System1

Adtech / digital advertisingUSA
New to Unitard
πŸ“‰ Public < $1B
PeakΒ $1.4 BillionToday
βˆ’98%
from peak
  1. πŸ¦„
    Became a unicorn
    2022
  2. πŸ“ˆ
    Peak valuation
    $1.4 Billion ’22
  3. πŸ’”
    Became a Unitard
    2022
  4. πŸ’Έ
    Last valuation
    ~$28M
Current status
Public (NYSE: SST); did a 1-for-10 reverse split
Live Β· SSTΒ· NYSE
as of 2026-09-17
$3.22β–Ό 16.15% today
β‰ˆΒ $28 Million market cap Β· βˆ’98.0% from peak

The rise & fall

7 moments Β· 2013–2025

The key moments, with employee sentiment along the way.

2013
Founded as OpenMail
An ad-arbitrage shop that buys traffic and sells intent; it later renames itself System1.
Wikipedia
Jan 2022
The peak: a $1.4B SPAC debut$1.4B
Merges with Trebia Acquisition Corp at a $1.4B enterprise value and lists as NYSE: SST β€” unicorn and peak on the same day.
S&P Global
2022
Slips out of the club
The de-SPAC pop never comes: Apple and Google privacy changes and a softening ad market hammer the search-arbitrage business in year one.
CNBC
2023
Revenue halves
FY2023 revenue falls 51% while roughly $308M of debt weighs on the balance sheet.
S&P Global
From the inside Β· Glassdoor reviews, 2022–24
Glassdoor reviews from the post-IPO years described a well-liked culture cooling after the listing: repeated layoff rounds β€” some employees counted several in a year as the shares fell β€” frequent strategy shifts, and editorial work handed over to AI.
Jun 2025
A 1-for-10 reverse split
The stock has slid far enough that ten old shares become one new one to keep the listing presentable.
S&P Global
Today
Still in the club β€” and still trading
Live Β· SST Β· NYSEas of 2026-09-17
$3.22β–Ό 16.15% todayβ‰ˆ $28M cap Β· βˆ’98.0% from peak

πŸ’¬ entries paraphrase anonymous, unverified reviews posted publicly on Glassdoor β†—; dated facts carry their source.

How it happened

System1 runs a 'responsive acquisition marketing platform' and owns properties like the privacy search engine Startpage; it went public in January 2022 via a SPAC merger at a $1.4B enterprise value.

Apple and Google privacy changes and a softening ad market hammered its search-arbitrage business β€” 2023 revenue fell 51% β€” while heavy debt weighed on the balance sheet, collapsing the stock and forcing a 1-for-10 reverse split in 2025.

Source: Wikipedia / CNBC / S&P Global ($1.4B enterprise value via Trebia Acquisition Corp SPAC, Jan 2022; FY2023 revenue -51%; 1-for-10 reverse split June 2025; ~$308M debt)

Founders

  • Michael Blend
    Co-founder, Chairman & CEO (current)
    Still there β€” CEO, Chairman & Co-FounderLinkedIn β†—
  • Chuck Ursini
    co-founder
    Still there β€” President & COO, Co-Founder & Board MemberLinkedIn β†—
  • John Fries
    co-founder
    Now Co-Founder at UpJump MediaLinkedIn β†—

Current roles as self-reported on LinkedIn, retrieved 2026-08-19. See our methodology.

More from the club

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