Name
Location
Size
Founded
SignWell
Portland, United States
small
—
15Five
San Francisco, United States
midsize
2011
2U
Lanham, United States
massive
2008
37signals
Chicago, United States
midsize
1999
540
Arlington, United States
large
2013
6sense
San Francisco, United States
massive
2013
ADAK
Sacramento, United States
unknown
—
ART19
San Francisco, United States
midsize
2011
Able
New York, United States
large
2008
AbleTo
New York, United States
massive
2008
Academia
San Francisco, United States
large
2008
Accredible
Mountain View, United States
large
2013
Accrue
Dover, United States
small
2021
Acima
Draper, United States
massive
—
Acorns
Irvine, United States
massive
2012
Acquia
Boston, United States
massive
2007
ActBlue
Lorain, United States
massive
2004
Ad Hoc
Washington, United States
massive
2014
AdQuick
Santa Monica, United States
large
2016
Adavico®
Norfolk, United States
small
2011
Adlumin
Arlington, United States
large
2016
Affinity
Redwood City, United States
massive
2014
Agero
Medford, United States
massive
1972
Agile Six
San Diego, United States
large
2015
Aha!
West Menlo Park, United States
large
2013
AirDNA
Denver, United States
large
2014
AirOps
Miami Beach, United States
midsize
2021
Airbnb
San Francisco, United States
massive
2008
Aircall
New York, United States
large
2014
Airspace
Carlsbad, United States
massive
2014
Alarm Grid
Lighthouse Point, United States
midsize
2012
Alchemer
Louisville, United States
large
—
Algolia
San Francisco, United States
massive
2012
Alice
United States
midsize
2014
Alignable
Waltham, United States
midsize
2012
AllTrails
San Francisco, United States
large
2010