Slack users list

Email list of companies using Slack

Q: How many companies use Slack?

Data InfoMetrix tracks 389,175 companies using Slack, with 2,668,000 verified contacts at those accounts as of October 2026. The largest groups are Technology & SaaS, Media and Financial Services. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.

Q: Who buys and manages Slack inside a company?

Slack is usually owned by Workplace Messaging & Collaboration. Decision-makers include CIO, Head of IT and COO; Slack Admin and IT Manager shape the choice, and Employees and Engineers use it day to day. Our Slack list can include any of these roles.

Q: Which Slack products or editions can I target?

You can target accounts by the Slack products they run, including Slack Pro, Slack Business+, Slack Enterprise Grid, Slack AI and Agentforce in Slack. Tell us which edition or module matters and we filter the list to those accounts.

Q: What other software do Slack customers use?

Slack customers commonly also run Google Workspace, Salesforce, Jira, Zoom and Okta. We can filter any list by this kind of stack overlap.

Q: What are the main alternatives to Slack?

The main alternatives to Slack are Microsoft Teams, Google Chat and Zoom Workplace. We also keep verified user lists for Microsoft Teams, which is useful for competitive displacement campaigns.

Q: When are Slack customers most likely to buy?

Buying triggers we track for Slack accounts include Enterprise Grid upgrade, Microsoft 365 consolidation review, AI pilot and compliance audit. A common pain point is licence costs and consolidation: microsoft bundles push reviews.

Q: Can Data InfoMetrix deliver a free sample Slack contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Slack criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

Q: How does Data InfoMetrix guarantee email deliverability for Slack contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all Slack datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Reach IT, operations and collaboration leaders at companies running Slack for messaging, huddles, workflows and AI.

389,175+Companies

2,668,000+Contacts

Updated Oct 7, 2026GDPR · CCPA99% accuracy

See sample data

Free Slack count + 10 sample records

389,175+ companies · 2,668,000+ contacts available

✓Exact count for your titles, regions and company size
✓10 verified sample records to check quality
✓Price quote within 1 business day

Trusted by B2B and enterprise revenue teams

How many companies use Slack?

Data InfoMetrix tracks 389,175+ companies running Slack as of October 2026, with 2,668,000+ verified contacts at those accounts. The largest groups are Technology & SaaS, Media and Financial Services. Buying decisions usually sit with the CIO, Head of IT and COO. Counts are estimates built from technology footprint scans, job-post signals and partner directories, checked by our research team. How we count

Tracked accounts389,175+

Organizations detected running Slack.

Verified contacts2,668,000+

Direct emails and phone dials for decision-makers.

Primary personasCIO, Head of IT, Director of Collaboration

Full buying committee mapped.

Deliverability SLA99%

SMTP-verified, with 1:1 replacement of any email that hard bounces within 30 days.

Data specification · Updated Q4 2026

Technology category	Productivity & Collaboration
Tracked organizations	389,175+ verified accounts worldwide
Decision-maker contacts	2,668,000+ records with emails, mobile and direct dials
Key roles	CIO, Head of IT, Director of Collaboration, platform administrators, IT directors, procurement
Geography	180+ countries · country-by-country counts on request
Verification	DNS and script telemetry, 5-stage SMTP handshake, manual research
Refresh cadence	Continuous, 30–45 day maximum record age at delivery
Compliance	GDPR, CAN-SPAM, CCPA and CASL
Delivery	24–48 hours as CSV, XLSX or CRM API

Editorial & verification

Researched by the Data InfoMetrix research team. Counts updated October 2026.

How we count and verify data

Market guide

Selling to Slack customers

Slack is the messaging hub for many technology and knowledge-work companies, and it is owned by Salesforce. Its customers connect hundreds of apps to it and expect tools to work inside Slack.

Written by the Data InfoMetrix research team · Updated October 2026

Who runs Slack

Slack is used by software companies, media and creative businesses, financial services and enterprises with many distributed teams. Plans include Pro, Business+ and Enterprise Grid, with Slack AI and workflow automation as add-ons.

Who to contact

IT leaders and the CIO own Slack at enterprise level; workplace or collaboration leads and Slack admins manage apps and governance. Department leaders adopt apps for their own teams, so bottom-up adoption is common.

When Slack accounts are ready to buy

Renewals and price changes, a comparison with Microsoft Teams, compliance and retention requirements, adopting Slack AI and consolidating workspaces after mergers are the main triggers.

How to segment and approach

Segment by plan, company size and the rest of the stack: Google Workspace or Microsoft 365, Salesforce, Jira and Zoom. Enterprise Grid accounts have strict security reviews.

Show the work happening in Slack itself, with a Slack Marketplace app, and keep onboarding light so teams can try it quickly.

Size your Slack audience

Pick a region, company size and buying role to estimate how many accounts and contacts you can reach.

Region

Company size

Buying role

Estimated segment✓ 99% SLA

389,175+Target accounts

2,668,000+Direct contacts

Decision-makers35%

Influencers45%

End users20%

Estimates from our current Slack dataset. Exact counts come with your quote.

Reach the whole buying committee

A Slack account is not one contact. We map the people who evaluate, buy, run and use it across Workplace Messaging & Collaboration.

Decision-makersC-suite & sponsors

CIOHead of ITCOOCTO

Influencers & adminsEvaluate & configure

Slack AdminIT ManagerSecurity ManagerWorkflow Builder Lead

End usersRun it every day

EmployeesEngineersSales TeamsSupport Teams

These are examples. We build records for any department, seniority or custom title.

See exactly what you get

Every record carries 60+ fields, from verified email, direct dial and LinkedIn to full postal address, Slack edition, coexisting stack and intent.

Contact	Buying role	Work email	Direct dial	Company phone	Fax	LinkedIn profile	Company	LinkedIn company page	Industry	Address 1	Address 2	City	State	ZIP code	Country	Slack footprint	Intent	Status
SHSpencer HollowayVP of Product Design & User Experience (UX)	Decision Maker	s.hol**@apexcreati*******.com	+1 (415) 55*-**	+1 (415) 55*-**	+1 (415) 55*-**	linkedin.com/in/s*cer-ho*******	Apex Creative Product Studios Inc.	linkedin.com/company/apex-creative-studios	Digital Product Design & Mobile App Development	500 3rd St	Ste 400	San Francisco	CA	94107	United States	Slack Enterprise Scaled Organization Workspace	High	✓ Verified 2026
CSChloe SutherlandHead of Business Operations (BizOps) & Chief of Staff	Decision Maker	c.sut**@fins**.io	+1 (212) 55*-**	+1 (212) 55*-**	+1 (212) 55*-**	linkedin.com/in/c*oe-su*******	FinScale High-Growth Technologies Inc.	linkedin.com/company/finscale-technologies	Financial Technology & Digital Banking	1 World Trade Center 48th	Fl	New York	NY	10007	United States	Slack Centralized Enterprise Knowledge Wiki & Databases	High	✓ Verified 2026
GVGareth VanceVP of Agile Program Management (PMO)	Decision Maker	g.va**@summitc*****.uk	+44 (20) 79*-**	+44 (20) 79*-**	+44 (20) 79*-**	linkedin.com/in/g*eth-v*******	Summit Cloud Platforms Global Ltd	linkedin.com/company/summit-cloud-global	Enterprise Software & Cloud Platforms	200 Aldersgate St	—	London	Greater London	EC1A 4HD	United Kingdom	Slack Agile Program Portfolio Management & Capacity Planning	High	✓ Verified 2026
ESDr. Evelyn SterlingLead Design Systems Architect	Influencer	e.ste**@novam**.se	+46 (8) 55*-**	+46 (8) 55*-**	+46 (8) 55*-**	linkedin.com/in/e*yn-st*******	Nova Digital Media Streaming AB	linkedin.com/company/nova-digital-media	Digital Entertainment & Media Streaming	Mäster Samuelsgatan 42	—	Stockholm	Stockholm County	111 57	Sweden	Slack Collaborative Design Systems & Dev Mode Handoff	Medium	✓ Verified 2026
NCNigel CampbellDirector of Workplace Technology & Corporate IT	Influencer	n.cam**@kensingt******.com	+1 (312) 55*-**	+1 (312) 55*-**	+1 (312) 55*-**	linkedin.com/in/n*el-ca*******	Kensington Global Investment Advisors LLC	linkedin.com/company/kensington-global-advisors	Investment Advisory & Wealth Management	227 W Monroe St	Ste 3900	Chicago	IL	60606	United States	Slack Single Sign-On (SSO) & SCIM Automated User Provisioning	High	✓ Verified 2026
CLCamille LerouxDirector of Product Operations (ProdOps)	Influencer	c.le**@pariste****.fr	+33 (1) 45*-**	+33 (1) 45*-**	+33 (1) 45*-**	linkedin.com/in/c*lle-l*******	Paris Digital Labs & Product Studios SAS	linkedin.com/company/paris-digital-labs	Enterprise Software & Product Consulting	10 Rue de la Paix	—	Paris	Île-de-France	75002	France	Slack Executive Sprint Tracking & Automated Workflow Triggers	Medium	✓ Verified 2026
DBDeclan BrodyLead Agile Coach & Release Train Engineer	Practitioner	d.br**@beaconf****.ie	+353 (1) 41*-**	+353 (1) 41*-**	+353 (1) 41*-**	linkedin.com/in/d*an-br******	Beacon FinTech Banking Solutions Ltd	linkedin.com/company/beacon-fintech-solutions	Financial Technology & Embedded Banking	10 Earlsfort Terrace	—	Dublin	Leinster	D02 T380	Ireland	Slack Cross-Functional Product Roadmaps & Release Management	High	✓ Verified 2026
KTKenzo TakahashiSenior UI/UX & Design Systems Engineer	Practitioner	k.ta**@tokyosof******.jp	+81 (3) 55*-**	+81 (3) 55*-**	+81 (3) 55*-**	linkedin.com/in/k*zo-ta******	Tokyo Enterprise Software Systems KK	linkedin.com/company/tokyo-enterprise-soft	Enterprise Software & Cloud Platforms	Roppongi Hills Mori Tower	22F	Tokyo	Tokyo	106-6122	Japan	Slack Asynchronous Team Collaboration & Video Messaging	Medium	✓ Verified 2026

Illustrative rows showing 20 of 60+ fields. Full records are unmasked.

We deliver 60+ data fields per record, including intent data. The sample shows a selection only. Tell us which fields you need, including any that aren't listed here, and we'll add them to your list.

Also available:Seniority & departmentJob functionTenure in roleEmployee countAnnual revenueSIC & NAICS codesParent companyWebsite & domainProduct editionContract & renewal timingIntent topics & scoreEmail verification date

How we prove an account runs Slack

No scraped résumés or stale directories. Three layers confirm a live installation before a contact reaches your list. Read our verification protocol

Pillar 1 · Telemetry

Live DNS & script signals

We inspect response headers, DNS MX and CNAME records and live JavaScript bundles to confirm a running Slack instance.

DNS · CNAME · MX recordsHTTP headers · JS bundles✓ Verified against live infrastructure

Pillar 2 · Operational intent

90-day hiring signals

We track job requisitions that ask for Slack skills, which shows ongoing budget and headcount.

Now hiringSlack Administrator

Now hiringSlack Architect

Now hiringSlack Engineer

Pillar 3 · Human & mailbox QA

Pre-delivery SMTP handshake

Each email is tested against the destination mail server, and titles are checked against current company rosters.

SMTP check ✓LinkedIn match ✓Title verified ✓

✓ Deliverable inbox and current role

Deliverability SLA

<3%

Maximum bounce rate, or we replace the contacts. Your sender reputation stays clean.

1:1 hard bounce replacement

Every email that hard-bounces within 30 days of delivery is replaced free, record for record.

24-hour pre-delivery ping

Live SMTP and MX checks right before we send your file.

Instant CRM import

Clean CSV or XLSX, ready for one-click import.

Ready for your outbound stack

Imports straight into the tools you use.

What are you trying to do?

Each campaign needs a different data strategy. Pick your goal to see how we build the audience.

Find companies on rival platforms and reach the people evaluating a move to, or away from, Slack.

Conquesting playbook

Pitch integrations, add-ons and complementary tools to companies already running Slack.

Ecosystem playbook

Build account lists around Slack deployment scale and engage the full committee across departments.

ABM playbook

Conquesting audienceSample

Microsoft Teams

Google Chat

Zoom Workplace

→

Slack

Know the stack around every account

Slack rarely runs alone. Every record is tagged with the tools detected alongside it, so you can segment by complementary stacks.

Google Workspace

Open the coexistence matrix

What Slack customers look like

Anonymised profiles of companies in our Slack dataset of 389,175+ accounts. Named accounts are shared in your free sample, never on a public page.

Slack account profiles · anonymised

Company size	Industry	Country	Employees	Revenue
Enterprise	Retail	United States	5,000+	$1B+
Upper mid-market	Technology & SaaS	Canada	1,000–4,999	$250M–$1B
SMB	Media	Germany	50–199	$10M–$50M
Enterprise	Financial Services	United States	10,000+	$5B+
Mid-market	Retail	Australia	500–999	$100M–$250M
Mid-market	Technology & SaaS	United States	200–999	$50M–$250M
Enterprise	Media	United States	5,000+	$1B+
Upper mid-market	Financial Services	United Kingdom	1,000–4,999	$250M–$1B

Markets we cover

United States

India

United Kingdom

Canada

Germany

Australia

Singapore

France

New Zealand

Netherlands

Plus 170 more countries. Ask for a country-by-country count of Slack accounts and we'll include it with your free sample.

Build the list your way

Every list is assembled from source to your product tier, job function, geography and revenue band. Nothing is a fixed export.

Editions & modules

Filter by what they actually run.

+Slack Pro+Slack Business++Slack Enterprise Grid+Slack AI+Agentforce in Slack

Firmographics

Match revenue, size and industry.

+Industry+$1M–$10B+ revenue+Headcount+Ownership & funding+HQ & branches

Geography

Target any territory.

+US & Canada+US states+UK, DACH, Nordics+APAC & ANZ+Metro clusters

Need multi-attribute segments? Open the Audience Builder

What Slack teams are struggling with

Know the friction before you reach out, and position your product where it matters.

Friction 1

Licence costs and consolidation

ImpactMicrosoft bundles push reviews.

OpportunityOffer collaboration cost reviews.

Friction 2

Data retention and eDiscovery

ImpactCompliance needs message archiving.

OpportunityPitch archiving services.

Friction 3

AI and agents in chat

ImpactTeams pilot agents in Slack.

OpportunityOffer agent integration.

Intent triggers we track

✓Enterprise Grid upgrade

✓Microsoft 365 consolidation review

✓AI pilot

✓Compliance audit

“Data InfoMetrix provided the exact CRM footprint and RevOps contacts we needed. We closed 140+ enterprise accounts in record time.”

VP of Commercial Sales, a CRM software vendorName withheld at the client's request

Read the $1.8M ARR case study

Slack list questions, answered

How many companies use Slack?

Data InfoMetrix tracks 389,175 companies using Slack, with 2,668,000 verified contacts at those accounts as of October 2026. The largest groups are Technology & SaaS, Media and Financial Services. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.

Who buys and manages Slack inside a company?

Slack is usually owned by Workplace Messaging & Collaboration. Decision-makers include CIO, Head of IT and COO; Slack Admin and IT Manager shape the choice, and Employees and Engineers use it day to day. Our Slack list can include any of these roles.

Which Slack products or editions can I target?

You can target accounts by the Slack products they run, including Slack Pro, Slack Business+, Slack Enterprise Grid, Slack AI and Agentforce in Slack. Tell us which edition or module matters and we filter the list to those accounts.

What other software do Slack customers use?

Slack customers commonly also run Google Workspace, Salesforce, Jira, Zoom and Okta. We can filter any list by this kind of stack overlap.

What are the main alternatives to Slack?

The main alternatives to Slack are Microsoft Teams, Google Chat and Zoom Workplace. We also keep verified user lists for Microsoft Teams, which is useful for competitive displacement campaigns.

When are Slack customers most likely to buy?

Buying triggers we track for Slack accounts include Enterprise Grid upgrade, Microsoft 365 consolidation review, AI pilot and compliance audit. A common pain point is licence costs and consolidation: microsoft bundles push reviews.

Can Data InfoMetrix deliver a free sample Slack contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Slack criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

How does Data InfoMetrix guarantee email deliverability for Slack contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all Slack datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Sourcing and compliance. Business contacts come from public company sources, professional directories and opt-in publishing partners, then go through SMTP verification and human review. Lists are for B2B outreach: include an unsubscribe link and honour opt-outs (CAN-SPAM), and have a lawful basis such as legitimate interest when you email people in the EU or UK (GDPR). Read how we source and verify data