Browser Monster Index
Who’s watching
The 93 tracking companies Browser Monster recognises: what they do, where they’re based, and how to opt out.
33Across
Ad exchange and identity · New York
Advertising
6sense
B2B intent data · San Francisco
Data broker
Adform
Ad platform · Copenhagen
Advertising
Adjust
Ad attribution · Berlin
Advertising
Adobe
Marketing analytics and ad platform · San Jose
Data broker, Advertising, Analytics, Marketing
Amazon Ads
Ad network · Seattle
Advertising
Amplitude
Product analytics · San Francisco
Analytics
Awin
Affiliate marketing · Berlin
Advertising
Baidu
Search and analytics · Beijing
Analytics, Advertising
Bombora
B2B intent data · New York
Data broker
Branch
Link and ad attribution · Palo Alto
Advertising
Braze
Customer messaging · New York
Marketing
Chartbeat
Audience analytics · New York
Analytics
Cloudflare Web Analytics
Web analytics (cookieless) · San Francisco
Analytics
Comscore
Audience measurement · Reston
Analytics
Contentsquare
Session recording and analytics · Paris
Session recording
Criteo
Retargeting ad network · Paris
Advertising
Datadog
Performance monitoring · New York
Analytics
Dealfront
B2B visitor identification · Helsinki
Data broker
Demandbase
B2B account data · San Francisco
Data broker
DoubleVerify
Ad verification · New York
Advertising
Epsilon
Marketing data (data broker) · Irving, TX
Data broker, Advertising
Equativ
Ad exchange · Paris
Advertising
Experian
Credit bureau and identity data · Dublin
Data broker
Ezoic
Publisher ad platform · Carlsbad
Advertising
FullStory
Session recording · Atlanta
Session recording
Glassbox
Session recording · Tel Aviv
Session recording
Google
Ad network, analytics and search · Mountain View
Advertising, Analytics
GumGum
Contextual ads · Santa Monica
Advertising
Heap
Product analytics · San Francisco
Analytics
Hotjar
Session recording and heatmaps · St Julian’s
Session recording
HubSpot
Marketing and sales software · Cambridge, MA
Marketing, Data broker
ID5
Shared ad identity · London
Data broker
impact.com
Affiliate marketing · Santa Barbara
Advertising
Index Exchange
Ad exchange · Toronto
Advertising
InMobi
Mobile ads · Bengaluru
Advertising
Integral Ad Science
Ad verification · New York
Advertising
Intercom
Chat and customer messaging · San Francisco
Marketing
Kargo
Mobile ads · New York
Advertising
Klaviyo
Email and SMS marketing · Boston
Marketing
LinkedIn
Professional network and ad platform · Sunnyvale
Advertising, Social
LiveRamp
Identity graph (data broker) · San Francisco
Data broker
LogRocket
Session recording · Boston
Session recording
Lotame
Data platform (data broker) · Columbia, MD
Data broker
Lucky Orange
Session recording · Overland Park
Session recording
Magnite
Ad exchange · Los Angeles
Advertising
Matomo
Web analytics · Wellington
Analytics
Media.net
Contextual ads · Dubai
Advertising
Mediavine
Publisher ad network · Boca Raton
Advertising
Meta
Social network and ad platform · Menlo Park
Social
Microsoft
Ad network and analytics · Redmond
Advertising, Session recording
Mixpanel
Product analytics · San Francisco
Analytics
Mouseflow
Session recording · Copenhagen
Session recording
New Relic
Performance monitoring · San Francisco
Analytics
Nexxen
Video ads · London
Advertising
Nielsen
Audience measurement · New York
Analytics
OpenX
Ad exchange · Pasadena
Advertising
Optimizely
A/B testing · New York
Analytics
Oracle Advertising
Data broker (largely wound down) · Austin
Data broker, Advertising, Social, Marketing
Parse.ly
Audience analytics · San Francisco
Analytics
Permutive
Audience data for publishers · London
Data broker
Piano
Analytics and paywalls · Philadelphia
Analytics
Pinterest
Social network and ad platform · San Francisco
Advertising
PostHog
Product analytics and session recording · San Francisco
Analytics
PubMatic
Ad exchange · Redwood City
Advertising
Quantcast
Audience data and ads · San Francisco
Advertising
Quantum Metric
Session recording · Colorado Springs
Session recording
Rakuten Advertising
Affiliate marketing · Tokyo
Advertising
Raptive
Publisher ad network · New York
Advertising
Reddit
Social network and ad platform · San Francisco
Advertising
RTB House
Retargeting ad network · Warsaw
Advertising
Salesforce
Marketing cloud and audience data · San Francisco
Data broker, Marketing
Seedtag
Contextual ads · Madrid
Advertising
Segment
Customer data platform · San Francisco
Analytics
Sentry
Error monitoring · San Francisco
Analytics
ShareThis
Share buttons and audience data · Palo Alto
Social
Skimlinks
Affiliate links · London
Advertising
Smartlook
Session recording · Brno
Session recording
Snap
Social network and ad platform · Santa Monica
Advertising
Sovrn
Ad exchange · Boulder
Advertising
StatCounter
Web analytics · Dublin
Analytics
Taboola
Content recommendation ads · New York
Advertising
Teads
Content recommendation and video ads · New York
Advertising
The Trade Desk
Ad buying platform and identity (UID2) · Ventura
Advertising
TikTok
Social network and ad platform · Singapore
Advertising
TransUnion
Credit bureau and identity data · Chicago
Data broker
TripleLift
Ad exchange · New York
Advertising
VWO
A/B testing · New Delhi
Analytics
X (Twitter)
Social network and ad platform · San Francisco
Advertising, Social
Yahoo
Ad network · New York
Advertising
Yandex
Search, ads and analytics · Moscow
Analytics, Advertising
Zeta Global
Marketing data (data broker) · New York
Data broker
ZoomInfo
B2B contact data · Vancouver, WA
Data broker