# Sdui

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/sdui

- Industry: Software
- Headquarters: Koblenz, Germany
- Website: www.sdui.de/
- Total disclosed funding: $98M
- Latest round: Series C (Jun 6, 2025)
- Investors on record: 8

## About

Based in Germany, Sdui GmbH provides innovative digital solutions to enhance communication, streamline administration, and support learning management in educational institutions, catering primarily to schools and childcare centers.Sdui GmbH, founded in 2018, is headquartered in Koblenz, Germany, and specializes in digital communication and management solutions for educational settings. In June 2025, Sdui GmbH raised EUR 95 millions in series C funding led by new investor Bain Capital, with participation from returning investors HV Capital and High-Tech Gruenderfonds. Individual investor also participated in the round. The round was part of a larger USD 92.6 million in series C and Secondary stock purchase.  Founders Daniel Zacharias and Till Langner have built the company from inception, focusing on improving the educational experience through technology.Sdui Group offers a comprehensive suite of digital solutions designed for educational institutions. Their core products include a communication platform that integrates chat, video conferencing, and a digital calendar management system. Additionally, the company provides tools for attendance management, official correspondence, and digital grading through its learning and assessment management systems. Sdui's solutions cater to various educational environments, including primary and secondary schools, special needs schools, and childcare centers, serving thousands of institutions primarily in Germany while expanding into other European markets.Sdui Group operates on a subscription-based revenue model tailored for educational institutions, enabling them to utilize a suite of digital tools through annual contracts. Schools and kindergartens can choose from different tiers of service based on their size and specific needs. Their flagship products, including the AI timetable planner and digital gradebook, provide essential functionalities for managing educational activities. The company's EBITDA for the most recent year, 2022, was EUR -6.27 mn.In May 2024, Sdui GmbH raised EUR 21 million in venture funding, co-led by new investor Summiteer alongside returning investors HV Capital, High-Tech Gründerfonds, Haniel, JSM Hinderer, and Brighteye Ventures. This funding will be utilized to further invest in its platforms and to acquire FoxEducation. The company aims to launch new products designed to enhance its digital offerings and is strategically planning to expand into additional European markets by the end of 2025.

## Funding rounds

- Series C, Jun 6, 2025, $68M — Bain Capital, HV Capital, High-Tech Gruenderfonds
- Series A, Nov 17, 2022, $19M — HV Capital, High-Tech Gruenderfonds, Haniel, JSM Hinderer
- Series A, Feb 11, 2021, $8.5M — HV Capital, High-Tech Gruenderfonds, Viva Forever GmbH, Franz Haniel & Cie.
- Seed, Dec 19, 2019, $2.2M — High-Tech Gruenderfonds, Investitions- und Strukturbank Rheinland-Pfalz

## Investors

- High-Tech Gruenderfonds (https://capitalatlas.ai/funds/high-tech-gruenderfonds) — Seed, Series A, Series C
- Investitions- und Strukturbank Rheinland-Pfalz (https://capitalatlas.ai/funds/investitions-und-strukturbank-rheinland-pfalz) — Seed
- HV Capital (https://capitalatlas.ai/funds/hv-capital) — Series A, Series C
- Viva Forever GmbH — Series A
- Franz Haniel & Cie. (https://capitalatlas.ai/funds/franz-haniel-cie) — Series A
- Haniel — Series A
- JSM Hinderer — Series A
- Bain Capital (https://capitalatlas.ai/funds/bain-capital) — Series C