Sereact
Sereact develops AI software for autonomous robotics in warehouses, automating pick-and-place processes. The Stuttgart-based company, founded in 2021, has raised $147M and employs 98 people.
The growth story
Sereact grew from 4 to 98 employees between 2021 and 2026, raising $147M along the way, most recently a Series B in April 2026.
About
Sereact builds AI systems that enable robots to perceive and interact with their environment autonomously, focusing on warehouse logistics. Their software automates pick-and-place tasks to improve supply chain efficiency.
The company has raised $147M, including a Series B round in April 2026. With 98 employees, Sereact has attracted talent from robotics leaders like Covariant and Mercedes-Benz.
Founders and leadership
Engineering is Sereact's largest function, with 36 employees. The company has a median tenure of 1 year, indicating a relatively young workforce.
The Sereact org chart
Ralf Gulde (Co-Founder & CEO) leads 28 mapped leaders with 2 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 37 (+16% YoY), Information Technology 17 (+89% YoY), Sales 10 (+150% YoY), Business Development 7 (+40% YoY), Education 6 (+100% YoY), Operations 4 (+33% YoY).
Talent flow
Sereact recruits heavily from Covariant, Mercedes-Benz, and academic institutions like the University of Stuttgart. Alumni have moved to robotics startups and tech companies, including Humanoid and n8n.
Most common previous employers of Sereact staff: Covariant (8), University of Stuttgart (4), Mercedes-Benz (4), Fraunhofer IPA (4), Festo (3), Amazon Fulfillment Technologies & Robotics (3). Former Sereact employees most often moved to Humanoid (2), Salesatstartups.com (1), Postelix (1), L-One (1), Mercedes-Benz (1), n8n (1).
The Sereact mafia
Sereact alumni have founded three companies, including OpenMind Robotics and Postelix, with small teams ranging from 1 to 3 staff members.
3Tri Bien Minh, was Robotics Software Engineer until 2025Seth DeHart, was Advisor until 2024Julian Meinke, was Marketing Director until 2026Hiring now
Web traffic
Traffic mix: 61% direct, 27% search, 0% social, 0% paid.
What this company is made of
Most common skills at Sereact: Python (Programming Language) (41), C++ (31), Machine Learning (29), Robot Operating System (ROS) (27), Robotics (26), Project Management (25), English (24), Leadership (23).
Where the team actually sits
Sereact people are concentrated in Baden-Württemberg, Germany (27), Germany (11), Stuttgart Region (6), Bavaria, Germany (6).
Search footprint
Sereact attracts about 25 organic search visits a month, traffic worth roughly $1K a month if bought through ads. It gained 7 ranking keywords and lost 14 in the last period.
What employees say
- Compensation
- 4.00 / 5
- Career opportunities
- 4.00 / 5
- Senior management
- 3.70 / 5
- Work-life balance
- 3.30 / 5
Frequently asked
Sereact has 98 employees as of September 2026.
Sereact has raised $147M in total, most recently a Series B round in April 2026.
Sereact was founded in 2021 by Ralf Gulde, Marc Tuscher, Lukas Wagenblast.
Ralf Gulde (Co-Founder & CEO) sits at the top of Sereact's reporting structure, with 2 direct reports.
The most common previous employers of current Sereact staff are Covariant (8 people), University of Stuttgart (4 people), Mercedes-Benz (4 people).
Former Sereact employees most often move to Humanoid (2), Salesatstartups.com (1), Postelix (1).
At least 3 companies have a founder who previously worked at Sereact, including OpenMind Robotics, Salesatstartups.com, Postelix.
Sereact attracts about 25 organic search visits a month, worth roughly $1K a month in equivalent ad spend.
The most common skills among Sereact staff are Python (Programming Language), C++, Machine Learning, Robot Operating System (ROS), Robotics.
Sereact staff are concentrated in Baden-Württemberg, Germany (27), Germany (11), Stuttgart Region (6).
Sereact has about 37 people in Engineering, up 16% over the past year, as of September 2026.
Sereact has about 17 people in Information Technology, up 89% over the past year, as of September 2026.
Computed from 84 current and 37 former Sereact profiles, as of September 2026. Source: Crustdata.
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