Membership Directory Membership Directory Membership Directory Search Radius... 1 mi 5 mi 10 mi 50 mi 100 mi Y Back to Search Results: 2 Young Professional Society Greater Springfield Young Professional Society Greater Springfield YNI Services, LLC. YNI Services, LLC. 237 Lacus Drive, Holyoke, MA 01040 (413) 313-8105 Send Email Powered By GrowthZone