Andrenam Lands $18M Series A for Maritime Sensing Network

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Andrenam, a maritime technology startup based in Hawthorne, California, has raised an $18 million Series A round to speed up production of its underwater sensing hardware. Upfront Ventures led the financing, which brings the company’s total funding to $30 million.

Valor Equity Partners, Also Capital, and First Round Capital also joined the round. The fresh capital is aimed at scaling manufacturing of the company’s flagship buoy system as demand from defense customers grows.

Andrenam is building a distributed network of underwater acoustic sensors called Pearl, paired with an AI analytics platform named Obsidian. Together the two are designed to detect, track, and classify underwater vessels in real time, closing a gap in wide-area maritime awareness that has been difficult to cover with existing tools.

The Pearl buoy has already logged more than 4,500 in-water hours and has started to gain traction through recent Navy contract awards. With the new money in hand, the company plans to ramp production so it can field more units at sea.

Andrenam was founded in 2024 by Matej Cernosek, a former SpaceX engineer who serves as chief executive, and Alex Chu, who leads the company as chief technology officer.