FuelCell Energy (FCEL) has a notably compact disclosed relationship map, and ExxonMobil (XOM) occupies the most interesting square on it. The filing identifies XOM as the company’s supplier, then names an ExxonMobil affiliate in a joint-development agreement. One company, two roles. Corporate org charts rarely miss an opportunity to make a sentence do double duty.

FuelCell Energy quantified revenue from that technology relationship in its March filing.

"Advanced Technologies contract revenues recognized under our Joint Development Agreement with ExxonMobil Technology and Engineering Company (“EMTEC”) were approximately $1.7 million, revenues arising from the purchase order received from Esso Nederland B.V.…"

FuelCell Energy, SEC filing, March 9, 2026

In plain English, the disclosed relationship touches both the buying side and the partnering side. The filing does not describe XOM as merely a vendor in one place and merely a collaborator in another. It places ExxonMobil-related entities across both categories.

The same relationship also appeared in an earlier filing with a different disclosed revenue figure.

"Advanced Technologies contract revenues recognized under our Joint Development Agreement with ExxonMobil Technology and Engineering Company (“EMTEC”) were approximately $3.1 million, revenues arising from the purchase order received from Esso Nederland B.V.…"

FuelCell Energy, SEC filing, September 9, 2025

That is the clearest concentration in the supplied map: one named supplier and one named partner, both connected to ExxonMobil. The map also shows a customer base built around projects and power agreements rather than a single named buyer.

FuelCell Energy describes the basic arrangement for its power purchase agreements this way:

"Power purchase agreements Under the terms of our PPAs, customers agree to purchase power or other value streams delivered such as hydrogen, steam, water, and/or carbon from the Company’s fuel cell power platforms at negotiated rates."

FuelCell Energy, SEC filing, March 9, 2026

The company names PW (PW) among those customers. It also disclosed $2.0 million of revenue under a sales contract with Ameresco (AMRC), tied to a 58.8-megawatt fuel-cell power plant platform in Korea.

"’s 58.8 MW fuel cell power plant platform in Hwaseong-si, Korea, and $2.0 million of revenue recognized under the Company's sales contract with Ameresco, Inc., which was entered into during the second quarter of fiscal year 2024, pursuant to which the Company…"

FuelCell Energy, SEC filing, September 9, 2025

Ameresco is therefore a specifically named sales-counterparty, while PW appears in the company’s broader PPA description. FuelCell Energy also disclosed a PPA with Eversource Energy (ES) and United Illuminating for a 7.4-megawatt carbonate fuel-cell system in Hartford, Connecticut. Eversource is separately listed as a distributor in the supplied relationship map, giving it more than one disclosed commercial connection.

"Generation Project in Process In January 2025, we entered into a PPA with Eversource and United Illuminating in Hartford, Connecticut, for a 7.4 MW carbonate fuel cell power generation system."

FuelCell Energy, SEC filing, December 18, 2025

Toyota Motor Corporation (TM) appears in a different lane. FuelCell Energy disclosed $6.3 million payable to Toyota Motor North America as of October 31, 2023, including $6.0 million classified as long-term. That is a disclosed customer-related obligation, not a generic name in a peer table.

Amalgamated Bank (AMAL) sits in the capital structure map. FuelCell Energy disclosed an OpCo financing facility involving a wholly owned subsidiary, and separately named AMAL as a lender. The same bank thus appears in the supplied data as both an investee-related entity and a lender.

"10.4 ​ Waiver, Consent, and Amendment Agreement, dated as of June 5, 2026, by and between Liberty Bank, in its capacities as administrative agent and lender, Amalgamated Bank, as lender, and FuelCell Energy Finance Holdco, LLC, as borrower."

FuelCell Energy, SEC filing, June 8, 2026

Finally, FuelCell Energy names American Superconductor (AMSC), Aspen Aerogels (ASPN), Ballard Power Systems (BLDP), Blink Charging (BLNK), Broadwind (BWEN), and ChargePoint (CHPT) in its 2025 peer group. Those are disclosed competitors, not counterparties to the operating contracts above. The resulting map is lopsided in a useful descriptive sense: ExxonMobil spans supplier and partner roles, Eversource spans customer and distributor roles, and Amalgamated spans financing and ownership-related disclosures.

These are relationships disclosed in SEC filings, mapped by jodie’s analytics. This is not investment advice.