Best Energy Storage Tech Companies in Illinois, United States
The 41 best Energy Storage Tech companies in Illinois, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Anovion.
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 Illinois
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Anovion Provider of synthetic graphite anode material | $117M | 37 mo ago | Funding Raised | — | Clay Kiefaber CEO | — | — | — |
| 2 | NanoGraf Developer of silicon-based anode materials for lithium-ion battery performance enhancement | $70M | 23 mo ago | Acquired | 40 | Samir Mayekar Co-Founder & CEO | Cart FunctionalitySquarespace CommerceSquarespace+19 | 65 patents High‑energy lithium‑ion battery anodes using silicon‑oxide/graphene composite materials. | — |
| 3 | NuCurrent Developer of chip modules for wireless charging 69Innovation top 10%Patents top 13%Funding top 17%Moat top 21% All 10 signals ▾Innovationtop 10% Patentstop 13% Fundingtop 17% Moattop 21% Techtop 39% Growthtop 43% Talentbottom 49% Marketbottom 41% Globalbottom 40% Newsbottom 22% Innovation: 728 patents (top 3% of patent-holders) · 541 filings since 2022 vs 133 in 2017-21 Patents: 728 patents matched (strict assignee match) · 541 filings since 2022 vs 133 in 2017-21 rank vs industry peers · Fliar Intelligence Index 69/100 | $22M | 11 mo ago | Series C | 37 37 → 45 (+22%) | Jacob Babcock CEO and Founder | WordPressMySQLPHP+33 | 728 patents Wireless power transfer integrated with data communication for industrial IoT sensors | 1 launch |
| 4 | Bedrock Developer of materials for sodium-ion batteries | $9M | 27 mo ago | Seed | — | Rafael Vila Co-Founder | — | 9 patents Patents concentrated in computing, sensing & instrumentation | — |
| 5 | Cache Energy Developer of ultra-long duration thermal energy storage for electrified heat | $8M | 26 mo ago | Seed | 8 | Arpit Dwivedi Founder | WordPressMySQLPHP+17 | — | 1 partnership |
| 6 | Buildings As Batteries Developer of thermal energy storage system for commercial building applications | $8M | 98 mo ago | Series A | — | Gregor Henze Co-Founder | — | — | — |
| 7 | Celadyne Manufacturer of nano based fuel cells | $5M | 30 mo ago | Seed | 8 | Gary Ong Founder & CEO | — | 3 patents Advanced ion‑exchange membrane technologies for electrochemical separation and energy devices | — |
| 8 | Volexion Developer of graphene encapsulation technology for lithium-ion cathode active materials | $3M | 14 mo ago | Seed | 5 | — | — | — | — |
| 9 | Athena Global Energy Solutions Provider of renewable energy and environmentally sustainable technology commercialization services | $3M | 155 mo ago | Seed | — | Robert Shambora CEO | — | — | — |
| 10 | AllCell Technologies Lithium-ion battery packs and thermal management solutions | $1M | 81 mo ago | Acquired | 30 | — | — | — | — |
| 11 | Everpurse Wire-free charging purses blending fashion and technology for the modern woman | $1M | 147 mo ago | Seed | 4 | — | — | 6 patents Inductive wireless charging mats for personal electronic devices | — |
| 12 | Midtronics Battery Management Solutions | $480K | 194 mo ago | Funding Raised | 145 145 → 224 (+54%) | — | Cart FunctionalityWooCommerceWordPress+38 | 259 patents Battery health monitoring and maintenance systems for electric vehicles and low‑voltage EV components | — |
| 13 | Celadyne Developer of advanced hydrogen membrane technology for fuel cells and electrolyzers | $450K | 3 mo ago | Seed | — | Gary Ong Founder & CEO | Webflow EcommerceWebflowPlausible+12 | 3 patents Advanced ion‑exchange membrane technologies for electrochemical separation and energy devices | — |
| 14 | blip Provider of smart energy storage solutions for residential building | $250K | 35 mo ago | Seed | 9 | Thibaut Feremans Co-Founder | Cart FunctionalitySquarespace CommerceSquarespace+11 | 4 patents Patents concentrated in electrical & electronics | — |
| 15 | Influit Energy Nanoelectrofuel technology for liquid fuel | $225K | 116 mo ago | Funding Raised | — | Carlo Segre Co-Founder & Chief Technology Officer | — | — | — |
| 16 | NETEnergy Provider of thermal energy storage solutions | $100K | 136 mo ago | Funding Raised | 6 | Said Al-Hallaj CEO | — | — | — |
Top 12 Energy Storage Tech companies in Illinois
#1
Series C · Chicago, Illinois · founded 2009 · 37 employees$22.1Mraised▾
NuCurrent is a fabless semiconductor company which develops high-efficiency antennas for wireless charging applications. It sells both pre-designed / customized antenna modules to OEMs to be integrated into their devices. Their product range also covers surface-mount inductors or induction heating coils.
- Sep 2025Series C$982.4K
- May 2024Series C$100K
- Sep 2023Series C$1.1M
- Nov 2022Series C$3.5M
#2
Acquired · Chicago, Illinois · founded 2012 · 40 employees$70.5Mraised▾
Developer of silicon-based anode materials for lithium-ion battery performance enhancement. The company’s technology aims to replace graphite anodes in lithium-ion batteries. This replacement is intended to improve performance for applications ranging from military to consumer uses. The silicon oxide-based anode materials are designed for extended electric vehicle range.
- Sep 2024Grant (prize money)$60M
- Jan 2023Series B$65M
- Jul 2020Grant (prize money)$1.6M
- Feb 2019Series A$5.5M
#3
Seed · Chicago, Illinois · founded 2013$449.6Kraised▾
Developer of advanced hydrogen membrane technology for fuel cells and electrolyzers. This technology improves fuel cell and electrolyzer efficiency and durability, lowering hydrogen production costs and expanding its use in defense, industry, and heavy-duty transport. The company offers membranes designed for both fuel cells and electrolyzers, addressing key challenges in hydrogen production and utilization. It also participates in collaborative initiatives to develop tailored electrolyzer solutions for various sectors.
- May 2026Seed$250K
- May 2025Grant (prize money)$199.6K
#4
Seed · Chicago, Illinois · founded 2018 · 5 employees$3.2Mraised▾
Developer of graphene encapsulation technology for lithium-ion cathode active materials. The company's composite material is commercially manufactured with bio-based capability. It offers cathode active material encapsulation delivering increased cycle life. The materials are drop-in and compatible with current and next-generation lithium-ion manufacturing. Applications include consumer electronics, electric vehicles, and next-generation materials.
- Jun 2025Seed$1.4M
- Mar 2025Grant (prize money)$1.5M
- Apr 2023Seed$961.2K
- Apr 2021Seed$2.2M
#5
Funding Raised · Chicago, Illinois · founded 2021$117Mraised▾
Provider of synthetic graphite anode material. It employs graphitization technology to produces high crystallinity and low impurities by heating the product at very high temperature.
- Jul 2023Grant (prize money)$117M
- 2021PE—
#6
Seed · Champaign, Illinois · founded 2021 · 8 employees$8.5Mraised▾
Developer of ultra-long duration thermal energy storage for electrified heat. The technology features a simple design with no moving parts in the charger or discharger. It offers flexibility, enabling storage from hourly to annually, providing resiliency, and tunable output temperature. The fuel material is stable, abundant, and does not react to flame, heat, or cold, allowing for room temperature storage. The system unfolds and sets up quickly and can integrate into existing processes. The fuel can be transported for charging and discharging at different locations.
- Jun 2024Seed$8.5M
- Jun 2023Seed—
- Sep 2022Seed—
- 2021Seed—
#7
Seed · Chicago, Illinois · founded 2023$9Mraised▾
Developer of materials for sodium-ion batteries. It designs, engineers, and manufactures sodium-ion cathode materials based on earth abundant metals.
- May 2024Seed$9M
#8
Seed · Chicago, Illinois · founded 2018 · 8 employees$4.6Mraised▾
Developer of nanocomposite membranes designed to be used in high-performance electrolyzes and fuel cells with simple heat and water management. The company's membrane uses various technologies to offer many benefits of a ceramic separator such as lower hydrogen crossover and also works at low humidity and elevated temperature conditions, enabling users to get hydrogen economy for better catalyst durability at a low cost.
#9
Series A · Chicago, Illinois · founded 2007$7.6Mraised▾
Developer of thermal energy storage system for commercial building applications. The system utilizes building materials as a thermal energy storage medium. It manages thermal load profiles to reduce energy consumption. The system aims to reduce carbon emissions as a byproduct.
- Jul 2018Grant (prize money)$1.1M
- Jul 2011Series A$7.2M
- Oct 2010Seed$450K
#10
Seed · Evanston, Illinois · founded 2020 · 9 employees$250Kraised▾
Provider of smart energy storage solutions for residential building. Its energy storage system store the energy when energy is cheap. It charges overnight when electricity is cheap and dispenses power during the day when electricity is expensive.
- Sep 2023Seed$150K
- 2022Seed$100K
- 2021Seed—
#11
Seed · Barrington, Illinois · founded 2013$2.5Mraised▾
Provider of renewable energy and environmentally sustainable technology commercialization services. It facilitates market access for technologies like advanced lithium polymer batteries and energy storage systems. The company also works with fixed and flexible solar technology, plus water purification technologies. It also offers sustainable fishing technology and other ancillary technologies.
- Sep 2013Conventional Debt—
- Sep 2013Seed$2.5M
#12
Acquired · Chicago, Illinois · founded 2001 · 30 employees$1.2Mraised▾
Lithium-ion battery packs and thermal management solutions. Batteries are protected by proprietary thermal management technology, which allows AllCell to produce lightweight and compact packs with extended cycle-life and safety. It manufactures Li-Ion batteries or multiple uses and in a completely scaled manner. The batteries are used by Utilities for Grid-level storage as well as custom solutions for specific requirements.
- Nov 2019Grant (prize money)$250K
- May 2012PE—
- Jun 2006Angel$1.2M
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 Illinois is moving
A read on the academic research around Energy Storage in Illinois — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 123 papers.
- University of Illinois Urbana-Champaign42
- Illinois Institute of Technology41
- University of Illinois Chicago18
- Northern Illinois University10
- Illinois State University4
- Electrolyte1→12
- Electrochemistry1→12
- Battery (electricity)2→9
- Anode1→6
- Supercapacitor1→4
- Renewable energy3→14
- Battery (electricity)4→10
- Electric power system3→7
- Grid1→5
- Electricity generation1→3
- Electrolyte4
- Hydrogen storage3
- Nanotechnology2
- Renewable energy2
- Electric power system2
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.