Machining Companies in Annecy: 10 Listed Workshops

Choosing a machining subcontractor depends first on the nature of your part. A part of revolution (shaft, ring, axle) calls for turning; a prismatic part with complex shapes calls for milling, ideally 3 or 5 axes. For shapes impossible to obtain by conventional cutting, EDM becomes necessary.

Check the materials mastered

Not all workshops work the same materials. Aluminium and steel are almost universal; stainless steel, titanium and superalloys require more expertise and suitable tooling, common in aerospace- and medical-oriented workshops.

Match the batch volume

For a prototype or a one-off part, favour a responsive workshop with a design office. For medium or large batches, machine capacity and automation become decisive for the unit price.

Annecy has built a solid industrial identity around precision engineering, a direct legacy of the watchmaking and bar-turning tradition that has shaped the nearby Arve valley (vallée de l'Arve) for decades. This historic metalworking know-how has fostered specialised workshops capable of meeting the tight tolerances demanded by the aerospace and medical sectors, well represented among local buyers.

The listed companies are mainly concentrated in the industrial zones of Annecy and the neighbouring town of Chavanod, embedded in a dense Haute-Savoie industrial ecosystem. Complementary capabilities can be found there: series Swiss machining at LJ Industries and DDI, 5-axis milling geared toward aerospace at Gemma, and even wire and sinker EDM at EFOP Erosion, a rare process that illustrates the level of specialisation reached in this area.

The ten workshops listed in Annecy cover a significant range of processes: turning and milling are present in almost all of them, guaranteeing a broad offering for common prismatic and rotational parts. Swiss machining (bar turning) — practised notably by DDI and LJ Industries — addresses the need for small parts machined in large series from bar stock, a specialty directly inherited from the Arve valley environment. 5-axis milling, available at Gemma, opens the way to complex single-setup geometries, particularly sought after in aerospace.

EDM — both wire and sinker — is handled by EFOP Erosion and Seremo, enabling the processing of hardened steels, tooling, and shapes impossible to reach through conventional cutting. Grinding, practised by EFOP Erosion, Magnin Mécanique Générale and Teissier Technique, rounds out the offering for fine surface finishes and very tight tolerance dimensions. These process combinations make the Annecy area relevant for multi-operation parts without having to multiply suppliers.

On the customer sector side, aerospace is the most frequently cited end market: Gemma, EFOP Erosion, Magnin Mécanique Générale and Teissier Technique are explicitly positioned there, implying high traceability and qualification requirements. Medical is addressed by EFOP Erosion and Teissier Technique, and automotive by three workshops. A buyer looking for a supplier for furniture parts, food industry components or large-scale plastic series will likely need to widen the search beyond the Annecy area.

Before contacting an Annecy workshop, prepare a complete technical file: a dimensioned drawing with explicit tolerances and surface finishes, a native 3D or STEP file, precise material designation (standardised grade, any heat treatment) and target quantity, indicating whether the part is a prototype, a small batch or a recurring need. In an area with a strong precision culture, a vague specification lengthens exchanges and delays the quote without any gain on price.

What makes a quote vary here is primarily geometric complexity and the number of operations: a part requiring turning, 5-axis milling and grinding will involve several stations, or even several workshops. Hard materials — stainless steel, titanium, Inconel — increase cycle times and tool wear, which local workshops handle well but legitimately factor into pricing. Required certification (EN 9100 for aerospace, ISO 13485 for medical) is a decisive selection criterion: check it before requesting any quote to avoid approaching a workshop that isn't qualified.

Geographic proximity is especially valuable for iterative prototyping parts, industrial maintenance emergencies or fine-tuning that requires several physical back-and-forth visits. Workshops in Chavanod, Seynod or central Annecy are easily accessible from Savoie, Haute-Savoie and the Geneva area (Genevois). However, if your need concerns large-series Swiss machining at an optimised price, the Arve valley corridor (Cluses, Magland) offers an even greater density of specialists and is worth exploring in parallel.