De 50 største EMS-udbydere er:

1. Hon Hai Precision Industry (Foxconn ) — New Taipei, Taiwan
2. Pegatron — Taipei, Taiwan
3. Flextronics — Singapore
4. Jabil — St. Petersburg, Florida, USA
5. Sanmina — San Jose, Californien, USA
6. Celestica — Toronto, Canada
7. New Kinpo Group — New Taipei, Taiwan
8. Wistron — Taoyuan, Taiwan
9. Universal Scientific Industrial Co., Ltd. (USI) — Shanghai, Kina
10. Plexus — Neenah, Wisconsin, USA
11. Benchmark Electronics — Angleton, Texas
12. Shenzhen Kaifa — Shenzhen, Kina
13. Venture — Singapore
14. Zollner Elektronik Group — Zandt, Tyskland
15. PKC Group — Reeahe, Finland
16. SIIX — Osaka, Japan
17. Asteelflash — Neuilly Plaisance, Frankrig
18. UMC Electronics — Saitama, Japan
19. Sumitronics — Tokyo, Japan
20. Fabrinet — Pathumthani, Thailand
21. Kimball Electronics Group — Jasper, Indiana, USA
22. Integrated Micro-Electronics, Inc. — Laguna, Filippinerne
22. Global Brands Manufacture (GBM) — New Taipei, Taiwan
23. NEO Tech — Chatsworth, C...issouri, USA
27. 3CEMS — Guangzhou, Kina
28. VIDEOTON Holding — Székesfehérvár, Ungarn
29. VTech Communications — Hong Kong
30. Katolec, Tokyo, Japan
31. VS Industry Berhad, Senai, Malaysia
32. WKK Technology Ltd. — Hong Kong
33. Neways Electronics International N.V. — Son, Holland
34. éolane — Le Fresne sur Loire, Frankrig
35. Wong’s, Hong Kong
36. Key Tronic — Spokane Valley, Washington, USA
37. Orient Semiconductor Electronics — Kaohsiung, Taiwan
38. Global Brands Manufacturing, New Taipei City, Taiwan
39. Creation Technologies — Burnaby, BC, Canada
40. Hana Microelectronics — Bangkok, Thailand
41. Computime Limited — Hong Kong
42. ALL CIRCUITS — Meung-sur-Loire, Frankrig
43. LACROIX Electronics — Vern-sur-Seiche, Frankrig
44. Kitron — Billingstad, Norge
45. Topscom, Shenzhen, Kina
46. SVI, Bangkadi Pathumthani, Thailand
47. Valuetronics Holding — Hong Kong
48. Di-Nikko Engineering — Nikko, Japan
49. Nippon Manufacturing Service — Tokyo, Japan
50. TT electronics, Rogerstone, Wales