When was Stack Overflow founded?

Stack Overflow was founded in 2008 and raised its 1st funding round 2 years after it was founded.

Where is Stack Overflow located?

Stack Overflow is headquartered in New York City, United States. It is registered at Všehrdova 449 11800 Praha.

Who is the current CEO of Stack Overflow?

Prashanth Chandrasekar of Stack Overflow. They are also angel investors in 2 startups.

How many employees does Stack Overflow have?

As of May 31, 2026, the latest employee count at Stack Overflow is 629.

Is Stack Overflow a funded company?

Stack Overflow is a funded company, having raised a total of $153M across 5 funding rounds to date. The company's 1st funding round was a $***** Series A round, raised on May 04, 2010.

How much is Stack Overflow worth?

The last known valuation of Stack Overflow was $***** as of Jun 02, 2021.

When was the latest funding round of Stack Overflow?

Stack Overflow's latest funding was a $***** Series E round on Jul 28, 2020, with participation from 6 investors.

Where does Stack Overflow rank among its competitors?

Stack Overflow ranks 1st amongst 79 active competitors, of which 17 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was Key, which secured $4.3M in Mar, 2024.

Who are the top competitors of Stack Overflow?

Stack Overflow's top competitors include JustAnswer, Campuswire and Pulse. Among them, Key secured the most recent funding round in March, 2024.

Stack Overflow - 2026 Company Profile, Team, Funding, Competitors & Financials

Q: Is Stack Overflow an acquired company?

Stack Overflow got acquired by Prosus on Jun 02, 2021.

Stack Overflow is an acquired company based in New York City (United States), founded in 2008 by Joel Spolsky and Jeff Atwood. It operates as a Social platform for IT professionals & programmers. Stack Overflow has raised $153M in funding from investors like Andreessen Horowitz, Index Ventures and Union Square Ventures, with last known valuation of $*****. The company has 79 active competitors, including 17 funded and 8 that have exited. Its top competitors include companies like JustAnswer, Campuswire and Pulse.

Company Details

Stack Overflow is a question and answer website for professional and enthusiast programmers. It also hosts a hiring platform, Stack Overflow Careers which helps its users connect with top employers all around the world to find new programming opportunities. Its a part of Stack exchange, a network of free, community-driven Q&A websites.

Website: stackoverflow.com
Social
Email ID: *****@stackoverflow.com
Phone Number: +1 **********
Registered Address: Všehrdova 449 11800 Praha

Key Metrics

Founded Year

2008

Location

New York City, United States

Stage

Acquired

Total Funding

$153M in 5 rounds

Latest Funding Round

Series E, Jul 28, 2020, $*****

Last Known Valuation

$***** as on Jun 02, 2021

Investors

Andreessen Horowitz & 18 more

Ranked

1^st among 79 active competitors

Employee Count

629 as on May 31, 2026

Similar Companies

JustAnswer & 56 more

Exit Details

Acquired by Prosus (Jun 02, 2021)

View Stack Overflow's full profile

Stack Overflow is associated with 25 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
Stack Overflow GmbH CIN: D2601_HRB234500 , Germany, Active	Jul 17, 2017	-	-
INVALAS, s.r.o. CIN: 28742141 , Czech Republic, Active	Apr 13, 2011	-	-
KEYCODE13 d.o.o. CIN: 42306696273 , Croatia, Active	Apr 09, 2019	$0 - $1M (As on Dec 31, 2019)	-
NOVICE INT. a.s. CIN: 25637053 , Czech Republic, Active	Jan 08, 1998	-	-
GOLD IDEA s.r.o. CIN: 29413869 , Czech Republic, Active	Jan 25, 2013	-	-
TH.data a.s. CIN: 26172658 , Czech Republic, Active	Apr 26, 2000	-	-
SH GEO s.r.o. CIN: 17817820 , Czech Republic, Active	Dec 09, 2022	-	-
SAVE ON ROAMING GROUP s.r.o. CIN: 29416663 , Czech Republic, Active	Feb 01, 2013	-	-
SED TRAINING LTD CIN: 12847115 , United Kingdom, Active	Aug 30, 2020	$0 - $1M (As on Aug 31, 2022)	1 (As on Aug 31, 2022)
STACK EXCHANGE, INC. CIN: 272445468 , United States, Active	Dec 31, 1999	-	244 (As on Dec 31, 2024)	-
JBR lab s.r.o. CIN: 21029318 , Czech Republic, Active	Jan 03, 2024	-	-
JDK Management s.r.o. CIN: 21396973 , Czech Republic, Active	Mar 23, 2024	-	-
AG Line, a.s. CIN: 46357327 , Czech Republic, Active	Jul 13, 1994	-	-
STACKTRACE LIMITED CIN: 5545146 , United Kingdom, Active	Aug 23, 2005	$0 - $1M (As on Aug 31, 2024)	1 (As on Aug 31, 2024)
BigInteger, s.r.o. CIN: 19984138 , Czech Republic, Active	Dec 05, 2023	-	-
PK REST a.s. CIN: 49902547 , Czech Republic, Active	Jan 01, 1994	-	-
STACK INTERACTIVE LIMITED CIN: 11597256 , United Kingdom, Active	Sep 30, 2018	$0 - $1M (As on Oct 31, 2022)	-
Andro clean s.r.o. CIN: 09214101 , Czech Republic, Active	Jun 02, 2020	-	-
VM, spol.s r.o. CIN: 49686631 , Czech Republic, Active	Oct 13, 1993	-	-
QWER-99 v.o.s. CIN: 25742523 , Czech Republic, Active	Mar 03, 1999	-	-
bigstyle, a.s. CIN: 28460707 , Czech Republic, Active	Sep 22, 2008	-	-
AC PROJEKT CIN: 41203054562 , Latvia, Active	Apr 07, 2015	$0 - $1M (As on Dec 31, 2024)	1 (As on Dec 31, 2022)	-
MK Exp-imp s.r.o. CIN: 07417870 , Czech Republic, Active	Aug 30, 2018	-	-
Unitalk Technology s.r.o. CIN: 18021760 , Czech Republic, Active	Feb 08, 2023	-	-
STACK EXCHANGE, INC. CIN: 10027616 , United States, Active	Feb 26, 2015	-	-	-

Stack Overflow got acquired by Prosus on Jun 02, 2021 at an acquisition amount of $*****.

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

Stack Overflow has raised a total funding of $153M over 5 rounds. Its first funding round was on May 04, 2010. Its latest funding round was a Series E round on Jul 28, 2020 for $*****. 6 investors participated in its latest round. Stack Overflow has 11 institutional investors and 8 angel investors.

Here is the list of recent funding rounds of Stack Overflow:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Jul 28, 2020	9732448	Series E	6678988	3594311	8272937	4705948
Jan 20, 2015	8541496	Series D	5155381	3906285	8331828	Bezos Expeditions & 3 more
2013	1151	Series C	9477	1599	Bezos Expeditions	8098

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View details of Stack Overflow's funding rounds and investors

The founders of Stack Overflow are Joel Spolsky and Jeff Atwood. Prashanth Chandrasekar is the CEO of Stack Overflow.

Here are the details of Stack Overflow's key team members:

Joel Spolsky: Former Co-Founder of Stack Overflow and founder of 8 other companies, including Fog Creek Software, Manuscript and Hyperdev. They are also an angel investor in 2 startups.
Contact Info: 1 email address
Jeff Atwood: Co-Founder of Stack Overflow.
Contact Info: 1 email address
Prashanth Chandrasekar: CEO of Stack Overflow. They are also an angel investor in 2 startups.
Contact Info: 1 email address

View details of Stack Overflow's Founder profiles and Board Members

Stack Overflow's employee count trend

Stack Overflow has 629 employees as of May 26. Here is Stack Overflow's employee count trend over the years:

Uncover Stack Overflow's growth story! Sign up today!

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Top competitors of Stack Overflow include JustAnswer, Campuswire and Pulse. Here is the list of Top 10 competitors of Stack Overflow, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Stack Overflow 2008, New York City (United States), Acquired	Social platform for IT professionals & programmers	$153M	GIC, Index Ventures & 17 others	74/100
2nd	JustAnswer 2003, Covina (United States), Series B	Online platform providing expert advice and answers to various questions from verified professionals in different fields	$50.7M	Glynn Capital, Crosslink Capital & 1 others	63/100
3rd	Campuswire 2016, San Francisco (United States), Series A	Online platform offering Q&A-based learning solutions	$32.6M	Bloomberg Beta, Rethink Capital Partners ... & 15 others	53/100
4th	Pulse 2018, San Francisco (United States), Series A	Provider of Q and A platform to enterprises	$10.6M	True Ventures, AV8 Ventures & 11 others	50/100
5th	daily.dev 2019, Holon (Israel), Seed	Online news aggregator platform for the IT industry	$11M	Aleph, Jibe Ventures & 4 others	50/100
6th	Codemotion 2011, Rome (Italy), Series B	Social networking platform for IT professionals and tech companies	$19.6M	Primo Ventures, CDP Venture Capital & 7 others	48/100
7th	Round 2021, Seattle (United States), Series A	Online social platform for tech enthusiasts	$12M	Primary Venture Partner, Moai Capital & 1 others	48/100
8th	SegmentFault 2012, Hangzhou (China), Series A	Social Q&A for Programmers	$1.61M	IDG Capital, SAIF Partners & 2 others	48/100
9th	Key 2023, Palo Alto (United States), Series A	AI powered community and events app for purpose management	$4.3M	Felicis Ventures, Shibuya Startups & 19 others	43/100
10th	MyColorScreen 2011, Irvine (United States), Seed	Social Community for Device enthusiasts	$500K	-	41/100