Digital Advertising and Media
Adara Media
Integral Ad Science (formerly AdSafe Media)
Adslot
Apogee Search
Anchor Intelligence
AudienceScience
BlueLithium (acquired by Yahoo!)
BrandPort
Bronto Software
Buysight (formerly Permuto)
BuzzCorps
C3 Metrics
Centro
CheckM8
CompassLabs
Datran Media
Datalogix
HookLogic
Infolinks
MAGNETIC
Martini Media
Media6Degrees
MingleNow.com (acquired by Yahoo!)
Mixpo
NetSeer
NetPlus Marketing
Poptent
Port25
PreferenceCentral (acquired by Datran Media)
PulsePoint
Questus
SocialMedia Networks (acquired by AdKnowledge)
Teracent (acquired by Google)
UnsubCentral (acquired by Datran Media)
XLNTads

Mobile
AdColony
Avesair (Acquired by InPhonic)
Mobile Marketing Association
RTP Wireless Initiative
Zoove

Organizations and Events
AOTA
The CMO Club
Email Sender and Provider Coalition (ESPC)
Emetrics Summit
The Golden Group (acquired by Jupiter Media)
Network Advertising Initiative (NAI)
Predictive Analytics World
TRUSTe
Web Analytics Association (WAA)

Enterprise IT Software
Astrum Software (acquired by EMC)
AVAKI (acquired by Sybase)
Cicero
EVault (acquired by Seagate)
HAHT Commerce (acquired by GXS Software)
Inquisite

Retail/Entertainment/Arts
Bickett Gallery
Moxie Kids
NBC
PAW (Positioning Animals Worldwide)

Government/Public Sector
Cúram Software

Philanthropy
AnimalKind
C.A.R.E.4.P.A.W.S. Communities in Schools
The Pet Foster Network
Responsible Pet Owners Alliance
Santa Barbara County Animal Services