Upcoming Webinars
Access the latest trends and insights shaping the profession—free for members.
Register early—members get 20% off when enrolling 60+ days before courses start.
Charting Your Course to Success
From foundational knowledge to advanced leadership skills, NIGP offers a wealth of tools and resources to help you navigate your professional journey and achieve your leadership goals.
Your step-by-step guide to a successful career in public procurement.
Get 20% off by registering 60 days prior to the course start date.
All the tools to help you successfully prepare for certification.
Closes December 21.
Start your job search in the field of Public Procurement.
Join a network of thousands of professionals working in the field of Public Procurement.
As volunteers serve the Institute, the Institute serves the profession, and the profession serves society.
Each year, NIGP recognizes members who have achieved hallmark status in the eyes of their peers.
Access to Our Exclusive Audience of Procurement Officials
19,000+ public procurement professionals, over 2,400 agencies, and 65 regional chapters across North America
Register early—members get 20% off when enrolling 60+ days before courses start.
Charting Your Course to Success
From foundational knowledge to advanced leadership skills, NIGP offers a wealth of tools and resources to help you navigate your professional journey and achieve your leadership goals.
Your step-by-step guide to a successful career in public procurement.
Get 20% off by registering 60 days prior to the course start date.
All the tools to help you successfully prepare for certification.
Closes December 21.
Start your job search in the field of Public Procurement.
Join a network of thousands of professionals working in the field of Public Procurement.
As volunteers serve the Institute, the Institute serves the profession, and the profession serves society.
Each year, NIGP recognizes members who have achieved hallmark status in the eyes of their peers.
Access to Our Exclusive Audience of Procurement Officials
19,000+ public procurement professionals, over 2,400 agencies, and 65 regional chapters across North America
Founder
Procurement as a Service firm A Posteriori LLC
Sean Carroll, , NIGP-CPP, CPPO is the founder of the Procurement as a Service firm A Posteriori LLC, a Procurement as a Service Firm serving Governments, businesses and other public procurement stakeholders. He served as the chief procurement officer for the state of New York from 2016-2023, and various counties, cities and school districts across NYS state since 2005. He has served under 4 governors and managed more than 3000 contracts with annual spend exceeding $50 Billion for state agencies, state campuses and local governments. He has expertise in end to end procurement, cyber policy and terms and conditions, legislation, rule making and policy and experience in public work, commodities, services, technology, including DEI, social equity, sustainability, fair labor practices and emergency procurement. He has served as an NIGP Chapter Ambassador, on the NIGP Governing Board and as Chair of the NIGP CPP Certification Commission.