washington · founded 2015 · 213 employees$683.3Mraised▾
Manufacturer of advanced silicon battery for clean energy solutions. It provides users with a company offering silicon battery technology, aiming to create a world where everything that can run on rechargeable batteries does. The company's innovative silicon battery materials are poised to revolutionize the energy storage industry, driving the electrification of everything.
- Aug 2025Series D$463M
- Oct 2023Series C$34.3M
- Jul 2023Series C—
- Dec 2022Series C$214M
#2
Series A · Seattle, Washington · founded 2019$33Mraised▾
Provider of end-to-end EV charging infrastructure. Its offerings include installation, deployment, and management of battery-backed DC fast charging stations, accompanied by a software suite for real-time performance analytics, payments, and customer engagement. Its features encompass vertically integrated software control, proprietary battery energy storage to reduce grid demand, guaranteed 98 %+ uptime per port, and a 32″ customizable display for brand activation and loyalty programs.
- Aug 2025Series A$8.9M
- Jul 2023Series A$16.2M
- Mar 2021Series A$7.5M
- Jul 2020Seed$345K
#3
Series B · Bothell, Washington · founded 2015 · 63 employees$72.8Mraised▾
Provider of hydrogen generation solutions. This company is developing cutting-edge technology to locally decarbonize natural gas and produce clean hydrogen. It provides decarbonized natural gas and clean hydrogen for power generation, process heating, and space heating. The company's technology produces pure hydrogen inside a building or home while capturing emissions, which could aid in the decarbonization of heating systems.
- Nov 2024Conventional Debt$25M
- Mar 2023Series B$32.8M
- Dec 2021Series B$30M
- 2020Series A—
#4
Series A · Seattle, Washington · founded 2023 · 6 employees$7.8Mraised▾
Green hydrogen production. It provides thermodynamic and dual production approach solutions for the production of hydrogen.
- Jul 2025Series A$7.5M
- Jul 2024Grant (prize money)$500K
- Sep 2023Seed$7.8M
#5
Series A · Seattle, Washington · founded 2015 · 30 employees$10.8Mraised▾
Provider of wireless charging solutions for industrial robots. Their solution includes a development kit hardware for wireless charging, coupled with a wireless battery management system and fleet-level power management software. They have developed a proprietary Adaptive Wireless charging technology that provides a greater range of up to three times the diameter of the transmitting coil and efficiency. The product is currently available as a development kit which enables it to be integrated into robotic projects.
- Dec 2024Series A$2.7M
- May 2022Series A$2.1M
- Aug 2019Series A$5.7M
- Aug 2018Seed$530K
#6
Series A · Seattle, Washington · founded 2019 · 9 employees$23.9Mraised▾
Manufacturer of batteries intended to provide cost-effective energy management. The company's batteries prevent costly power draw from the grid when the power goes high, enabling clients to get access to simplified operations to accelerate commercial growth without intervention in their power use.
#7
Deadpooled · Redmond, Washington · founded 1998 · 12 employees$114.8Mraised▾
Manufacturer of solid-state lithium-ion batteries. It provides users with a company that specializes in the development and manufacturing of solid-state lithium-ion batteries, focused on providing efficient energy storage solutions.
- Oct 2021Series E$16M
- Sep 2016Series D$5M
- Dec 2015Series D$500K
- Feb 2015Series D$6M
#8
Series C · Bellevue, Washington · founded 2008 · 34 employees$54.6Mraised▾
Provider of wireless charging solution. It can charge devices as far away as 30 feet without a line of sight, in homes and offices. Its patented antenna technology automatically keeps multiple devices charged without any user intervention. This is achieved by using targeted RF waves to a specific location mobile device or any compatible consumer electronic for charging the unit. Offers a cloud-based software known as Cota Cloud that helps to manage connected devices.
- Aug 2020Series C—
- Jul 2020Series B—
- Jan 2018Series B$14M
- Jan 2016Series B—
#9
Series A · Redmond, Washington · founded 2017 · 15 employees$6Mraised▾
Provider of electric vehicle charging solutions. It provides telematics data and managed charging platform which is ready to help users to manage EVs to save money and reduce carbon emissions.
- Sep 2022Series A$5.9M
- Mar 2022Seed$50K
#10
Acquired · Seattle, Washington · founded 2003 · 27 employees$23.9Mraised▾
Provider of nano-structured material in energy storage systems. It provides users with a company that offers materials are used in ultracapacitors materials which are used in automotive industry for hybrid electric vehicles, by electronics manufacturers for enhancing the life and usability of consumer goods, and by a variety of industrial customers to improve energy efficiency.
- Dec 2012Series A$9.4M
- Apr 2010Series A$3.5M
- Apr 2010Grant (prize money)$21.3M
- Mar 2010Grant (prize money)$21.3M
#11
Seed · Seattle, Washington · founded 2014 · 25 employees$2.1Mraised▾
Manufacturer of lithium-based portable power stations. Its offerings include Control Module, Battery Module, Solar Module, and stackable systems. Its applications include residential power backup, recreational applications such as camping, commercial food trucks, industrial utilities, outdoor events, and much more.
- May 2022Seed$1.1M
- May 2021Seed$500K
- Aug 2020Seed$500K
- May 2020Conventional Debt$983.1K
#12
Seed · Seattle, Washington · founded 2017 · 8 employees$1.8Mraised▾
Provider of battery management solutions for Lithium-ion batteries. It uses porous electrode P2D models to simulate and control the battery.
- Aug 2022Seed$300K
- Apr 2022Grant (prize money)$300K
- Apr 2022Seed$1.5M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Storage Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Energy Storage in Washington is moving
A read on the academic research around Energy Storage in Washington — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 92 papers.
- University of Washington35
- Washington University in St. Louis18
- Washington State University17
- George Washington University10
- Washington State University Vancouver4
- Battery (electricity)1→8
- Battery (electricity)3→7
- Wind power1→4
- Anode1→4
- Cathode1→4
- Carbon fibers1→3
- Nanotechnology4
- Battery (electricity)3
- Electrolyte2
- Renewable energy2
- Electronics2
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.