- Robert Fox Government Relation
- Robert Juliano & Assoc
- Robinson & Assoc
- Rome Smith & Assoc
- Ron KINK & Assoc LLC
- Rose & Kindel
- Ross Esperanza
- Royer & Brooks
- Rudnick Brown
- Rutland Group
- Sacramento Advocates Inc
- SAE Intl
- Scott Himelstein & Assoc
- Sector Strategies
- Sellery Associates
- Sense Inc
- Sergeant Major Assoc Inc
- Shannon Government Relations
- Shelly M Rubino
- Sheridan Group
- Situation Management Inc
- Sloat Higgins & Assoc
- Smith Watts & Co
- Soapbox Consulting
- Southeast Consultants
- Southern Insights
- Spencer-Roberts & Assoc
- SRW Consulting
- State Street Partners
- Step One Real Estate
- Steve Windom LLC
- Stevens & Stevens
- Stewart Partners
- Strategic Consulting Group
- Strategic Education Svc
- Strategic Impact
- Strategic Local Government Svc
- Strategy Group
- Stuart & Assoc
- Sullivan & Assoc
- Sullivan & Baldick
- Sundquist Anthony
- Synergy Partners Inc
- T L & Assoc
- Tacco Bell
- Terry Bevels Consulting
- Thompson & Co
- Timmerman & Co
- Timmons & Co Inc
- Tlg Associates
- Tobin Carberry O'Malley Riley
- Torres & Torres
- Traditional Values
- Traditional Values
- Transafrica Forum
- Trust Consultants
- Turner & Assoc Inc
- Udwin Group
- Vern Clark & Assoc Inc
- Walter Edwards Group LLC
- Washington Alliance Group
- Washington Group
- Willie Hausey & Assoc Inc
- Wilson Reports
- Wine Institute
- Winning Stratigies Washington
- Wolf Block Public Strategies
- Women First National
