Karos
Karos is a French carpooling app that uses machine learning and geolocation to match drivers and passengers. The company has raised $35M, most recently in a Series C round in November 2023, and employs 105 people.
The growth story
Karos grew from 35 to 105 employees between 2021 and 2026, raising $35M along the way, most recently a Series C in November 2023.
About
Karos operates a mobile app that connects drivers with passengers traveling similar routes, aiming to create a more efficient and eco-friendly transportation system. The platform uses machine learning and geolocation technologies to optimize matches and reduce travel costs.
The company has raised $35M across multiple funding rounds, including a Series C in late 2023. With 105 employees, Karos is scaling its operations to expand its carpooling network across France.
Founders and leadership
Karos is led by a team with backgrounds in technology and transportation. The largest function within the company is marketing, which comprises 8 employees. The organization spans multiple departments, including engineering, operations, and customer support.
The Karos org chart
Olivier Binet (Co-founder & CEO) leads 36 mapped leaders with 6 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Arts and Design 15 (-12% YoY), Business Development 13 (0% YoY), Engineering 12 (+20% YoY), Program and Project Management 10 (+67% YoY), Operations 8 (+14% YoY), Marketing 7 (0% YoY).
Talent flow
Karos recruits talent from diverse sources, including Thales, BlaBlaCar, and Google. Employees often come from top French schools like ESSEC Business School and EPITA. Alumni have moved on to roles at companies such as Groupe Luminess and Square Management.
Most common previous employers of Karos staff: Région Nouvelle-Aquitaine (3), Thales (3), BlaBlaCar (2), ESSEC Business School (2), EY Fabernovel, part of EY Studio+ (2), Google (2). Former Karos employees most often moved to Groupe Luminess (2), Sator (1), Estolosa (1), Raison (1), Koto (1), Square Management (1).
Alumni worth knowing
The Karos mafia
Karos alumni have founded several companies, including Raison (8 staff), Instansia (6 staff), Gaston (4 staff), and Repply (2 staff). These ventures span various industries, showcasing the entrepreneurial spirit of Karos's former employees.
4Thomas Sartori, was Board observer until 2021Amaël Cherfaoui, was Développeur back-end until 2024Christelle Clairville Pierre-Joseph, was Marketing & Communication Manager until 2020Alexandre J., was Machine Learning Engineer until 2018Web traffic
Traffic mix: 47% direct, 44% search, 1% social, 1% paid.
What this company is made of
Most common skills at Karos: English (31), Project Management (29), Teamwork (27), Management (22), Microsoft Office (21), Microsoft Excel (19), Sales (18), Prott (17).
Where the team actually sits
Karos people are concentrated in Île-de-France, France (29), Greater Paris Metropolitan Region (13), France (8), Occitanie, France (7).
Search footprint
Karos attracts about 17 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 0 ranking keywords and lost 3 in the last period.
What employees say
- Compensation
- 3.50 / 5
- Career opportunities
- 4.60 / 5
- Senior management
- 4.30 / 5
- Work-life balance
- 4.40 / 5
Frequently asked
Karos has 105 employees as of September 2026.
Karos has raised $35M in total, most recently a Series C round in November 2023.
Karos was founded in 2014 by Olivier Binet, Tristan Croiset.
Olivier Binet (Co-founder & CEO) sits at the top of Karos's reporting structure, with 6 direct reports.
The most common previous employers of current Karos staff are Région Nouvelle-Aquitaine (3 people), Thales (3 people), BlaBlaCar (2 people).
Former Karos employees most often move to Groupe Luminess (2), Sator (1), Estolosa (1).
At least 4 companies have a founder who previously worked at Karos, including Raison, Instansia, Gaston.
Karos attracts about 17 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among Karos staff are English, Project Management, Teamwork, Management, Microsoft Office.
Karos staff are concentrated in Île-de-France, France (29), Greater Paris Metropolitan Region (13), France (8).
Karos has about 15 people in Arts and Design, down 12% over the past year, as of September 2026.
Karos has about 13 people in Business Development, up 0% over the past year, as of September 2026.
Computed from 76 current and 148 former Karos profiles, as of September 2026. Source: Crustdata.
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