EMS Partner Qualification,
Selection and
Manufacturing Transfer

Service Brief: Selecting and Qualifying the Right EMS Partner – EMS Strategy Group

Why EMS qualification should be structured carefully – and how EMS Strategy Group can support you

When discussing the selection and qualification of a new EMS partner, timeframes of 15 to 18 months are sometimes mentioned for complex projects. It is important, however, to distinguish between the actual qualification of an EMS partner and a complete manufacturing transition involving product transfer and series production ramp-up. A straightforward process can be completed considerably faster.

Publisher: EMS Strategy Group | Date: October 22, 2026 | Service Brief 3

Key Strategic Insights

• 1. Why Calendar Time Still Matters: Calendar time consists of active work phases as well as periods between individual steps. Unstructured processes risk unnecessary delays between phases.
• 2. What a Thorough Qualification Helps Prevent: Rushing the qualification process risks overlooking missing test capabilities, documentation gaps, or material availability issues until series production ramp-up.
• 3. Maintaining Internal Momentum: Cross-departmental coordination involving procurement, engineering, and quality requires active oversight so that daily operations do not stall the selection process.
• 4. Selection vs. Manufacturing Transfer: Transferring an existing production setup involves migrating technical documentation, test equipment, fixtures, and process know-how beyond initial partner selection.

How EMS Strategy Group Supports Your Team

• Structuring the selection process into clearly defined phases with realistic timelines
• Independent, objective evaluation of EMS suitability beyond standard certificates
• Active coordination across internal departments to maintain continuous project momentum
• End-to-end management covering selection, technical transfer, and series ramp-up

Online Preview

You can read the full document directly below.