1.         R.L. Schmitt Company, Inc.进口陶瓷塞规、陶瓷环规

2.         Adam Ruppel Asbach GmbH

3.         Atlas th read gage

4.         Deltronic

5.         Gage Assembly Company

6.         Glastonbury Southern Gage

7.         Hemcogages

8.         Johs. Boss GmbH & Co. KG

9.         Lehren- und Meßgerätewerk Schmalkalden GmbH

10.     PMC lone star

11.     Thread Check Inc.

12.     Threadmaster

13.     Tru-Thread Gage

14.     Truthread Gauges & Tools Pvt.Ltd

15.     Vermont gage

16.     Zodiacgauge

17.     Pennoyer-Dodge Company

18.     Mercury Tool & Gauge Limited

19.     Michigan Spline Gage Co.

20.     Reska Spline Gage Inc.

21.     Eagle Spline Gage, Inc.

22.     Sun-Tec Corporation

23.     Rex Gauge Company, Inc.

24.     B. C. Ames Inc.

25.     Ames Hardness testers

26.     Southwest Calibration Service

27.     National Institute of Standards and Technology 美国NIST冲击试块、进口标准试块

28.     ALAMO GAGE INC

29.     Bal-tec

30.     Barcor.Inc

31.     Brunswick Instrument LLC

32.     COMTORGAGE CORPORATION

33.     Danco Industries Pte Ltd

34.     Deterco

35.     Dietert Sand Testing Equipment

36.     Dip Seal Plastics

37.     Dorsey Metrology International

38.     Dyer Company

39.     Easygauge

40.     G.A.L.GAGE CO

41.     Gage Crib Worldwide Inc

42.     Gagemaker LP

43.     Gaging.com LLC

44.     HigherPrecision.com, LLC

45.     McCord and Company

46.     Minitaps

47.     Mueller gage

48.     Ottawagage

49.     Precision Gage & Tool Co.

50.     R & K Tool Sales, Inc

51.     Rubert & Co

52.     S-T Industries, Inc

53.     Swiss Precision Instruments, Inc.

54.     TAC Rockford | Transatlantic Connection, Inc.

55.     United States Ball Corporation 高精度钢球、测球

56.     Universalpunch

57.     WESTport Corporation