Pro4all Acquires STA Software to Continue Building the Leading European Construction Software Provider

Written by:

Demi-Jo Smith, January 23, 2025

The Hague, 23 January 2025 – Today, Pro4all announces the acquisition of STA Software, a SaaS provider based in Gemert, the Netherlands specializing in quality management solutions for the construction industry. This acquisition further solidifies Pro4all’s position towards becoming the leading software provider in Europe’s construction and real estate sectors while strengthening its quality and inspection management offering. Since joining the Main Capital Partners (“Main”) portfolio in April 2022, this marks the third step in Pro4all’s international buy-and-build strategy, following the acquisitions of Copenhagen-based construction software provider Byggeprojekt in July 2024 and Munich-based PMG in March 2023.

Founded in 2016, STA Software delivers quality management solutions through a modern multi-tenant SaaS platform. Its product suite includes modules for delivery and inspections, quality assurance, safety inspections, automated planning and warranty management. STA Software serves over 400+ customers, including contractors, construction managers, and electrotechnical installation companies, with the majority of its client base located in the Netherlands. Clients include Ten Brinke, PlanGarant, and Hurks. Known for its innovative and structured approach to digitizing quality processes, STA Software has established itself as a key challenger in the Dutch construction software market.

The integration of STA Software and Pro4all continues to build a leading European construction and real estate software group with an enhanced product offering and a broader geographic presence across the Benelux, DACH, and Nordics regions. STA Software’s solutions complement Pro4all’s existing portfolio, enabling the combined group to address the needs of a diverse customer base, from small to large enterprises. By leveraging Pro4all’s international customer base and partner network, STA Software is poised to accelerate its growth trajectory while further advancing the digital transformation of the construction and real estate markets.

“Our goal has always been to empower construction and real estate professionals with the tools they need to optimize their processes, ensure quality, and reduce inefficiencies,” said Dick van der Woude, Chief Executive Officer of Pro4all. “We’ve known STA Software for a while now and have crossed paths often in our industry. We’ve been genuinely impressed by what they’ve accomplished in such a short time, and we’re excited to take a major step toward achieving our vision on a European scale.” 

Hermie Vos, Chief Executive Officer and Founder of STA Software, and Thomas Muller Chief Technology Officer and Founder of STA Software added: “We are excited to join forces with the Pro4all team and are looking forward to the cooperation. By joining forces, we will be even better positioned to deliver best-in-class quality management solutions to a larger and international customer base. Besides the enhanced growth potential of our quality management solutions, we are also excited about the prospects of delivering integrated quality management and document management solutions to our own existing customer base by seamlessly integrating with Pro4all’s document management platform Prostream.”

Sjoerd Aarts, Managing Partner Benelux at Main Capital Partners and Chairman of the Supervisory Board of Pro4all, stated: “We are proud to support Pro4all in its ambitious journey to build a leading European software provider for the construction and real estate industries. This acquisition demonstrates our commitment to partnering with innovative and driven entrepreneurs to create value for customers through organic growth and strategic acquisitions. By combining STA Software’s strength in quality management with Pro4all’s international reach and expertise, we are forming a strong foundation for continued expansion across Europe.


About Main Capital Partners

Main Capital Partners is a leading software investor managing private equity funds active in the Benelux, DACH, the Nordics, and the United States with approximately EUR 6 billion in Assets under Management. Main has over 20 years of experience in strengthening software companies and works closely with the management teams in its portfolio as a strategic partner to achieve profitable growth and larger outstanding software groups. Main has 85 employees operating out of its offices in The Hague, Düsseldorf, Stockholm, Antwerp, and an affiliated office in Boston. Main maintains an active portfolio of over 50 software companies. The underlying portfolio employs over 15,000 employees. Through its Main Social Institute, Main supports students with grants and scholarships to study IT and Computer Science at Technical Universities and Universities of Applied Sciences.

About STA Software 

STA Software, based in Gemert, the Netherlands, provides cutting-edge SaaS solutions for quality and inspection management in the construction industry. With STA Software, customers can manage construction processes in real time, make data-driven decisions and collaborate seamlessly with the entire team on one platform. Using a series of digital, practice-oriented modules, STA Software provides construction companies with the tools to optimize their construction processes. Available modules are delivery and inspections, quality assurance, workplace and safety inspections, warranty management and the planner. The company employs 11 FTE and services 400+ customers, where the majority is located in the Netherlands.

About Pro4all

Pro4all, Founded in 2001 and headquartered in Woerden, has positioned itself since inception as a specialized player in the field of Document & Quality Management within the construction sector. The group helps more than 100,000 monthly users to efficiently and effectively work together on construction projects and thereby reducing failure costs. Major clients of Pro4all are i.a. construction companies, installation companies, facility managers, municipalities, real estate developers, architects, contractors, universities, hotel chains and housing corporations. In 2022, Pro4all partnered up with Main Capital Partners to collaboratively accelerate the envisaged growth strategy. Furthermore, Pro4all acquired PMG (Munich, Germany) in March 2023, and Byggeprojekt (Copenhagen, Denmark) in July 2024.