Metalworking
in the micro range
With Swiss excellence
With Swiss precision and state-of-the-art processes
Retero GmbH is your partner for high-precision micromachining down to the smallest detail. We manufacture complex components from sophisticated materials such as medical-grade stainless steel, titanium, carbide or ceramic, with tolerances in the micron-range.
Whether for medical technology, the watch industry or precision mechanics: With processes such as wire EDM, micro-EDM, die-sinking EDM, laser cutting or 3D milling, we guarantee the highest quality.
As a family-run Swiss SME, we combine state-of-the-art technology with close customer relationships. Personal, reliable and precise. Retero is your partner for what really counts: uncompromising quality down to the smallest detail.

Our certifications
Retero stands for Swiss precision, technical excellence and responsible practices. That is why Retero has been certified to ISO 9001 and ISO 13485 standards for more than ten years.
Two internationally recognized standards that provide measurable assurance and trust for our customers.
Our specialties
01
Wire EDM
The classic for high precision with complex contours. We use a continuously fed wire electrode to cut metallic materials with extreme precision, perfect for demanding individual parts or series.
02
Micro EDM
The premier class of electrical discharge machining and currently the most precise process in our industry. We use ultra-fine wires (Ø 0.02 mm) to cut complex contours into the hardest materials. Non-contact, burr-free and with micrometer tolerances.
03
Die Sinking EDM
For complex internal contours in hard materials. The electrode shapes the workpiece by means of controlled electrical discharges, achieving maximum precision and excellent surface finish.
04
EDM drilling (start-hole EDM)
Where conventional drilling is no longer possible, start-hole EDM begins. We use spark erosion to create the smallest, high-precision micro-holes.
05
Laser cutting
Reteros precision laser cutting is fast, non-contact and precise. Our laser cutting is ideal for intricate parts with the highest requirements for precision and detail.
06
3D milling
With our milling centers, we process metals three-dimensionally and achieving complex shapes even in hard milling applications. Precisely and with a perfect surface finish.
07
EDM grinding
The component is clamped on a high-speed rotary axis and continuously eroded during rotation.
08
Bending, punching
We use our tools to produce precision-fit parts, punched, bent, embossed and shaped with consistent quality and repeatability.

What our customers say
Over many projects, Retero has proven to be an extremely reliable partner. Communication is open and constructive. Concerns are taken seriously and optimized together. A reliable partner with a high level of expertise.
Marc Wolf
AVOR in mold making
Retero is a flexible and reliable partner for us in wire EDM and laser cutting of small components in the watch industry.
The close, personal contact with the experts at Retero is particularly unique. Some orders are delivered in person and the technical details are discussed straight away. A service that we greatly appreciate.
Rico Gridelli
Work coordinator in the watch industry
The parts eroded by Retero are in use by our customers and are running perfectly.
We are delighted with the good quality and reliable work that the team delivers time and time again.
This makes collaboration fun!
Thomas Bont
Managing director in the measurement technology
As experts in mold making for injection molds, we value Retero as a partner: fast, precise and reliable - even when things get tight.
We can absolutely recommend a collaboration.
Adrian Mäder
Production manager in mold making
The cooperation with the Retero team is outstanding. The reliability, the quality and punctuality of this partner are exemplary.
We highly recommend Retero and look forward to many more joint projects.
Hans Rudolf Wyss
Sales Manager, Contact manufacturer
We have been working with Retero for years and are more than satisfied with them as a supplier.
What sets Retero apart is its fast response time and flexibility combined with high production quality, when they produce components for us for the stamping shop or for injection mold construction.