According to the Bureau of Labor there were 500,000 jobs in the purchasing field in 2012 with a median salary over $60,000.
About three quarters of purchasing professionals are members of at least one organization.
Only those who apply
A high level summary of professional purchasing associations and their available certifications.
American Production and Inventory Control Society
Annual Cost: $200
Founded: 1957
Membership: 37,000
Certifications: CPIM, CSCP, CFPIM
*Affiliated with IFPSM
Certified in Production and Inventory Management
75 points to renew on a five year cycle
Certified Supply Chain Professional
Certified Fellow in Production and Inventory Management
American Purchasing Society
https://www.american-purchasing.com/
Annual Cost: $199 ($45 new member fee)
Founded: 1969
Membership: 1,600
Certifications: CPP, CPPM, CGPP, CPPC
Certified Purchasing Professional
Certified Professional Purchasing Manager
Certified Green Purchasing Professional
Certified Professional Purchasing Consultant
Institute for Supply Management
Certified Professional in Supply Management
Certified Professional in Supplier Diversity
Next Level Purchasing Association
http://www.nextlevelpurchasing.com
Annual Cost: Free
Premium Membership: $99
Membership: 275,000
Founded: 2000
Certifications: SPSM (Levels 1-4)
Senior Professional in Supply Management
Senior Professional in Supply Management Level 2
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Senior Professional in Supply Management Level 3
Senior Professional in Supply Management Level 4
National Contract Management Association
Annual Cost: $150 (New member Fee $25)
Membership: 22,000
Founded: 1959
Certifications: CPCM, CFCM, CCCM, ICCM-D, ICCM-F
Certified Professional Contracts Manager
Guide Book $40/$50 member/non-member price
Practice Exams (5) $100
Application Fee $199/$375 member/non-member price
60 Continuing Education Hours for renewal on a 2-year cycle
Certified Federal Contracts Manager
Guide Book $40/$50 member/non-member price
Application Fee $150/$325 member/non-member price
60 Continuing Education Hours for renewal on a 2-year cycle
Certified Commercial Contracts Manager
$125 Exam Fee
60 Continuing Education Hours for renewal on a 2-year cycle
Industry Certification in Contract Management–Defense
Renewal Fee $100/$50 member/non-member price
80 Continuing Education Hours for renewal on a 2-year cycle
Industry Certification in Contract Management–Federal
Renewal Fee $100/$50 member/non-member price
80 Continuing Education Hours for renewal on a 2-year cycle
Council of Supply Chain Management Professionals
http://cscmpcertification.org/
Annual Cost: $295
Membership: 8,500
Founded: 1963
Certifications: SCPro (Levels 1 - 3)
According to the ISM 2013 Survey their CPSM certification holders earn 9% more in average salary compared with those without credential
Source: http://www.ism.ws/files/Tools/2013ISMSalarySurveyBrief.pdf