​ ★   Indicates a Federal Contractor
  
 ★   84 Lumber Company
 ★   ABM
 ★   Acadia Pharmaceuticals Inc.
 ★   Adient US LLC
 ★   Agiliti
 ★   Air Methods
 ★   Aleron
 ★   Amazon.com Services Inc.
 ★   Amcor Rigid Packaging
 ★   Amedisys, Inc.
 ★   American Red Cross
 ★   AmerisourceBergen Global Commercializ...
 ★   AmerisourceBergen Pharmaceutical Dist...
        Anderson Merchandisers LLC
 ★   ARS - Applied Research Solutions
 ★   Batteries Plus LLC
 ★   Belcan Corporation
 ★   Bimbo Bakeries USA
 ★   Boston Government Services
 ★   Brandenburg Industrial Service Company
 ★   Butler America Aerospace L.L.C.
 ★   Cardiovascular Systems, Inc
 ★   Ceva Logistics
 ★   Change Healthcare
 ★   CIOX Health
 ★   Coca-Cola Bottling Co. Consolidated
 ★   Concentra, Inc
 ★   Contech Engineered Solutions
 ★   Crowe
 ★   Cypress Semiconductor Corporation
 ★   Davey Tree Expert Company
 ★   Davita Inc.
 ★   Day & Zimmerman Company
 ★   DC Group
 ★   Dialysis Clinic, Inc.
 ★   Donaldson Company
        Encompass health
 ★   Ethan Allen Global, Inc.
 ★   Fastenal
 ★   Five Star Senior Living Inc.
        Fort Dearborn
 ★   G4S Secure Solutions
 ★   Galls
 ★   Global Medical Response
 ★   Gordon Food Service
 ★   Gresham Smith
 ★   GRW Engineers, Inc.
 ★   GTL
 ★   Guitar Center Stores, Inc.
 ★   Gypsum Management & Supply (GMS Inc.)
        H O Wolding Inc.
        Harvard Maintenance, Inc
 ★   HDR, Inc.
 ★   Imperial Parking (U.S.), LLC
 ★   Inter-Con Security Systems, Inc.
 ★   ISN Corporation
 ★   Japanese Automotive Company
 ★   Johnson Controls, Inc.
 ★   K12, Inc
 ★   Kaman Distribution Group
 ★   Kentucky Orthopedic Rehab Team
 ★   Kindred At Home
 ★   Kindred RehabCare
 ★   Koorsen Fire & Security
        Kroger
        Krones, Inc.
 ★   Lexmark International Inc
 ★   LG&E and KU Energy
 ★   Lincare Holdings
 ★   M.C. Dean
 ★   Masimo Corporation
 ★   Mayvin, Inc.
 ★   McKesson Corporation
 ★   McLane Company, Inc
        Meijer
 ★   Members Heritage Credit Union
 ★   Millennium Health
 ★   NetSmart Technologies
 ★   Novartis Group Companies
 ★   Nutrien
        Octapharma Plasma, Inc.
 ★   Ohio Farmers Insurance Company
 ★   Ohio Transmission Corporation
 ★   Olympic Steel
 ★   OpenText
 ★   ORBIS Corporation
 ★   Parsons Corp.
 ★   Patrick Engineering
 ★   Pearl Interactive Network
 ★   Peoples Natural Gas
 ★   Pittsburgh Glass Works
 ★   Pro2Serve
 ★   Quest Diagnostics Incorporated
 ★   Red Bull North America
 ★   Rentokil North America
 ★   ResCare
 ★   RetailData LLC
 ★   Ruchman and Associates, Inc
        Rumpke of Ohio, Inc.
 ★   S&ME Inc.
 ★   Salesforce.com
 ★   Save the Children
 ★   Solution One Industries, Inc.
 ★   Sonoco Products Company
 ★   Sorenson Communications
 ★   Southern States Cooperative
 ★   SP+
 ★   Staffmark
 ★   Stericycle Inc
        STS Technical Services
 ★   Subsite, LLC.
 ★   Tecta America Corp.
 ★   Tempur Sealy
 ★   Terracon Consultants, Inc.
 ★   The Educe Group
 ★   The J. M. Smucker Company
        The Kiley-Craig Agency
 ★   The Sherwin-Williams Company
 ★   T-MOBILE USA, Inc.
 ★   TRC Companies, Inc.
 ★   Trilogy Health Services
 ★   UnitedHealth Group
 ★   Verizon
 ★   Vulcan Materials Company
 ★   WesBanco Bank Inc.
 ★   WESCO Distribution
 ★   Westat
        Western & Southern Life Insurance
 ★Woolpert, Inc.