33Across
PrivateLast Round
Series C
Jul 19, 2012
Total Funding Raised
$23.35M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
33Across is an ad-tech company that offers a publisher monetization platform to help publishers turn cookieless inventory into addressable and relevant revenue streams.
Sector
Media, Entertainment & Gaming
Verticals
Digital Advertising, Digital Publishing, Digital Identity, Marketing
Business Model
B2B
Customer Profile
Revenue Share, Data as a Service, Marketplace Commission
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
33Across Comparables
Compare 33Across with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Sovrn Holdings, Inc. | 80% | |
| Sonobi | 79% | |
| Index Exchange | 78% |
33Across Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series C | Jul 19, 2012 | ||||
| Series B | Jan 5, 2011 | ||||
| Series A | May 20, 2008 |
Key People
Founding team and executive leadership
33Across Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Flybridge | Series C, Series B |
| Pelion Venture Partners | Series C |
| First Round Capital | Series B, Series A, Series C |
| Greycroft | Series C |
| QED Investors | Series B, Series A |
| Panorama Capital | Series C |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 21, 2026
Monthly visitors increased 34% MoM, reaching 48.1K.
- Jul 20, 2026
Open roles increased from 0 to 37, representing 79% of headcount.
Recent news
Latest coverage and updates
- launchesSep 16, 2026
33Across launched digital advertising platform on Sep 16th '26.
33Across Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about 33Across's valuation, stock price, and market status.
Is 33Across a public or private company?
33Across is a private company.
What is the current stock price of 33Across?
33Across is a private company with no public stock price. No recent secondary market data is available.
How much is 33Across worth (valuation)?
Valuation information for 33Across is not publicly available.
Can I buy 33Across stock?
33Across shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was 33Across's last funding round?
33Across's most recent funding round was Series C on July 19, 2012.
Who are the main investors in 33Across?
Key investors in 33Across include Flybridge, Pelion Venture Partners.
Will 33Across IPO soon?
No public IPO plans have been announced for 33Across.
How can I track 33Across secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor 33Across's secondary market activity and sign up for updates.