Dynamic Signal was a San Bruno, California-based enterprise SaaS company that built a mobile-first Employee Communication and Engagement Platform (ECEP). Founded in 2010 by Russ Fradin, Steve Heyman, and Jim Larrison (the team behind Adify), the company helped large enterprises reach disconnected and frontline workforces with targeted communications, news, and employee advocacy on social channels. Its products included VoiceStorm (employee social advocacy) and a broader workforce communications platform serving HR, Comms, and Marketing leaders. By 2017 the platform was used by nearly 20% of Fortune 500 companies. In June 2021 Dynamic Signal announced a merger with SocialChorus in a transaction led by Sumeru Equity Partners; the deal closed on August 4, 2021, and the combined company rebranded as Firstup later that year. Dynamic Signal no longer operates as an independent entity.
Dynamic Signal has been acquired
This company is no longer available on our private secondary market.
Company data and valuation marks are estimates and may be incomplete, stale, erroneous, or revised.
Founded
2010
Employees
150–200
Total Funding
$104.8M
6 rounds
Latest Valuation
$0.3B
July 31, 2018
Total raised $104.8M across 6 rounds
Funding data and valuation marks are estimates and may be incomplete, stale, erroneous, or revised.
Last updated 06-25-2026
Latest Round
Type
Series E
Date
February 20, 2018
Amount
$36.5M
Valuation
$0.3B
Lead Investors
| Date | Round | Amount Raised | Valuation | Lead Investors |
|---|---|---|---|---|
| July 31, 2018 | Series E (extension) | $10M | — | |
| February 20, 2018 | Series E | $36.5M | $0.3B | Adams Street Partners |
| December 12, 2016 | Series D | $25M | — | Microsoft Ventures |
Eric Brown
CEO (final, pre-merger)
Russ Fradin
Co-Founder & Chairman (former CEO)
Jim Larrison
Co-Founder
Steve Heyman
Co-Founder
Competitor list is illustrative and may be incomplete, stale, or erroneous.
Firstup (SocialChorus)
Direct competitor in employee communications; merged with Dynamic Signal in August 2021 to form Firstup, the surviving combined entity.
Staffbase
German-based employee communications and intranet platform serving frontline and deskless workers; primary post-merger competitor to Firstup.
Workplace from Meta
Meta's enterprise communications product used by large workforces; was a key competitor in employee engagement / internal communications at the time of merger.
Beekeeper
Swiss frontline workforce communications platform competing for the same deskless-worker engagement use case as Dynamic Signal.
Smarp (merged into Haiilo)
Employee advocacy and communications platform that competed directly with Dynamic Signal's VoiceStorm product; later merged into Haiilo.
Bambu by Sprout Social
Employee advocacy product from Sprout Social competing with VoiceStorm's social amplification use case (later discontinued).
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