Industrial technology, mechanical engineering

GTK-Prototype UG was founded in 2014 by Tobias Günther and initially dealt with rapid prototyping machines.

Over the years, CNC milling and turning as well as assembly and development work were added due to customer requirements.

GTK-Prototype develops and designs on behalf of customers as well as internally using the most modern CAD systems such as Solid Works, Autodesk Inventor, Fusion 360 and others and inserts them into a comprehensive CAM system.
Through the production of prototypes in medical technology, mechanical engineering and the automotive sector, GTK-Prototype was able to acquire extensive experience in manufacturing.

In 2018, the production option laser cutting was added.

GTK-Prototype is currently based in Neuhausen near Tuttlingen and will move to the newly built company location in Radolfzell in the course of 2022.

Innovative concepts in machining
Services in CNC turning and milling, turning shop, assembly of complex components and devices, taking over complete outsourcing projects



The GTMB metal part production GmbH is your technical partner when it comes to machining operations, assembly of complex assemblies and equipment or relocation of production.



Through our technical expertise and flexibility, we manufacture according to your individual requirements on modern machine technology sophisticated CNC milling and turning parts in small to medium series.

These are our many years of experience in the machining of copper materials, high-strength materials and delicate products made of cast aluminum.



In quality management, we are consistently focused on the needs of the international markets of our customers.



The GTMB may be your problem solver for the production of sophisticated CNC milled parts and turned parts as well as the assembly of mechanical components and devices.



Our strengths:



Ability of simultaneous engineering


Constructive advice before the manufacturing stage


Professionalism in work preparation


Care in the production


Technical process safety by certified processes


Logistic fine-tune your rhythm production

in the GTS ter Schmitten GmbH & Co. KG.

Since 1988 we have been operating successfully as a service company in the commercial kitchen industry.

Also, our range of machining technology has been represented for years as an established supplier to companies trying various sectors in the market.

On our website we want to give you an insight into our performance catalog.

Gucioreks is a metalworking company.

The solid foundation of our company is the practical experience gained over the years of working in the machining industry. Cooperation with clients in various industries has helped us to create a business policy, thanks to which we can meet the individual needs of the client

The Güdel headquarter is located in Switzerland as it has been for generations, with fields of action on all continents. The Güdel Group has a workforce of approximately 1,100 employees, based at over 30 different locations worldwide. The company has its headquarters in Switzerland.
The Güdel Group is a manufacturer of high-precision machine components and a supplier of sophisticated automation solutions. The company's product range encompasses linear tracks, racks, pinions, transmission systems, linear modules and gantry robots. Güdel selects the appropriate products to create complete systems with intelligent control capability for use in the following industries: automotive, tire, metal, railways, intralogistics, pharmaceuticals, wood, renewable energies, aerospace and aeronautics. Güdel technology is a byword for innovation, quality and modularity.

GÜMAK weldments Kornwestheim, was established more than 50 years of recognized and successful welding company.
Craftsmanship, motivated staff, advanced machinery and workshop equipment are the basis of our success - and to be provided off the high quality demands of the market at the same time.
We are mainly designed to serve the following industries:

Special machine
Tools and equipment
Steel construction

Reliability, industrial know-how, fairness and value for money are the most important principles of our company.

We are a forward-looking medium-sized company
the metalworking industry.

Our absolute and uncompromising precision is very much in demand.

Supplier of precision machined parts (individual parts and small series) according to customer drawings for medical technology, precision engineering and optical industry, laboratory, and laser industry

Processed materials: aluminum, steel V2A, plastics, non-ferrous metals

Tolerances and surfaces:
Flatness to 0.003 mm;
Ra> 0.04;

Machining tolerances
+ / -0.01 Mm;

Complete processing including surface treatment such as zBElox (also decorative with no visible machining marks), nickel plating, gold plating ...

Laser engraving in copper and other materials
CNC 3-coordinate measuring technique
Data transfer

Metal construction in perfection!
Stephan Günthner and his company stand for quality, reliability and precision. In order to guarantee you the best possible result for your investment, we work with the highest quality materials such as steel, aluminum and stainless steel.

GÜRGENLİ Mühendislik Ltd started its activities in Bursa in 2000 in order to serve in the heavy industry sector. It aims to produce quality with the knowledge of the trained personnel with many years of experience in the sector. We are a company that has adopted the principle of working without compromising customer-oriented social responsibility and ethical values within the sectors we operate.

GÜRGENLİ Engineering Ltd carries out design, manufacturing and assembly projects with its skilled engineer staff in the heavy industry sector.

Professional trading company with its own quality assurance and warehousing to flexible and short delivery times for quality-oriented foundry products allow.

The following materials we can offer:

• ductile iron according to DIN EN 1563 max. 5000 kg per piece
• Cast iron according to DIN EN 1561 max. 5000 kg per piece
• Cast steel according to DIN EN 10293, DIN EN 10295 max. 5000 kg per piece

• Investment casting various steel and stainless steel grades in the lost wax
in different tolerance classes according to VDG P 690-85 kg / piece

Do you need parts from other materials? Ask us. Surely we can also meet your needs you.

Machine molding - with horizontal and vertical molding lines (cervical, DISAMATIC)
Hand shapes - with green sand or Furanharzsand

In 1992, the Diakonisches Werk Mecklenburg-Vorpommern eV and the former districts of Güstrow and Teterow merged to form our non-profit limited company.



Up to 900 people are currently employed, promoted, taught, professionally qualified and supported by our facilities and services.



In the district of Rostock, Güstrower Werkstätten GmbH operates workshops, day groups for people with mental and psychological disabilities, dormitories and ambulatory assisted living for people with mental and psychological disabilities, as well as an integrative day-care center and a school with a focus on mental development.



As the sole shareholder of JAM GmbH, we are also active in the area of youth social work in the Vorpommern-Rügen district.



In addition to professional rehabilitation, our facilities and services carry out a large number of measures for the stabilization and further development of the personality of the people entrusted to us:
Music and dance therapy offers, creative design, cognitive and social training, remedial courses (reading, writing, arithmetic, typewriter and computer courses), relaxation therapy exercises, sports activities, swimming, horseback riding, table tennis and much more.

Gutekunst connecting parts GmbH is your specialist for standard parts and custom parts. In almost all materials we manufacture from small to large, from simple to complex. By default, we process all common plastics, steel and nonferrous metals. By an appropriate stockpiling we can respond to our customers' requests in individual cases quickly.