Sdui
Sdui develops software for digital education management used by schools and daycare centers. The 71-person company has raised $158M, including a Series C round in July 2025 led by Bain Capital and BlackRock.
The growth story
Sdui grew from 89 to 71 employees between 2021 and 2026, raising $158M along the way, most recently a Series C in July 2025.
About
Sdui sells a platform that helps schools and daycare centers manage communication, scheduling, and digital learning tools. Its features include chat, video conferencing, timetables, and automatic translations, all designed to comply with GDPR data privacy standards.
The company has raised $158M from investors including Bain Capital and BlackRock, with its latest Series C round closing in July 2025. With 71 employees, Sdui is scaling its operations to support its education-focused software platform.
Founders and leadership
Engineering is Sdui's largest function with 13 employees. The company is headquartered in Coblenz, Germany, and draws talent from local universities including Universität Koblenz-Landau.
The Sdui org chart
Daniel Zacharias (Co-Founder) leads 24 mapped leaders with 8 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 17 (-32% YoY), Business Development 8 (-11% YoY), Entrepreneurship 6 (+20% YoY), Sales 6 (+20% YoY), Product Management 5 (0% YoY), Customer Success and Support 4 (-20% YoY).
Talent flow
Sdui recruits from education technology firms like FoxEducation and mps public solutions. Alumni frequently move to other education-focused companies, with BRICKMAKERS being the top destination.
Most common previous employers of Sdui staff: SAP Signavio (2), mps public solutions (2), FoxEducation (2), Acronis (1), GoDaddy (1), IntelliShop (1). Former Sdui employees most often moved to BRICKMAKERS (5), Seven Education (3), onpoint (2), Iridium Works (2), nuwacom (2), Debeka (2).
Alumni worth knowing
The Sdui mafia
Sdui alumni have founded 12 companies, including PTO Media and Wavelr, which employ up to 9 and 6 staff respectively.
12Luke Holmer, was Junior Art Director until 2019Roman Rittmann, was Head of Growth until 2022Bora Ozdemir, was Consultant until 2021Marc Seitz, was Head of Engineering until 2021Sarah Jochimsen, was Head of Sales Germany until 2023Dominik Nitsch, was Head of International until 2024
Daniel Baitler, was Project Manager until 2020
Ruwen Reinhard, was Director Engineering until 2026
Enrique Fernández, was International Marketing Manager until 2023
Mustafa Abbasoglu, was Country Manager Turkey until 2021
Timo Stosius, was Founding Member & Head of Design until 2023
Damien Noß, was Sales Intern until 2021Web traffic
Traffic mix: 52% direct, 10% search, 0% social, 0% paid.
What this company is made of
Most common skills at Sdui: Marketing (23), Leadership (20), Scrum (20), Business Development (19), Project Management (16), HTML5 (14), JavaScript (13), Software Development (13).
Where the team actually sits
Sdui people are concentrated in Rhineland-Palatinate, Germany (12), Germany (8), Berlin, Germany (7), North Rhine-Westphalia, Germany (5). 2 offices on record.
Search footprint
Sdui attracts about 70 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 13 ranking keywords and lost 22 in the last period.
What employees say
- Compensation
- 3.30 / 5
- Career opportunities
- 3.60 / 5
- Senior management
- 3.50 / 5
- Work-life balance
- 4.10 / 5
Frequently asked
Sdui has 71 employees as of September 2026.
Sdui has raised $158M in total, most recently a Series C round in July 2025.
Sdui was founded in 2018 by Daniel Zacharias.
Daniel Zacharias (Co-Founder) sits at the top of Sdui's reporting structure, with 8 direct reports.
The most common previous employers of current Sdui staff are SAP Signavio (2 people), mps public solutions (2 people), FoxEducation (2 people).
Former Sdui employees most often move to BRICKMAKERS (5), Seven Education (3), onpoint (2).
At least 12 companies have a founder who previously worked at Sdui, including PTO Media, Wavelr, Bomensoft.
Sdui attracts about 70 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among Sdui staff are Marketing, Leadership, Scrum, Business Development, Project Management.
Sdui staff are concentrated in Rhineland-Palatinate, Germany (12), Germany (8), Berlin, Germany (7).
Sdui has about 17 people in Engineering, down 32% over the past year, as of September 2026.
Sdui has about 8 people in Business Development, down 11% over the past year, as of September 2026.
Computed from 53 current and 194 former Sdui profiles, as of September 2026. Source: Crustdata.
Build this for any company
Every number on this page came from the Crustdata API. Point the MCP at a company and get the same org chart, alumni list and talent flow in one prompt.