When was Open Slate founded?

Open Slate was founded in 2012 and raised its 1st funding round within a year of its incorporation.

Where is Open Slate located?

Open Slate is headquartered in New York City, United States.

Who is the current CEO of Open Slate?

Mike Henry of Open Slate. They have also founded 1 company.

How many employees does Open Slate have?

As of Aug 31, 2026, the latest employee count at Open Slate is 10.

Is Open Slate a funded company?

Open Slate is a funded company, having raised a total of $25.6M across 6 funding rounds to date. The company's 1st funding round was a $***** Series A round, raised on Apr 11, 2012.

When was the latest funding round of Open Slate?

Open Slate's latest funding was a $***** Series A round on Sep 20, 2019, with participation from 1 investor. Its primary sector is AdTech. In United States, the AdTech sector has seen $1.54B in funding in 2026 to date.

Where does Open Slate rank among its competitors?

Open Slate ranks 13th amongst 244 active competitors, of which 43 are funded. It stands 7th in terms of total funding among its competitors. The most recent competitor to raise funding was Comscore, which secured an undisclosed amount in Jan, 2026.

Who are the top competitors of Open Slate?

Open Slate's top competitors include data.ai, Singular and Comscore. Among them, Comscore secured the most recent funding round in January, 2026.

Open Slate - 2026 Company Profile, Team, Funding & Competitors

Q: Is Open Slate an acquired company?

Open Slate got acquired by DoubleVerify on Nov 10, 2021.

Company Details

Contextual analytics for digital video content. The platform collects data about ad-supported videos on YouTube and analyzes and scores the content based on quality, brand safety, audience, and others. Advertisers can use the data to build their custom audience segment and target the segments. The data is updated on a daily basis and integrated with the advertisers' ad campaign. The data is used for pre-roll and trueview Youtube campaigns. Clientele includes Microsoft, Ford, Starbucks, Colgate, Unilever, Publicis Groupe, IBM, Nintendo, and others.

Website: openslate.com
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Email ID: *****@openslate.com
Part Of

Key Metrics

Founded Year

2012

Location

New York City, United States

Stage

Acquired

Total Funding

$25.6M in 6 rounds

Latest Funding Round

Series A, Sep 20, 2019, $*****

Investors

Spring Mountain Capital & 6 more

Ranked

13^th among 244 active competitors

Employee Count

10 as on Aug 31, 2026

Similar Companies

data.ai & 330 more

Exit Details

Acquired by DoubleVerify (Nov 10, 2021)

View Open Slate's full profile

Open Slate got acquired by DoubleVerify on Nov 10, 2021 at an acquisition amount of $*****.

Click here to take a look at Open Slate's acquisition in detail

Open Slate has raised a total funding of $25.6M over 6 rounds. Its first funding round was on Apr 11, 2012. Its latest funding round was a Series A round on Sep 20, 2019 for $*****. 1 investor participated in its latest round. Open Slate has 7 institutional investors.

Here is the list of recent funding rounds of Open Slate:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Sep 20, 2019	2650038	Series A	6515861	1427403	8766415	2176709
May 01, 2017	6966086	Series A	7663814	8794683	5435975	7905677
Aug 19, 2016	5036935	Series A	1670393	1831368	4268787	5646218

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View details of Open Slate's funding rounds and investors

The founders of Open Slate is Mike Henry. Mike Henry is the CEO of Open Slate.

Here are the details of Open Slate's key team members:

Mike Henry: Founder & CEO of Open Slate.

View details of Open Slate's Founder profiles and Board Members

Open Slate's employee count trend

Open Slate has 10 employees as of Aug 26. Here is Open Slate's employee count trend over the years:

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Top competitors of Open Slate include data.ai, Singular and Comscore. Here is the list of Top 10 competitors of Open Slate, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	data.ai 2010, San Francisco (United States), Acquired	AI based market data analysis for generating consumer insights	$157M	Greycroft, Sequoia Capital & 16 others	81/100
2nd	Singular 2014, Tel Aviv (Israel), Series B	Marketing analytics and attribution platform	$50M	TransLink Capital, Norwest & 9 others	71/100
3rd	Comscore 1976, Reston (United States), Public	Provider of cross-platform audience and advertising measurement and analytics services	$87M	Adams Street Partners, Signal Peak & 22 others	69/100
4th	EDO 2014, Los Angeles (United States), Series B	Platform offering campaign analytics software	$92.4M	Shamrock Capital Advisors, WGI Group & 6 others	66/100
5th	TapClicks 2011, San Jose (United States), Series A	Provider of marketing operations platform with reporting, analytics, and workflow tools	$23.5M	Boathouse Capital, IVA Ventures & 2 others	64/100
6th	IGAWorks 2006, Seoul (South Korea), Series C	Demad side advertising platform	$10.9M	SBVA, Premier Partners & 19 others	61/100
7th	MediaRadar 2006, New York City (United States), Series C	Advertising intelligence platform empowering brands, agencies, publishers, and platforms	$6.7M	Bain Capital Ventures, Endicott Group & 4 others	60/100
8th	Flurry 2005, San Francisco (United States), Acquired	Mobile app analytics platform empowering app growth through data-driven insights	$63M	Crosslink Capital, Menlo Ventures & 12 others	57/100
9th	Happydemics 2013, Paris (France), Series B	Feedback collection tool for businesses	$29.4M	Adelie, Kima Ventures & 11 others	56/100
10th	Sounder 2019, New York City (United States), Acquired	AI based audio intelligence platform	$12.2M	Ulu Ventures, iHeartMedia & 10 others	55/100
13th	Open Slate 2012, New York City (United States), Acquired	Contextual analytics for digital video content	$25.6M	Realization Capital Partners, Spring Mountain Capital ... & 5 others	50/100