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Angel Island Ferry, town of Tiburon named in $1.36M suit over unpaid work

ZeroMar is suing the Angel Island-Tiburon Ferry Co., Tiburon and state regulators, alleging $1.36 million in unpaid work on a ferry electrification project.

TED McDONNELL ARCHIVE / FOR THE ARK 2024The Angel Island-Tiburon Ferry Co.’s 400-passenger Angel Island pulls away from its Tiburon dock on May 3, 2024. San Rafael-based ZeroMar Inc. is suing the ferry company, its owner, the town of Tiburon and the California Air Resources Board, alleging it was never paid for converting the Angel Island and the water taxi Bonita to electric propulsion as part of a $24 million state grant.
Francisco Martinez
By FRANCISCO MARTINEZ · 1 min read

Marine electrification company ZeroMar is suing the Angel Island-Tiburon Ferry Co., owner Capt. Maggie McDonogh, the town of Tiburon and the California Air Resources Board, alleging it was never paid roughly $1.36 million for completed work or the $100,000 fee required to terminate its contract early.

The San Rafael-based company, formerly known as Green Yachts, filed the lawsuit April 1 in Marin County Superior Court over payments related to a $24 million grant the state agency awarded in 2024 to the town on behalf of the ferry company to help electrify its fleet.

ZeroMar was tasked with converting the diesel engines of the 400-passenger Angel Island and 98-passenger water taxi Bonita to electric propulsion, work the company says it completed but was never paid for. The suit alleges the town, ferry company and state agency failed to coordinate the payment process.

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A version of this story appeared in the April 15, 2026, print edition of The Ark. See something wrong? Request a correction.
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