Your manufacturing partner for high-precision

Let's work together!

From research to production

Let's work together!

Specialized in polymers, composites and metals

Let's work together!

About us

SUB-ALLIANCE regroups different advanced manufacturing capabilities in high-precision domains.

Our different teams enable a unique synergy between development and manufacturing in polymers, composites, metals and transmissions.  Our manufacturing processes are qualified as best in class and guarantees the highest level of quality, supported by short delivery times.

The SUB-ALLIANCE E.I.G. is composed of 4 companies divided over 5 plants. We excel in manufacturing of the most demanding applications, on earth, on sea and in space.



From research to production

Bright future for aerospace & technology in Belgium

Precision mechanics

DEDECKER PRECISION MECHANICS  is specialised in automatic turning of metal and plastic parts; as well as the machining and grinding of precision parts according to drawings or models. We do also perform the heat treatment and surface treatment in-house.

Our focus on progress has spurred us to acquire the latest generation of CNC machines. Our flexibility allows us to create your parts in small, medium and large batches.

Under the ISO 9001 certification, we are able to perform all types of repair operations.

Involved in a process where it is essential to be able to keep a distance, DEDECKER PRECISION MECHANICS has given itself the means it needs to achieve its ambitions by a sustained quality effort and continuous innovation.


Gears & transmissions

GRIMONPREZ TRANSMISSION GEARS  is specialised in the manufacturing of all types of gears (straight gears, helical, straight bevel,…); and in the manufacturing of transmission boxes in small and medium sized batches. All operations  are performed  in-house:  the hobbing & shaping, the groving & broaching, the CNC turning & milling; as well as the heat & surface treatment .

Our primary objective is to establish a partnership with our customers. We will always try to meet your wishes and expectations to the best of our ability and guarantee you the best of service our expertise and know-how has to offer, along with an efficient communication and modern production means.

In order to ensure a constant quality, we check it at every step of the production process. Our ISO 9001 certification guaranties a rigorous respect of procedures and allows us to measure customer satisfaction.


Sustainable development

In a constant desire to increase our productivity and reducing our ecological footprint, SUB-ALLIANCE pursues a policy of synergy between the manufacture of high-precision components and the use of appropriate materials for the end use.
By using this sustainable development methodology, we are often able to reduce the weight of your products. The energy consumption to use, move or fly your products will therefore also be reduced. Your impact on the environment will decrease in the same way.
Our company was founded in 1950 and has worked over the years to continue to develop this activity in the most sustainable way. We ensure that we use the minimum amount of energy and raw materials to meet your needs while protecting our planet.


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