When was Tumblr founded?

Tumblr was founded in 2007 and raised its 1st funding round within a year of its incorporation.

Where is Tumblr located?

Tumblr is headquartered in New York City, United States. It is registered at Torshovgata 16A, 0476, OSLO.

Who is the current CEO of Tumblr?

Campbell Phillips and Judyth Santos s of Tumblr. Campbell Phillips has also founded 1 company.

How many employees does Tumblr have?

As of Jul 31, 2026, the latest employee count at Tumblr is 1922.

Is Tumblr a funded company?

Tumblr is a funded company, having raised a total of $120M across 7 funding rounds to date. The company's 1st funding round was a $***** Series A round, raised on Oct 19, 2007.

How much is Tumblr worth?

The last known valuation of Tumblr was $***** as of Sep 28, 2011.

When was the latest funding round of Tumblr?

Tumblr's latest funding was a $***** Series E round on May 05, 2014, with participation from 1 investor. Its primary sector is Digital Publishing Platforms. In United States, the Digital Publishing Platforms sector has seen $42.7M in funding in 2026 to date.

Where does Tumblr rank among its competitors?

Tumblr ranks 3rd amongst 597 active competitors, of which 48 are funded. It stands 3rd in terms of total funding among its competitors. The most recent competitor to raise funding was Reddit, which secured $410M in Aug, 2021.

Who are the top competitors of Tumblr?

Tumblr's top competitors include FANDOM, Reddit and Amino Apps. Among them, Reddit secured the most recent funding round in August, 2021.

Tumblr - 2026 Company Profile, Team, Funding & Competitors

Tumblr is an acquired company based in New York City (United States), founded in 2007 by Campbell Phillips. It operates as an Operator of a social networking platform for content sharing. Tumblr has raised $120M in funding from investors like Union Square Ventures, Spark Capital and Greylock Partners, with last known valuation of $*****. The company has 597 active competitors, including 48 funded and 22 that have exited. Its top competitors include companies like FANDOM, Reddit and Amino Apps.

Company Details

Operator of a social networking platform for content sharing. The platform allows users to explore trending topics and communities. It provides options to change the color palette. Users can sign up and log in to access the platform's features.

Website: www.tumblr.com/
Social
Registered Address: Torshovgata 16A, 0476, OSLO

Key Metrics

Founded Year

2007

Location

New York City, United States

Stage

Acquired

Total Funding

$120M in 7 rounds

Latest Funding Round

Series E, May 05, 2014, $*****

Last Known Valuation

$***** as on Sep 28, 2011

Investors

Union Square Ventures & 17 more

Ranked

3^rd among 597 active competitors

Employee Count

1,922 as on Jul 31, 2026

Investment & Acquisitions

Frontity

Similar Companies

FANDOM & 1028 more

Exit Details

Acquired by Automattic (Aug 12, 2019)

View Tumblr's full profile

Tumblr is associated with 2 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
LMK Real a.s. CIN: 03620891 , Czech Republic, Active	Dec 04, 2014	-	-
DRÅPE MUSIC DA CIN: 999509630 , Norway, Active	Jan 03, 2013	-	-

Tumblr got acquired by Automattic on Aug 12, 2019.

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

Tumblr has raised a total funding of $120M over 7 rounds. Its first funding round was on Oct 19, 2007. Its latest funding round was a Series E round on May 05, 2014 for $*****. 1 investor participated in its latest round. Tumblr has 17 institutional investors and 1 angel investor.

Here is the list of recent funding rounds of Tumblr:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
May 05, 2014	3460975	Series E	9863194	4892429	3109006	9758235
May 02, 2012	4533050	Series E	9607717	3410678	4487741	4471443
Sep 28, 2011	5689027	Series E	9754824	7058455	Greylock Partners & 1 more	Sequoia Capital & 3 more

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View details of Tumblr's funding rounds and investors

The founders of Tumblr is Campbell Phillips. Campbell Phillips and Judyth Santos are the CEOs of Tumblr.

Here are the details of Tumblr's key team members:

Campbell Phillips: Founder & Co-CEO of Tumblr.
Judyth Santos: Co-CEO of Tumblr.

View details of Tumblr's Founder profiles and Board Members

Tumblr's employee count trend

Tumblr has 1,922 employees as of Jul 26. Here is Tumblr's employee count trend over the years:

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Top competitors of Tumblr include FANDOM, Reddit and Amino Apps. Here is the list of Top 10 competitors of Tumblr, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	FANDOM 2005, San Francisco (United States), Series E	Online social platform for media enthusiasts	$191M	Amazon, Bessemer Venture Partners & 16 others	75/100
2nd	Reddit 2005, San Francisco (United States), Public	Online platform for communities and human connection	$1.3B	Fidelity Investments, Sequoia Capital & 18 others	71/100
3rd	Tumblr 2007, New York City (United States), Acquired	Operator of a social networking platform for content sharing	$120M	Millennium Technology Value Partners, Sequoia Capital ... & 16 others	67/100
4th	Amino Apps 2011, New York City (United States), Series C	Online communities enabler	$72.4M	Google Ventures, SV Angel & 16 others	64/100
5th	Threads 2017, San Francisco (United States), Acquired	Platform offering text-based conversation and community networking solutions	$10.5M	Sequoia Capital, MaC Venture Capital & 2 others	63/100
6th	Whisper 2012, Santa Monica (United States), Series C	Social platform for local anonymous discussions	$61M	Sequoia Capital, Thrive Capital & 12 others	62/100
7th	Mix 2016, San Francisco (United States), Funding Raised	Community platform to discover & share entertaining content	-	Sherpalo Ventures, Expa	61/100
8th	State 2010, London (United Kingdom), Deadpooled	Social platform for public opinions	$14M	Al Sms, Columbus Capital Ltd & 73 others	56/100
9th	ArtStation 2014, Montreal (Canada), Acquired	Showcasing platform for games, film, media, and entertainment artists	-	-	55/100
10th	InterNations 2007, Munich (Germany), Acquired	Online expatriate Community and Network	-	HV Capital, ASTUTIA Ventures & 1 others	53/100