- Freshdesk
- Freshsales classic
- Fluent Forms
- Fomo
- Feedier
- Facebook Lead Ads
- Facebook Pages
- Facebook Custom Audiences
- Facebook Conversions
- Freedcamp
- Formsite
- Formidable Forms
- Follow Up Boss
- FreshBooks
- Front
- Fluent CRM
- Freshservice
- Funnel-Tunnel
- Firebase / Firestore
- Formstack Documents
- Formstack Forms
- Flowlu
- FastField Mobile Forms
- Freshworks CRM (Freshsales Suite)
- Frill
- FunnelFLARE
- FormKeep
- Float
- Funky Media Agency
- Folioze
- Fresh Learn
- Filestage
- Flowster
- Favro
- Flexie CRM
- FUNNELKING
- FeedBlitz
- Freshping
- Flock
- FreeAgent
- 4Leads
- Finmo
- Formaloo
- FullContact
- FastSpring
- FormCan
- Funnel Premium
- FastPages
- Files.com
- forms.app
- Funnelquik
- Firmao
- FormCrafts
- Formium
- Foleon
- Fluid Pay
- Fast2SMS
- Flodesk
- Facebook Messenger
- Fusioo
- FacturaDirecta
- Findymail
- Free Short URL
- Freshchat
- FastBill
- Factors.ai
- Flutterwave
- FillFaster
- Form2chat.io
- Formspark
- Flexmail
- Force Manager
- Form-Data
- Fingertip
- Formester
- Fillout Forms
- Firecrawl