Eos Energy Enterprises, Inc.
Eos Energy Enterprises, Inc. (Nasdaq: EOSE) designs, develops, manufactures and sells zinc-based battery energy storage systems for utility-scale, microgrid, and commercial and industrial applications. Its Znyth™ systems use Z3 battery modules and are intended for long-duration storage, including renewable energy… From the company’s description.
Over the twelve months to Sep 30, 2026, Eos Energy Enterprises, Inc. reported revenue of $266.47M, up 319.9% from a year earlier, and net income of $237.76M. Its operating margin was −121.5%, and operations used $311.86M in cash. In fiscal 2025, it reported revenue of $114.20M, up 631.8% from fiscal 2024, and a net loss of $969.65M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Eos Energy Enterprises, Inc. does
In the company’s own words
Eos Energy Enterprises, Inc. (Nasdaq: EOSE) designs, develops, manufactures and sells zinc-based battery energy storage systems for utility-scale, microgrid, and commercial and industrial applications. Its Znyth™ systems use Z3 battery modules and are intended for long-duration storage, including renewable energy integration, grid congestion relief, and customer peak-demand management. The company also provides battery monitoring software, project management, commissioning, and maintenance services. Customers include utilities, independent power producers, renewable energy developers, industrial companies, and microgrid developers. Eos operates as one reportable segment and primarily serves the North American market. Its product portfolio includes DawnOS, a software platform for managing battery systems, and Eos Indensity, a modular storage architecture introduced in 2026. The company manufactures at a facility in Turtle Creek, Pennsylvania, and has a second Pennsylvania facility expected to become operational in 2026. At December 31, 2025, Eos had 787 full-time employees. Its website is https://investors.eose.com/.
Company details
- Sector
- Industrials
- Industry (SIC)
- Electronic Equipment
- Headquarters
- PITTSBURGH, PA
- Fiscal year end
- December
- CIK
- 1805077
- SIC
- 3690
Financial performance, year by year
Fiscal 2020–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Eos Energy Enterprises, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Eos Energy Enterprises, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Eos Energy Enterprises, Inc.’s bonds, as funds hold them
Funds report holding 2 issues of Eos Energy Enterprises, Inc.’s debt, $135.45M at market value — what funds hold, not the company’s total debt. Weighted-average coupon 1.78%, maturing 2030 to 2031.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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