When was Posterous founded?

Posterous was founded in 2008 and raised its 1st funding round within a year of its incorporation.

Where is Posterous located?

Posterous is headquartered in San Francisco, United States.

Who is the current CEO of Posterous?

Sachin Agarwal of Posterous. They are also angel investors in 5 startups, including .

How many employees does Posterous have?

As of Jan 31, 2026, the latest employee count at Posterous is 21.

Is Posterous a funded company?

Posterous is a funded company, having raised a total of $10.1M across 4 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on May 2008.

How much is Posterous worth?

The last known valuation of Posterous was $***** as of May 01, 2008.

When was the latest funding round of Posterous?

Posterous' latest funding was a $***** Series B round on Sep 17, 2011, with participation from 2 investors. 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 Posterous rank among its competitors?

Posterous ranks 5th amongst 814 active competitors, of which 17 are funded. It stands 4th in terms of total funding among its competitors. The most recent competitor to raise funding was Every, which secured $2M in May, 2025.

Who are the top competitors of Posterous?

Posterous' top competitors include Yandex, Wordpress and Spectee. Among them, Every secured the most recent funding round in May, 2025.

Posterous - 2026 Company Profile, Team, Funding & Competitors

Company Details

Online blogging platform for users. Mobile methods include sending an email, with attachments of photos, MP3s, documents, and video. It allows users to point the DNS listing for a domain name or subdomain they already owned.

Website: posterous.com
Social

Key Metrics

Founded Year

2008

Location

San Francisco, United States

Stage

Acqui-Hired

Total Funding

$10.1M in 4 rounds

Latest Funding Round

Series B, Sep 17, 2011, $*****

Last Known Valuation

$***** as on May 01, 2008

Investors

Redpoint Ventures & 16 more

Ranked

5^th among 814 active competitors

Employee Count

21 as on Jan 31, 2026

Investment & Acquisitions

Slinkset

Similar Companies

Yandex & 921 more

View Posterous' full profile

Posterous has raised a total funding of $10.1M over 4 rounds. Its first funding round was on May 2008. Its latest funding round was a Series B round on Sep 17, 2011 for $*****. 2 investors participated in its latest round. Posterous has 11 institutional investors and 6 angel investors.

Here is the list of recent funding rounds of Posterous:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Sep 17, 2011	4185433	Series B	8725798	6134736	1341892	3283868
Mar 05, 2010	6945477	Series A	6550958	4851084	2777087	SV Angel & 6 more
Dec 22, 2008	7711162	Seed	5477084	4549009	Satish Dharmaraj & 1 more	XG Ventures & 2 more

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View details of Posterous's funding rounds and investors

The founders of Posterous are Garry Tan, Sachin Agarwal and Brett Gibson.

Here are the details of Posterous' key team members:

Garry Tan: Former Co-Founder of Posterous and founder of 1 other company. They are also an angel investor in 54 startups and serve on the boards of 3 companies.
Contact Info: 2 email addresses
Sachin Agarwal: Founder/CEO/Board of Directors of Posterous. They are also an angel investor in 5 startups.
Contact Info: 1 email address
Brett Gibson: Co-Founder of Posterous.

View details of Posterous's Founder profiles and Board Members

Posterous' employee count trend

Posterous has 21 employees as of Jan 26. Here is Posterous's employee count trend over the years:

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Top competitors of Posterous include Yandex, Wordpress and Spectee. Here is the list of Top 10 competitors of Posterous, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Yandex 2000, Moscow (Russia), Public	Blog focusing on music, market, video, and other related topics	-	Middleland Capital, Uber & 10 others	69/100
2nd	Wordpress 2005, United States, Public	Provider of website hosting, domain name registration, and website building	$28K	Orange, 8200 EISP & 11 others	64/100
3rd	Spectee 2014, Tokyo (Japan), Series C	Real time photos and video distribution platform	$16.7M	Dai-Ichi Life, NTT DATA & 12 others	54/100
4th	Koo 2015, Bengaluru (India), Deadpooled	Vernacular-based microblogging social platform	$70M	3one4 Capital, Tiger Global Management & 98 others	52/100
5th	Posterous 2008, San Francisco (United States), Acqui-Hired	Online blogging platform for users	$10.1M	Icon Ventures, Redpoint Ventures & 15 others	45/100
6th	Blogspace 2020, Unfunded	Mobile blogging platform	-	-	43/100
7th	Every 2020, New York City (United States), Seed	Online platform allowing users to publish articles	$2M	Bedrock, Prehype & 7 others	43/100
8th	Writing.Com 1997, United States, Unfunded	Digital platform for writing blogs	-	-	42/100
9th	Bloglovin' 2008, New York City (United States), Series A	Aggregator of blogs	$11.1M	Northzone, Betaworks & 7 others	41/100
10th	Hatena 2001, Kyoto (Japan), Unfunded	Online platform for blogging	-	-	40/100