The man at the helm of Spear AI listens to the sea for a living
Most defense startups chase the visible: drones in the sky, satellites overhead, screens full of moving dots. Michael Hunter went the other way. He went down, into water, where the most important signal is sound and almost none of it has ever been labeled.
Spear AI, the company Hunter co-founded in 2021 and runs as CEO, is built on a single uncomfortable fact: the ocean is one of the loudest, messiest data environments on the planet, and the U.S. Navy has spent decades collecting acoustic recordings that no algorithm has properly read. Whales, weather, propellers, currents, machinery, and the occasional submarine all crowd the same channel. A trained human sonar technician can pick a thread out of that noise. There are not enough trained humans, and the recordings keep piling up.
Hunter's pitch is direct. Take that backlog of underwater sound, build the tools to label it cleanly, and you can train AI that helps the fleet hear what matters faster than any analyst working alone. The company calls the work maritime domain awareness. Stripped of the jargon, it is teaching software to recognize the difference between a biological click and a man-made one - and to do it on a sensor at the edge of the ocean, not in a data center a continent away.
He wrote targeting packages before he wrote a business plan
Hunter did not arrive at maritime AI from a computer science lab. He arrived from the field. He served as a Navy intelligence analyst and human intelligence specialist with the Office of Naval Intelligence's Trident office, the unit that handles some of the service's most sensitive collection work.
Then it got more direct. Hunter deployed to Baghdad with SEAL Team Two as a targeting officer - the person who turns scattered intelligence into a concrete picture of who, what, and where. He went on to support the Defense Intelligence Agency's field operations and Joint Special Operations Command. This is a resume measured in deployments, not job titles.
The pivot came in 2018, when Hunter served as a Navy projects lead on the Pentagon's Project Maven, the program that became shorthand for putting machine learning into the hands of the military. Maven is where a generation of defense technologists learned that the bottleneck is rarely the model. It is the data: who labels it, who owns it, and whether it is clean enough to trust. Hunter walked out of that experience and built a company around exactly that bottleneck.
Software, sensors, and the engineers who glue them together
Spear AI is not selling a single magic box. It sells three things that have to work together: software to make sense of maritime data, modular sensors built to be deployed fast in hard places, and the engineering services to wire it all into systems the Navy already operates.
Horizon
The platform for managing and labeling acoustic data so it can actually train AI. The unglamorous, foundational work - which is precisely why it matters.
Forerunner
Edge data processing for contested maritime and undersea environments, where you cannot assume a fast pipe back to a cloud that may not be there.
The customer list starts with the U.S. Department of Defense and the U.S. Navy, with stated ambitions to expand into commercial and international maritime markets. The strategy is unfashionably patient: own the data layer first, and the intelligence everyone wants becomes a byproduct rather than a promise.
A spy and a submarine commander walk into a company
Hunter did not build Spear AI alone, and the pairing is the point. His co-founder is John McGunnigle, a retired Navy submarine commanding officer and commodore with more than three decades of service - a man who commanded the USS New Hampshire, a Virginia-class fast-attack submarine, and led a submarine squadron.
Michael Hunter
Intelligence and targeting. The one who learned, in the field, that raw collection is worthless until someone makes it legible.
John McGunnigle
The undersea operator. Commanded a nuclear submarine and a squadron; knows what the sensors are actually for.
One man hunted with intelligence. The other commanded the platform doing the listening. Between them they cover both ends of the problem Spear AI is trying to close - which is a more honest founding story than most defense pitches manage.
Seed funding, and a deliberately quiet ambition
In July 2025, Spear AI closed a seed funding round co-led by Scare the Bear Capital and Cortical Ventures. The stated use of funds was unglamorous in the best way: grow the technical services and engineering teams so the company can help more partners build the data and AI capabilities they lack.
It is a telling choice. Plenty of defense startups raise to chase a flashy demo. Spear AI raised to hire the people who make the boring middle work - the integration, the labeling pipelines, the edge deployments. In a field crowded with promises about autonomy and AI, Hunter is betting on the part nobody wants to do.
A geography lesson in where the company lives
Spear AI keeps its headquarters in Washington, D.C. - close to the customer, close to the budget. But the other two offices tell you what the company actually is. Falmouth, Massachusetts and Groton, Connecticut are not tech hubs. Groton is the historic home of the American submarine force. These are Navy towns, chosen on purpose.
That is the texture of Hunter's company. The talent stack runs from Pentagon AI programs like Maven and Project Harbinger to people who have spent their lives near the water and the boats. It is a startup that smells more of salt than of Sand Hill Road, and that is the whole idea.