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Slack Overview

Slack is an American cloud-based set of proprietary team collaboration software tools and online services, developed by Slack Technologies. Slack began as an internal tool for Stewart Butterfield's company Tiny Speck during the development of Glitch, a defunct online game.
Founded in 2009, Slack is an established company that loves to hire graduates from Rowan University, with 29.4% of its employees having attended Rowan University. Want to compare Slack to some other great places to work in San Francisco, CA? We suggest taking a look at Zippia's list of Best Companies to Work For in San Francisco, CA. The average employee at Slack makes $87,570 per year, which is competitive for its industry and location. Some of its highest paying competitors, Pluralsight, Spotzer, and The Rocket Science Group, pay $88,324, $85,332, and $84,943, respectively.
A large technology company with 1,502 employees and an annual revenue of $401.0M, Slack is headquartered in San Francisco, CA.

The Organization’s Mission

The mission is to make people's working lives simpler, more pleasant, more productive.







Founded in



San Francisco, CA


Organization Type


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The Team At Slack

The Culture At Slack

Information provided by the company
A curiosity about how things work. An eagerness to jump in and help fix things.
History of thriving in a high growth environment. Enthusiasm for increasing customer adoption and delivering value with Slack.
At Slack, our mission is to make people's working lives simpler, more pleasant and more productive. We have a healthy roster of high-profile companies that rely on Slack for their day-to-day work, and we want to provide them with the best service possible.
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You are an inventive self-starter who is comfortable with autonomy and passionate about transformational technology.
You are passionate about being part of a fast-growing company whose platform is transforming the way we all work.
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What do people say about Slack

Work at Slack? Share your experience anonymously.

What do you like about working for Slack?

Slack Rankings

Slack is ranked #18 on the Best Technology Companies to Work For in San Francisco, CA list. Zippia's Best Places to Work lists provide unbiased, data-based evaluations of companies. Rankings are based on government and proprietary data on salaries, company financial health, and employee diversity.

Read more about how we rank companies.

Slack Salaries

How much does Slack pay?
The national average salary for a Slack employee in the United States is $87,570 per year. Employees in the top 10 percent can make over $151,000 per year, while employees at the bottom 10 percent earn less than $50,000 per year.
Salary Score
Average Employee Earnings

Slack Salaries By Job Title

While Slack employees earn an average yearly salary of $87,570, different roles can command different wages. Some of the positions that earn high wages at Slack include associate counsel, lead programmer, enterprise account executive, and engineering manager. A worker with the title associate counsel salary at Slack can earn an average yearly salary of $242,383. To get a better sense of the salaries at Slack, other roles such as waitress and receptionist can be considered as well. For comparison, the title waitress at Slack earns $23,244 per year.
Job Title
Average Salary
Associate Counsel
Salary Range208k - 281k$242k$242,383
Lead Programmer
Salary Range127k - 184k$153k$153,265
Enterprise Account Executive
Salary Range125k - 160k$142k$141,895
Engineering Manager
Salary Range110k - 162k$134k$134,360
Technology Architect
Salary Range106k - 141k$123k$122,848
Senior Software Engineer
Salary Range103k - 140k$121k$120,559
Salary Range82k - 165k$117k$116,980
Senior Engineer
Salary Range99k - 131k$114k$114,416
Data Scientist
Salary Range92k - 140k$114k$114,125
Business Operations Analyst
Salary Range84k - 120k$101k$101,048

Slack Careers

On average, employees at Slack stay with the company for 3.2 years. Employees most commonly join Slack after leaving Daily Journal. When they leave Slack, they most frequently get their next job at Taylor & Francis Books.

Average Length of Employment

BNP Media
4.1 years
3.2 years
Mass Media
2.5 years

Top Employers Before Slack

Slack Employee Demographics

Diversity Score
We calculated the diversity score of companies by measuring multiple factors, including the ethnic background, gender identity, and language skills of their workforce.

Slack Employees Education

Of the 1,502 employees at Slack, 29.4% attended Rowan University. Employees at Slack most frequently majored in Journalism, and most employees’ highest level of education is a Bachelors.

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Slack Employee Political Affiliation

Slack employees are most likely to be members of the Democratic Party. The largest donation made to a political party by a Slack employee was by Daniel Butterfield. Daniel Butterfield donated $164,650 to the Democratic Party.

Employee Political Donations

NameJob TitlePartyDonation
Daniel ButterfieldExecutive
Daniel Butterfield
Democratic Party
Democratic Party
$164,650Democratic Party
Michael SlackAttorney
Michael Slack
Democratic Party
Democratic Party
$12,500Democratic Party
Andrew TimmonsSoftware Engineeer
Andrew Timmons
Software Engineeer
Software Engineeer
Democratic Party
Democratic Party
$9,800Democratic Party
April UnderwoodVice President-Products
April Underwood
Vice President-Products
Vice President-Products
Democratic Party
Democratic Party
$8,400Democratic Party
Andrew PflaumResearch And Development Technician
Andrew Pflaum
Research And Development Technician
Research And Development Technician
Democratic Party
Democratic Party
$6,500Democratic Party
Anne TothCompliance Vice President
Anne Toth
Compliance Vice President
Compliance Vice President
Democratic Party
Democratic Party
$6,400Democratic Party
Nini SpaldingDirector Of Enterprise Sales
Nini Spalding
Director Of Enterprise Sales
Director Of Enterprise Sales
Democratic Party
Democratic Party
$5,600Democratic Party
Eric CostelloEngineer
Eric Costello
Democratic Party
Democratic Party
$5,400Democratic Party
Peter SlackPresident
Peter Slack
Democratic Party
Democratic Party
$5,000Democratic Party
Mark McBrideSoftware Engineer
Mark McBride
Software Engineer
Software Engineer
Democratic Party
Democratic Party
$5,000Democratic Party
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Slack Employment Videos

Slack Financial Performance

Performance Score
We calculated the performance score of companies by measuring multiple factors, including revenue, longevity, and stock market performance.


$100M - $1B

Founded in


Organization type


How Would You Rate The Company Culture Of Slack?

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Slack Competitors

Based on our research, similar companies to Slack are Pluralsight, Spotzer, and The Rocket Science Group. The average salaries at Pluralsight rank the highest, with their employees earning an average salary of $88,324 per year. The salaries at Spotzer average $85,332 per year, and the salaries at The Rocket Science Group come in at $84,943 per year.
Average Salary
Salary Range65k - 119k$88k$88,324


Salary Range65k - 111k$85k$85,332
The Rocket Science Group
Salary Range61k - 116k$85k$84,943
Mind Over Machines
Salary Range62k - 111k$84k$83,877


Salary Range62k - 111k$83k$83,489


Salary Range62k - 110k$83k$82,927
Mass Media
Salary Range61k - 110k$83k$82,824

The Cimarron Group

Salary Range61k - 110k$83k$82,628


Salary Range61k - 110k$82k$82,467

Blue Fever

Salary Range60k - 109k$82k$81,547

Frequently Asked Questions about Slack

When was Slack founded?

Slack was founded in 2009.

How many Employees does Slack have?

Slack has 1,502 employees.

How much money does Slack make?

Slack generates $401.0M in revenue.

What industry is Slack in?

Slack is in the software industry.

What is Slack's mission?

Slack's mission statement is "The mission is to make people's working lives simpler, more pleasant, more productive."

What type of company is Slack?

Slack is a public company.

Who are Slack's competitors?

Slack competitors include BNP Media, Mass Media, LRP Publications, DIGITAL ART ZONE, Interweave, PR Newswire, Blue Fever, Group C Media, BurrellesLuce, Northstar Travel Group, Pluralsight, Courier Publications, Spotzer, The Cimarron Group, Idealist, The Rocket Science Group, Mind Over Machines, India West Publications, Times News, NASCAR.

Where is Slack's headquarters?

Slack's headquarters is in San Francisco, CA.

Are You An Executive, HR Leader, Or Brand Manager At Slack?

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Updated December 31, 2020

Zippia gives an in-depth look into the details of Slack, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Slack. The employee data is based on information from people who have self-reported their past or current employments at Slack. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions, or for the results obtained from the use of this information. The data presented on this page does not represent the view of Slack and its employees or that of Zippia.

Slack may also be known as or be related to SLACK TECH INC, Slack, Slack Technologies Inc and Slack Technologies, Inc.