What Sdui does

Sdui is a German-based SaaS company founded in 2018 in Koblenz that operates a cloud-based communication, organization, and administration platform for educational institutions, primarily schools, daycares, and school authorities across the DACH region and broader Europe. The platform is structured as three modular suites (Communication & Organisation, Administration & Verwaltung, and Learning & Grade Management) plus add-on modules including an AI timetable planner, room and resource planner, full-day administration, and a digital class register, all delivered as a GDPR-compliant solution hosted on German servers. Revenue is generated through annual B2B subscriptions with 1-3 year contract terms, priced by institution size and feature scope on a quote basis, and distributed via direct sales to school administrators, a network of certified channel partners and resellers, and OEM/whitelabel integrations (notably with Untis WebUntis, Cancom, Fujitsu, and Nextcloud).

In 2024, Sdui Group rebranded as Seven Education, consolidating acquired brands Pupil (Switzerland), Konecto (Belgium), Additio (Spain), and FoxEducation (Austria) under a unified identity, and serves more than 22,000 educational institutions across Europe, with sub-brand reach into 70+ countries. The company has raised approximately €140M in total capital across multiple rounds, with Bain Capital joining as lead investor in 2024-2025 alongside HV Capital, Haniel, HTGF, Brighteye Ventures, and Summiteer, supporting continued European expansion, AI product development, and additional M&A activity.

Name

Sdui

Legal name

Sdui GmbH

Website

https://sdui.de

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

101–250 employees

Short description

Sdui is a German SaaS company providing a GDPR-compliant cloud platform for communication, scheduling, and administration to 22,000+ schools, daycares, and educational authorities across Europe, operating under the Seven Education group.

Ownership category

akta.pro rank

Product category

Education Technology (School Communication & Administration Software)

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Educational Services (611)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

K–12 SIS & District Administration Platforms (EDAFAEAA)

akta.pro secondary industries

Attendance, Scheduling, Timetabling & Calendar Management (EDAFAEAF), Learning Management Systems (LMS) & Academic Application Support (EDALAMAC)

Keywords

• School communication software
• Education administration platform
• School management system
• Educational messaging platform
• Edtech SaaS

Headquarters

HQ city

Koblenz

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations

Revenue model

1. SaaS Subscription: Annual subscription model for schools and educational institutions accessing the Sdui platform, with pricing based on institution size and feature requirements. Contract terms range from 1-3 years with automatic renewal unless terminated 3 months before expiry.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels10 records

Core offering

Sdui provides a cloud-based, GDPR-compliant SaaS platform for educational institutions that unifies messaging, scheduling, administration, and learning management. The offering is organized into three core suites (Communication & Organisation, Administration & Verwaltung, Lern- & Notenmanagement) with add-on modules including an AI-powered timetable planner, room and resource planner, and full-day school administration. The platform serves primary schools, secondary schools, special needs schools, daycares, and multi-school educational authorities across Europe, hosted exclusively on German servers.

Product overview

Sdui is a comprehensive digital operating system for schools and daycares, offered as a modular platform with three core suites (Learning & Grade Management, Administration & Administration, and Communication & Organisation) plus AI-powered add-on modules. The core Sdui App provides messaging, video conferencing, calendar, timetable, absence notifications, news distribution, and cloud storage. Key add-on modules include the AI Timetable Planner (KI-Stundenplaner) for automated schedule optimization, the Room & Resource Planner for space management, and the upcoming Full-day School Administration module. The product portfolio includes acquired brands FoxEducation, Pupil, Konecto, and Additio App, plus the Sdui Plus marketplace and Sdui Lite API. All solutions are GDPR-compliant and hosted on German servers.

Differentiator

Problem solved

Functional benefit

Brands

• SchoolFox: Communication platform for schools and daycares
• FoxKids
• Pupil
• Konecto
• Additio App
• FoxEducation
• OSS Messenger
• Sdui Plus

Products and services

• Sdui App Mobile and web-based messaging and communication platform for schools and daycares, connecting teachers, parents, and students through chat, video conferencing, calendar, timetable, absence notifications, news distribution, and digital class register functions.
• Lern- & Notenmanagement Suite (Learning & Grade Management Suite) Digital grade book and lesson planner for individualized assessment and promotion, tracking learning and development goals, creating data-based reports, and sharing lesson series and materials with colleagues.
• Administration & Verwaltung Suite (Planning & Administration Suite) School administration module for managing master data, creating and sending official letters, organizing full-day or afternoon programs, and planning resources and rooms.
• Kommunikation & Organisation Suite (Communication & Organisation Suite) Communication and collaboration suite featuring chat, video telephony, news function, digital class register, and cloud storage for secure and GDPR-compliant information exchange.
• KI-Stundenplaner (AI Timetable Planner) AI-powered timetable planning module that optimally coordinates class schedules, room occupancy, and teacher availability, automatically generating customized timetables with one click.
• Raum- & Ressourcenplaner (Room & Resource Planner) Module for planning and managing rooms and resources in educational institutions, providing transparency and reducing stress around material and room utilization.
• Ganztagsverwaltung (Full-day School Administration) Module for managing full-day school programs and afternoon activities in educational institutions.
• FoxEducation Austrian education platform acquired from GoStudent group in July 2024, serving the DACH region's communication and messaging market for schools and daycares.
• Pupil Swiss educational communication platform acquired by Sdui Group in February 2022.
• Additio App Spanish school management and communication application acquired from Didactic Labs in April 2023, enhancing performance evaluation and skill development capabilities for over 13,000 institutions across 70 countries.
• OSS-Messenger Secure messaging system developed for and provided to all primary and special needs schools in Saarland by the state Ministry of Education, featuring user-friendly, agile, secure, and GDPR-compliant communication.
• Sdui Lite Free interface provided exclusively to Stüber Systems customers, enabling display of DAVINCI timetables within Sdui.

Quantifiable outcome

• Administrative workload reduced by 80%
• +3 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability3 records

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• FoxEducationcoreStrategic or Co-development Partner · 1 July 2024Austrian education platform previously owned by GoStudent, acquired by Sdui in July 2024. The acquisition strengthens Sdui's position in the DACH region's educational communication market.
• UntiscoreTechnology or Integration · 1 January 2023Sdui Messenger integrated into the WebUntis platform since 2023, combining Untis's 50+ years of school organization expertise with Sdui's communication innovations. Over 26,000 educational institutions use Untis products worldwide.
• RednetminorChannel Partner/ Reseller/ DistributorSpecialized IT partner for public authorities and educational institutions, supporting schools in IT concepts, infrastructure, and digital device integration.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• schul.cloud: German cloud-based communication platform for schools, built on Hetzner infrastructure. Directly comparable on GDPR-compliant messaging and school administration features for the DACH market.
• Untis / WebUntis (Gruber & Petters): European leader in school timetabling with 26,000+ institutions. While Sdui Messenger is integrated into WebUntis, Untis itself competes with Sdui's KI-Stundenplaner on scheduling and resource planning for European schools.
• SchoolFox: Direct competitor in school-home communication, now part of the same Seven Education group. Comparable messaging, parent-teacher communication, and administration features targeting the same DACH K–12 market.
• IServ: German school communication and administration platform widely deployed across German schools. Competes directly with Sdui for district-wide mandates and provides comparable messaging, timetable, and admin functionality.
• itslearning: European Learning Management System provider serving K–12 and higher education. Listed as a Sdui partner, but offers overlapping communication, assignment, and collaboration features that compete for the same school budgets.
• ClassDojo: Widely adopted school communication and classroom management platform. Competes with Sdui on teacher-parent-student messaging and classroom engagement, though with weaker GDPR/data-sovereignty positioning for European institutions.
• ParentSquare: US-based school-home communication platform with district-wide deployments. Directly comparable in messaging, announcements, and parent engagement but lacks the EU data-residency positioning that Sdui emphasizes.

Regional players

• LogineoNRW / Logineo (CIVIC): State-mandated communication and collaboration platform for schools in North Rhine-Westphalia (largest German federal state). Competes for the same district-wide school communication mandates as Sdui but limited to a specific German region.

Broad incumbents

• Microsoft Teams for Education: Global incumbent in education communication and collaboration, bundled with Microsoft 365 Education. Competes for the same school communication workflows as Sdui but as part of a much broader productivity suite rather than an education-specialized platform.
• Google Classroom: Free, broadly deployed classroom management and communication tool from Google. Overlaps with Sdui on teacher-student communication and assignment workflows, but lacks European data-residency and education-administration depth.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCfqggiPru4moaYIq7b3381A
• Facebookfacebook.com/sdui.de
• LinkedInlinkedin.com/company/sdui
• Instagraminstagram.com/sdui.group
• Xx.com/sduiapp

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries4 records

Funding overview

Funding rounds7 records

Investors10 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A4 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sdui