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ATOSS is a German workforce-management software company providing cloud and enterprise solutions for time management, workforce scheduling, staffing analysis, and mobile workforce processes.

Last updated August 26, 2026

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Overview

ATOSS, legally ATOSS Software SE, is a German software company focused on workforce management. Its products help organizations plan, record, analyze, and optimize working time and staffing capacity. The company's software portfolio combines time management, workforce scheduling, personnel-requirements planning, employee self-service, mobile time recording, and related workforce analytics in an integrated platform. This places ATOSS in the enterprise software segment rather than in the consumer technology or general human-resources outsourcing markets. Andreas Obereder founded ATOSS Software GmbH in Munich in 1987. The business initially developed as a specialist provider of software for personnel deployment and working-time processes. It was converted into a stock corporation in 1999 and went public in 2000. In 2003, the company was admitted to the Prime Standard of the German Stock Exchange, increasing its visibility among German technology companies. ATOSS expanded its engineering footprint in 2004 by opening a development site in Timișoara, Romania. A major strategic transition was the migration of the product portfolio toward cloud delivery. Since 2015, all ATOSS product suites have been available in the cloud, allowing customers to use hosted or subscription-oriented deployment models alongside established enterprise implementations. The platform is designed for organizations whose labor demand changes by location, shift, qualification, time period, or workload. Typical applications include scheduling employees against forecast demand, documenting working hours, supporting compliance with working-time rules, and giving employees mobile access to schedules and time records. ATOSS serves customers across a broad range of industries and company sizes. Its international footprint includes offices or subsidiaries in Germany, Austria, Switzerland, Belgium, France, the Netherlands, Sweden, Romania, and India. The company reports that its software is used by approximately 15,600 customers in 50 countries. Its Munich headquarters is supported by German regional offices and international locations including Brussels, Utrecht, Paris, Stockholm, Vienna, Zurich, Timișoara, Sibiu, and Gurgaon. The company emphasizes continued product investment, stating that approximately 16 percent of annual group revenue is invested in the further development of its products and solutions. This investment supports the expansion of cloud functionality, mobile use cases, analytics, and integrated workforce-planning capabilities. ATOSS competes primarily through domain specialization, workforce-planning depth, regulatory and operational knowledge, and the ability to connect time recording with staffing and demand planning. ATOSS became a component of Deutsche Börse's SDAX on July 1, 2021. It was subsequently included in the TecDAX, with trading in the index beginning on May 10, 2023. In the same year, General Atlantic acquired approximately 19.99 percent of the company's shares, becoming its second-largest shareholder behind Andreas Obereder's AOB Invest GmbH. For 2023, ATOSS reported revenue of €151.2 million, compared with €113.9 million in 2022, and EBITA of €51.8 million, compared with €30.8 million. Net income was €35.8 million, versus €19.4 million in the prior year. The group employed more than 770 people across Europe at that time.

History

ATOSS was established in Munich in 1987 by Andreas Obereder as ATOSS Software GmbH. From the beginning, the company concentrated on software for workforce organization, including the management of working time, employee deployment, and staffing requirements. Its subject matter is operationally important for employers that must align available labor with changing demand, contractual working hours, qualifications, locations, and legal requirements. The company converted into a stock corporation in 1999 and completed its initial public offering in 2000. This transition gave ATOSS access to public capital markets and created the foundation for a more formalized expansion strategy. In 2003, the company entered the Prime Standard of the German Stock Exchange, a segment associated with enhanced capital-market transparency and reporting requirements. International product development followed in 2004, when ATOSS opened a development site in Timișoara, Romania. The Romanian presence later became part of a wider international network that also included Sibiu. Alongside its German headquarters and regional offices, ATOSS established locations or subsidiaries in Austria, Switzerland, Belgium, France, the Netherlands, Sweden, and India. These sites support sales, implementation, service, and product development activities in the company's international markets. A central change in ATOSS's business model was the availability of its product suites in the cloud from 2015 onward. Cloud delivery enabled customers to access workforce-management applications without relying exclusively on traditional customer-hosted installations. The company's software continued to cover time recording and time administration, but increasingly connected those processes with scheduling, demand forecasting, personnel-requirements planning, mobile access, and analytical reporting. ATOSS's platform is intended to support both employees and managers. Employees can access schedules and record working time through mobile or self-service tools, while managers can plan staffing levels, respond to absences or demand changes, and evaluate workforce efficiency. In complex environments, the integration of these functions can reduce the separation between attendance administration and operational workforce planning. The company has continued to characterize research and product development as an important part of its strategy, stating that around 16 percent of annual group revenue is invested in further development of ATOSS products and solutions. Its reported customer base extends to approximately 15,600 organizations in 50 countries, although the cited company information does not provide a detailed breakdown by geography, industry, or customer size. ATOSS's profile in the German capital market increased during the 2020s. It joined the SDAX on July 1, 2021, and was added to the TecDAX with trading beginning on May 10, 2023. Also in 2023, General Atlantic acquired approximately 19.99 percent of the shares, becoming the second-largest shareholder after Andreas Obereder's AOB Invest GmbH. The investment changed the shareholder structure without turning ATOSS into a subsidiary of General Atlantic. ATOSS reported strong growth in 2023. Revenue reached €151.2 million, up from €113.9 million in 2022. EBITA increased to €51.8 million from €30.8 million, while net income rose to €35.8 million from €19.4 million. The company employed more than 770 people across Europe. These figures describe the 2023 reporting period and should not be treated as current financial guidance or as later-year results. Today, ATOSS remains an active, publicly listed German enterprise-software company. Its identity is built around workforce management rather than general-purpose human-resources software: the principal proposition is to connect working-time information, employee deployment, staffing requirements, mobile processes, and operational analysis in a single software environment.

  • 2023

    Entry into the TecDAX

    [1]

    ATOSS entered the TecDAX, with trading in the index starting on May 10, 2023.

  • 2021

    Entry into the SDAX

    [1]

    ATOSS joined the SDAX on July 1, 2021.

  • 2015

    All product suites made available in the cloud

    [1]

    ATOSS made its complete product-suite portfolio available through cloud delivery.

  • 2004

    Romanian development site opened

    [1]

    ATOSS opened a software-development site in Timișoara, Romania.

  • 2003

    Admission to the Prime Standard

    [1]

    The company was admitted to the Prime Standard of the German Stock Exchange.

  • 2000

    Initial public offering

    [1]

    ATOSS became a publicly traded company.

  • 1999

    Conversion into a stock corporation

    [1]

    ATOSS changed its legal form from a GmbH to a stock corporation.

  • 1987

    Company founded in Munich

    [1]

    Andreas Obereder founded ATOSS Software GmbH, establishing the business that would become ATOSS Software SE.

Products and positioning

A specialist enterprise software provider for digitally coordinated workforce management, combining time recording, demand-based scheduling, staffing analysis, compliance support, and employee self-service in cloud-enabled solutions.

  • Workforce management platform

    ATOSS Workforce Management

    The core platform connects time management, workforce scheduling, personnel-requirements planning, employee self-service, and workforce analytics. It is designed to help organizations match labor capacity with operational demand while maintaining visibility into working-time information and staffing performance. The offering is available through cloud-enabled product suites and can support distributed, shift-based, and multi-location workforces.

  • Workforce planning and efficiency software

    ATOSS Staff Efficiency Suite

    The Staff Efficiency Suite addresses the planning and deployment side of workforce management. Its functional scope includes demand-oriented staffing, scheduling, personnel-requirements analysis, and related management information. The suite is intended for organizations that need to coordinate employee availability, qualifications, working-time rules, and expected workload rather than treating scheduling as a purely administrative task.

  • Time and attendance management

    ATOSS Time Control

    ATOSS Time Control supports the recording and administration of working time. It forms part of the company's broader workforce-management approach by providing data that can be used for attendance administration, schedule comparison, reporting, and operational workforce analysis. The product is relevant to employers that require structured time records across locations, teams, shifts, or employee groups.

  • Employee self-service and mobile workforce application

    ATOSS Staff Center

    ATOSS Staff Center provides employee-facing access to workforce processes such as schedules, time-related information, and mobile interaction with the workforce-management environment. It supports the shift from manager-only administration toward employee participation, allowing staff to interact with schedules and time records through digital channels.

Brand decisions

  • 2023

    General Atlantic investmentM&A

    Background

    ATOSS continued to expand as a listed workforce-management software provider.

    Action taken

    General Atlantic acquired approximately 19.99 percent of ATOSS shares.

    Aftermath

    General Atlantic became the second-largest shareholder behind AOB Invest GmbH; the transaction did not make ATOSS a General Atlantic subsidiary.

  • 2023

    Admission to the TecDAXOther

    Background

    ATOSS's profile as a German software company strengthened after its inclusion in the SDAX.

    Action taken

    ATOSS was included in the TecDAX, with trading beginning on May 10, 2023.

    Aftermath

    The listing placed ATOSS among the German software companies represented in the technology-focused index.

  • 2021

    Admission to the SDAXOther

    Background

    ATOSS had developed into a publicly traded German software company with sufficient capital-market visibility for index inclusion.

    Action taken

    Deutsche Börse admitted ATOSS to the SDAX on July 1, 2021.

    Aftermath

    The inclusion increased the company's representation in German small-cap equity indexes.

  • 2015

    Adoption of cloud availability across the product portfolioStrategy

    Background

    Enterprise software customers were increasingly seeking hosted and subscription-oriented delivery models in addition to traditional installations.

    Action taken

    ATOSS made all of its product suites available in the cloud.

    Aftermath

    The move supported a cloud-enabled product strategy and broadened the deployment options for the company's workforce-management software.

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