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OPENX
OpenX
AdTech · Pasadena, California · United States · Founded · 2009 · ≈ · 400 · employees

OpenX — Valuation, Funding & Investors

Private

OpenX is a private company building in adtech, founded in 2009. The stock is not listed on any public market.

ProfileValuationFundingCompetitorsStock & IPOHow to invest
OpenX at a glance
Last valuation
Raised across rounds
$38M
4 rounds
IPO status
Private
no listing announced
Nearest Canborsa market
SP500—
SP500-PERP · live
OpenX
Valuation history

OpenX valuation history

OpenX has no published valuation.

Funding history

OpenX funding rounds — every disclosed raise

Round
Date
Amount
Valuation
Lead investors
Δ valuation
Series A
Jun 2007
—
—
—
—
Series B
Jan 2008
$15.5M
—
Accel Partners
—
Series C
May 2009
—
—
—
—
Series E
Jan 2013
$22.5M
—
Samsung Venture Investment Corporation
—
OpenX · investors

Investors

SSamsung Venture Investment CorporationLEADAccel PartnersLEADIndex VenturesDDAG VenturesSSAP Ventures
Will OpenX IPO?
Founded
2009
Jun 2007
Series A
Jan 2013
Series E
IPO
Not announced
No filing has been made.
OpenX — the private market
Total raised$38M
Lead investors
Samsung Venture Investment CorporationAccel Partners
IPO statusNot announced
Founded · HQ2009 · Pasadena, California · United States
Employees≈ 400
Next price updatethe next funding round or secondary sale
Between roundsno daily price and no order book
About OpenX

OpenX operates a supply-side advertising platform that lets publishers auction digital ad inventory across connected TV, mobile apps, mobile web and desktop. Founded in 2008 in Pasadena, California, the company grew out of an open-source ad server project that began in 1998 before OpenX commercialized it under CEO Tim Cadogan.

OpenX's OpenAudience identity graph covered more than 237 million U.S. users and 150 million connected TV devices by 2025, and the company has offices in Pasadena, New York, Tokyo, London and Kraków.

The money screen · ranked by accessibility

How to get OpenX exposure today

1Funds that hold private namesPublic wrappers

Listed funds carry late-stage private names. A fund's latest schedule of investments shows whether it holds OpenX.

Often trade at a premium or discount to NAV.

Any brokerage account
2Secondary marketplacesPrivate shares

Platforms match existing holders with buyers. OpenX availability at any moment is set by the holders.

High minimums, transfer approval, company right-of-first-refusal.

Accredited only
3Follow the companyCompanies directory

Valuations, rounds and IPO status for every company in the directory — OpenX included.

No account needed

OpenX stock — frequently asked questions

Is OpenX publicly traded?›

No. OpenX is a private company; its shares do not trade on a public exchange.

Who are OpenX's competitors?›

The closest adtech peers are on the competitors page.

How can I get exposure to OpenX?›

The routes section explains what is realistically available for a company at this stage.

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