1zu1scale
Tradition meets innovation
For 30 years, 1zu1 has been manufacturing innovative plastic components for national and international customers—precisely, quickly, and using a wide range of technologies. With 1zu1scale, we shift the focus from prototype production directly to scaled series production and reliably support our customers from the start of the project to the launch of series production.
To be the no. 1 in our business fields.
- We rank among the best in all fields when it comes to innovation, precision and speed.
- We are an independently operating company of an international group of companies
- We are one of the most attractive employers in the region.
Competitive advantage in plastic components for our customers.
- Head start in the implementation of product developments and the production of plastic parts. This is achieved by using excellent 3D printing, prototyping and production processes. From one unit to 1,000,000. And all that is in-house and ISO 9001 & EN ISO 13485 certified.
- A head start when it comes to saving time: our high-precision and rapid working methods enable our customers to enjoy corresponding advantages. Since we cover all production processes in-house, we significantly shorten the time-to-market of our customers' products. We subject discretion and data security to the highest standards.
- A head start in consulting: we have a broad knowledge of relevant technologies and materials and, as part of the Prototal Group, the support of a large and experienced network. This makes us our customers' problem solvers at every stage of the product development process.
We make things possible.
How do we present ourselves?
- stimulating
- enthusiastic about technology
- conscientious
Vision
To be the no. 1 in our business fields.
- We rank among the best in all fields when it comes to innovation, precision and speed.
- We are an independently operating company of an international group of companies
- We are one of the most attractive employers in the region.
Mission
Competitive advantage in plastic components for our customers.
- Head start in the implementation of product developments and the production of plastic parts. This is achieved by using excellent 3D printing, prototyping and production processes. From one unit to 1,000,000. And all that is in-house and ISO 9001 & EN ISO 13485 certified.
- A head start when it comes to saving time: our high-precision and rapid working methods enable our customers to enjoy corresponding advantages. Since we cover all production processes in-house, we significantly shorten the time-to-market of our customers' products. We subject discretion and data security to the highest standards.
- A head start in consulting: we have a broad knowledge of relevant technologies and materials and, as part of the Prototal Group, the support of a large and experienced network. This makes us our customers' problem solvers at every stage of the product development process.
Values
We make things possible.
How do we present ourselves?
- stimulating
- enthusiastic about technology
- conscientious
Total working area in m²
Employees
Million € revenue in 2025
Years of expertise
For 30 years, we have been shaping the future of 3D printing and focusing on small, particularly demanding components in injection molding. With 1zu1scale, we are making our transition to series production visible and supporting companies where the real bottleneck lies: in the scalable transition from prototype to series production—quickly, precisely, and without detours.
Thomas Kohler,CEO at 1zu1

Our success story
Founding and rapid growth
1zu1scale was founded in 1996 under the name HTS Humml und Hämmerle Tooling Service Ges.mbH and, within just a few years, developed into a technological pioneer in prototyping as 1zu1. The company grew dynamically through continuous expansion of its service portfolio and early adoption of innovative manufacturing technologies. New processes, a growing workforce, and international customers characterized this phase. In this way, 1zu1 laid the foundation for sustainable growth and technological excellence early on.
Company in the fast lane
Since 2009, 1zu1 has been on the fast track – marked by technological milestones such as the world's first series production plant for laser-sintered parts made of polyamide, state-of-the-art e-drive injection molding machines in clean rooms, and other innovative manufacturing technologies. In 2010, the expansion of the company's premises marked an important step in its development, with its own vacuum casting hall, new sales offices, and modern infrastructure. The coronavirus pandemic marked the first turning point, causing growth to stagnate temporarily – but without slowing down 1zu1's course of innovation.
1zu1scale as part of PROTOTAL GROUP
In February 2022, 1zu1 became part of the Swedish Prototal Group, thereby strengthening the company's future prospects and international orientation. In June 2023, Thomas Kohler took over as CEO and set important strategic priorities. Since then, 1zu1 has been investing specifically in expanding its machinery and new manufacturing technologies, particularly in 3D printing and series production. With the launch of the 1zu1scale brand in January 2026, the company is sharpening its clear focus on series production.
1996 - 2008
Founding and rapid growth
1zu1scale was founded in 1996 under the name HTS Humml und Hämmerle Tooling Service Ges.mbH and, within just a few years, developed into a technological pioneer in prototyping as 1zu1. The company grew dynamically through continuous expansion of its service portfolio and early adoption of innovative manufacturing technologies. New processes, a growing workforce, and international customers characterized this phase. In this way, 1zu1 laid the foundation for sustainable growth and technological excellence early on.
2009 - 2021
Company in the fast lane
Since 2009, 1zu1 has been on the fast track – marked by technological milestones such as the world's first series production plant for laser-sintered parts made of polyamide, state-of-the-art e-drive injection molding machines in clean rooms, and other innovative manufacturing technologies. In 2010, the expansion of the company's premises marked an important step in its development, with its own vacuum casting hall, new sales offices, and modern infrastructure. The coronavirus pandemic marked the first turning point, causing growth to stagnate temporarily – but without slowing down 1zu1's course of innovation.
2022 - today
1zu1scale as part of PROTOTAL GROUP
In February 2022, 1zu1 became part of the Swedish Prototal Group, thereby strengthening the company's future prospects and international orientation. In June 2023, Thomas Kohler took over as CEO and set important strategic priorities. Since then, 1zu1 has been investing specifically in expanding its machinery and new manufacturing technologies, particularly in 3D printing and series production. With the launch of the 1zu1scale brand in January 2026, the company is sharpening its clear focus on series production.
part of PROTOTAL GROUP
1zu1scale is part of the PROTOTAL GROUP. The Prototal Group is a leading European manufacturing partner for industrial customers and provides comprehensive support for products from prototype to series production. The focus is on additive manufacturing, injection molding, and other modern production technologies, combined with an international network of local manufacturing sites.
Where ideas grow and innovation is at home.
At our company, ideas don't just happen by chance—they arise from curiosity, team spirit, and enthusiasm for technology. With us, you'll find room to take on responsibility, provide impetus, and develop innovative solutions together. Whether you're just starting your career or looking to take the next step, with us you'll discover opportunities that evolve—just like you.
