The largest US-headquartered employee communications platform — built from the 2021 SocialChorus and Dynamic Signal merger, now serving more than 40 percent of the Fortune 100.
Firstup formed in 2021 when SocialChorus and Dynamic Signal merged under common ownership and rebranded. The combined company is the largest US-based pure-play in the category, with named customers including Walmart, Estée Lauder, Hilton, Ford, and Bayer.
At a Glance
- Company: Firstup
- Headquarters: San Francisco, CA
- Founded: 2021 (post-merger; SocialChorus 2008, Dynamic Signal 2010)
- Funding: Backed by Sumeru Equity Partners, Salesforce Ventures, Northgate Capital
- Customer count: Used by more than 40 percent of the Fortune 100
- Notable customers: Walmart, Estée Lauder, Hilton, Ford, Bayer, Amazon
- Category: Employee experience platform — communications, intranet, journey orchestration
What Firstup Does
Firstup runs as an employee experience platform — multi-channel delivery (app, email, SMS, intranet, digital signage), audience segmentation, journey orchestration, and analytics under one console. It is the most enterprise-skewed product in the category.





