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Karos runs a carpooling app and sells carpooling software to employers and local governments, mainly in France.
Karos is a French carpooling company. Its app connects people who are making the same commute so they can share a car instead of driving alone, and it also sells carpooling software that employers and local authorities hand to their own commuters.
The core idea is simple. Most cars on the road during rush hour have one person in them, which wastes money, fuel, and road space. Karos matches drivers with spare seats to riders heading the same way, and riders typically pay a small amount per trip. Drivers get help with costs, riders get a cheaper commute, and everyone gets a less lonely drive. The interesting twist is who actually pays. Karos makes much of its money not from riders but from organizations — companies that want to reduce parking pressure and meet green travel targets, and local governments that want fewer cars on their roads. Those bodies fund or subsidize carpooling for their employees and residents, and Karos provides the technology and matching to make it work. It competes with bigger names in French carpooling such as BlaBlaCar, but Karos aims at the everyday short commute rather than long intercity trips.
Karos is a private company, so it does not report public financials the way a listed firm would, and it has grown through partnerships with employers and regional transport authorities rather than splashy consumer marketing. That makes it a business-to-business and business-to-government play as much as a consumer app — its customers are institutions paying to change how their people get to work.
Saved answer · last researched 15 Nov 2026