Plain
“Can an API-first customer support platform become the default communication layer for B2B SaaS companies by unifying Slack, Teams, Discord, email, and chat into one programmable surface?”
Founded2020
HQAltrincham, Cheshire, United Kingdom
FoundersSimon Rohrbach, Matt Vagni
Total raised$18.5M
Latest roundLater Stage VC, 2025
IndustryVertical SaaS / Customer Support
The story
Founded in 2020, Plain positioned itself as an API-first customer support platform for modern B2B companies, offering a unified inbox across communication channels including Slack, Microsoft Teams, Discord, and email — competing with traditional help-desk tools like Zendesk and Intercom. The company raised $15M in early 2025 to scale its channel-aggregation and API-driven support infrastructure, targeting developer-centric and SaaS businesses.
Product timeline
2020
Plain founded in the UK as an API-first customer support platform targeting B2B SaaS companies.· pivot
2025
Plain raised $15M to expand its platform for aggregating B2B customer service chats across Slack, Microsoft Teams, Discord, email, and chat.· banking
The stack
Accounting gap: none