Connect with 312,876 organisations using Slack — the digital headquarters platform transforming how teams communicate, collaborate, and get work done. Now part of Salesforce, Slack integrates with CRM, service, and automation workflows to create a connected work environment where every conversation is linked to customer data and business processes. Our verified contact list gives you access to IT Directors, Chief People Officers, Workplace Technology Managers, and collaboration platform decision-makers across every industry globally.
Slack is the leading business communication and collaboration platform that has fundamentally changed how modern organisations work. Founded in 2013 by Stewart Butterfield as a spin-off of a failed gaming company, Slack grew to become one of the fastest-growing enterprise software companies in history — reaching $1 billion in annual recurring revenue in record time and redefining how teams communicate across functions, geographies, and organisations. Acquired by Salesforce in 2021 for $27.7 billion — the largest acquisition in Salesforce history — Slack now serves as the conversational layer of the Salesforce Customer 360 platform, with 312,876 organisations running it as their digital headquarters.
Slack's core product is a channel-based messaging platform that organises conversations by topic, team, project, and customer — replacing disorganised email chains and disconnected group chats with a searchable, integrated workspace. Channels can be public (visible to everyone in the organisation), private (invitation-only), or shared with external organisations and customers through Slack Connect. This external channel capability — connecting teams at different companies within a secure, persistent shared workspace — has made Slack the default collaboration environment for vendor partnerships, customer success relationships, and cross-company project teams.
Slack's integration platform is one of its most powerful differentiators — with over 2,600 apps available in the Slack App Directory, it connects with virtually every enterprise software system including Salesforce CRM, Google Workspace, Microsoft 365, Jira, GitHub, Zoom, Workday, and ServiceNow. Slack Workflow Builder enables non-technical users to automate multi-step processes directly within Slack — from automated standup reports to onboarding workflows to approval routing — without writing code. The platform's API ecosystem and Bolt SDKs enable developers to build custom Slack apps, bots, and automated integrations that deeply embed business logic into the Slack experience.
With the Salesforce integration, Slack has evolved from a standalone messaging tool into a CRM-connected digital workspace where sales reps can view Salesforce account data in Slack channels, receive deal alert notifications, update opportunities without leaving Slack, and collaborate with customer success teams on account health — all within the conversational interface where work already happens. This Salesforce-Slack integration is a significant competitive differentiator that drives adoption among Salesforce customers and creates strong retention for both products.
The collaboration capabilities connecting 312,876 digital-first organisations
Slack's channel architecture organises all workplace communication into topic-specific, searchable channels that give every team member full context on any conversation, project, or customer relationship. Unlike email, where knowledge is siloed in individual inboxes, Slack channels create a transparent, shared record of every decision, document, and discussion accessible to all authorised team members. Channels persist indefinitely, creating an institutional knowledge base that new employees can search to understand project history, decisions, and context without requiring knowledge transfer from departing team members.
Slack Connect enables organisations to collaborate with external partners, customers, vendors, and agencies within secure, shared Slack channels — replacing email for external communications with the same persistent, searchable, integrated experience used internally. Over 100,000 organisations use Slack Connect for external collaboration, with customers reporting dramatically faster response times and higher partner satisfaction compared to email-based external workflows. Slack Connect channels can integrate with CRM systems to automatically surface customer context, making customer success and account management teams significantly more responsive and informed.
Slack Workflow Builder is a no-code automation tool that allows teams to create multi-step automated workflows triggered by Slack events — new messages, emoji reactions, form submissions, scheduled times, or external triggers via webhook. Common workflows include automated daily standup collection, PTO request approval routing, incident response playbooks, onboarding checklists, and customer escalation alerts. Each workflow runs entirely within Slack, enabling business process automation without requiring separate workflow tools or development resources for straightforward automation use cases.
The native Salesforce-Slack integration enables sales and customer success teams to surface Salesforce account, contact, and opportunity data directly in Slack channels and DMs. Deal Rooms in Slack bring together everyone working on a key account — AEs, SEs, management, legal — in a shared channel automatically populated with relevant Salesforce data and updates. Sales reps can update Salesforce records, log activities, and view pipeline summaries from within Slack without switching applications. Alerts for deal stage changes, competitor flags, and case escalations are automatically posted to the relevant Slack channel.
Slack AI, launched in 2024, brings generative AI capabilities natively into the Slack workspace — enabling users to summarise long channel conversations in seconds, search across all Slack content using natural language, and receive daily digest summaries of important channels. Einstein Copilot integration extends this to CRM-connected AI recommendations within Slack, surfacing next best actions, deal insights, and customer health signals directly in the messaging interface where teams are already making decisions, eliminating the context switching between communication and CRM tools that previously fragmented the sales workflow.
Slack Enterprise Grid is the administration tier designed for large, multi-workspace organisations that need centralised user management, security controls, and compliance capabilities across multiple Slack workspaces. Enterprise Grid supports SAML SSO, SCIM provisioning, data loss prevention (DLP) integration, eDiscovery and legal hold, audit logging, and workspace management at scale. Enterprise Mobility Management (EMM) integration and managed devices policies ensure secure access from employee and BYOD devices. Enterprise Grid is used by the largest Slack deployments — global organisations with 10,000+ users across multiple business units and geographic regions.
B2B organisations that find this list most valuable for outreach
Software vendors with Slack app directory listings use this list to directly promote their Slack integration to IT Directors and workplace technology managers at Slack organisations. Getting discovered through the Slack App Directory is competitive — direct outreach to Slack admins and team leads at target companies is often more effective for driving initial adoption and enterprise deals. The list is particularly valuable for productivity apps, project management tools, and HR platforms seeking Slack integration adoption.
Video meeting platforms, virtual whiteboard tools, document collaboration software, and project management applications use the Slack list to reach VP of Operations and IT Directors at Slack organisations. These buyers already understand the value of modern workplace technology and are actively assembling the full digital workplace stack. Vendors of tools that complement Slack's messaging-first experience — for structured work, visual collaboration, or asynchronous video — find Slack users to be highly receptive early adopters.
HR technology vendors — including employee engagement platforms, recognition tools, pulse survey tools, and onboarding automation software — use the Slack list to target Chief People Officers and HR Directors at Slack organisations. Slack is frequently the distribution channel for these HR tools (delivered as Slack bots or apps), making Slack accounts the natural target market for employee experience products that can be deployed and adopted within the Slack environment where employees already spend most of their working day.
Data loss prevention vendors, DLP platforms, and eDiscovery tools use the Slack Enterprise Grid list to reach CISOs and IT compliance managers at large Slack deployments. Enterprise Slack accounts have significant data governance obligations around message retention, DLP enforcement, and legal hold capabilities that require third-party security tooling. Vendors who provide DLP integration, compliance archiving, and insider threat monitoring for Slack environments find well-qualified, urgent buyers among the enterprise segment of this list.
Management consulting firms and digital workplace specialists use the Slack list to reach CIO and CHRO leaders at organisations undergoing digital transformation. Slack deployments are often associated with broader workplace modernisation programmes — moving from legacy email and intranet to integrated digital workspaces. Consultancies who specialise in digital workplace strategy, change management, and Slack adoption programmes target this list to position their expertise in maximising the ROI of the Slack investment through governance, training, and integration design.
Slack adoption training providers, digital workplace change management firms, and employee communication specialists use this list to reach HR and L&D leaders responsible for driving Slack adoption beyond initial deployment. Many Slack implementations stall at basic messaging use cases without realising the platform's full potential for workflow automation, knowledge management, and cross-functional collaboration. Training vendors who can demonstrate a measurable improvement in Slack adoption metrics and collaboration ROI find receptive buyers among this audience of HR and operations leaders.
Sector distribution across 312,876 Slack companies
38%
Software companies, startups, and digital-native businesses that adopted Slack as their primary communication layer
16%
Banks, fintech, and investment firms using Slack for trading floor, deal team, and cross-department collaboration
12%
Media companies, agencies, and content businesses using Slack for production coordination and editorial workflows
10%
Health systems and pharma companies using Slack for care coordination, research, and clinical operations
8%
Retailers and DTC brands using Slack for merchandising, operations, and cross-functional product launches
7%
Consulting, legal, and accounting firms using Slack for client collaboration and project management
5%
Universities and edtech companies using Slack for faculty communication, student support, and research teams
4%
Manufacturing, government, non-profit, and other sectors using Slack for digital workplace modernisation
Distribution across 312,876 verified Slack companies worldwide.
| Region / Country | Companies | Contacts | Share |
|---|---|---|---|
| 🇺🇸 United States | 118,892+ | 832,250+ | 38% |
| 🇬🇧 United Kingdom | 37,544+ | 262,816+ | 12% |
| 🇩🇪 Germany | 25,030+ | 175,210+ | 8% |
| 🇨🇦 Canada | 18,772+ | 131,408+ | 6% |
| 🇦🇺 Australia | 15,644+ | 109,506+ | 5% |
| 🇫🇷 France | 15,644+ | 109,506+ | 5% |
| 🇮🇳 India | 21,902+ | 153,310+ | 7% |
| 🌍 Rest of World | 59,448+ | 416,126+ | 19% |
Digital-First Organisations with Full Tech Stacks: Slack adoption is strongly correlated with digital-first organisational cultures that invest heavily in technology across all business functions. Organisations running Slack are very likely to also be running Salesforce, Google Workspace or Microsoft 365, Zoom, and a modern cloud HR platform — making them ideal targets for any enterprise software vendor looking for organisations with high technology adoption rates and mature IT procurement processes.
Salesforce Integration Creates Cross-Sell Value: With Salesforce's acquisition of Slack, the two platforms are deeply integrated and co-sold. Organisations running Slack are increasingly being converted to Salesforce customers, and existing Salesforce customers are being upgraded to include Slack. This creates bidirectional commercial value — Slack vendors can use this list to cross-sell Salesforce products, and Salesforce vendors can use Slack adoption as a qualifying signal for their CRM and platform expansion conversations.
Large User Bases Create Per-Seat Revenue: Slack's per-user monthly pricing model means that large Slack deployments represent significant annual spend — enterprise organisations with 1,000+ Slack users are spending $150,000+ annually on licences alone. This level of per-platform spend signals organisations with mature technology budgets and a history of approving large software investments across their entire technology portfolio.
High App Integration Activity: Slack users are prolific technology integrators — the average enterprise Slack workspace has 10-20 integrated third-party apps. This high integration activity makes Slack accounts natural buyers for the 2,600+ applications available in the Slack App Directory, creating ongoing demand that app vendors can capture through direct outreach campaigns to Slack administrators and IT leaders at target organisations.
| Name | Title | Company | Industry | Location | |
|---|---|---|---|---|---|
| Chris M. | IT Director | StackWave Inc. | Technology | San Francisco, CA | c***@stackwave.com |
| Lauren B. | Chief People Officer | Meridian Capital | Financial Services | New York, NY | l***@meridiancap.com |
| Tom H. | Workplace Technology Mgr | BrightMedia Group | Media | London, UK | t***@brightmedia.co.uk |
| Mei L. | Head of IT Operations | NovaTech Asia | Technology | Singapore, SG | m***@novatech.sg |
| Natasha R. | VP of Engineering | HealthTech Solutions | Healthcare | Toronto, CA | n***@healthtechsol.ca |
IT Director
219,014+
Chief People Officer
175,210+
Workplace Technology Mgr
131,408+
VP of Engineering
109,506+
CIO
87,604+
Head of IT Operations
109,506+
HR Director
65,702+
VP of Operations
87,604+
The ELP Data Slack Users List identifies organisations with active Slack deployments through website technology detection (Slack workspace domain signals, job posting analysis for Slack-specific roles), professional profile data for Slack administrators and workspace owners, and direct verification processes. The methodology focuses on paid Slack accounts — Pro, Business+, and Enterprise Grid plans — rather than free tier workspaces, ensuring the list represents organisations with committed Slack investments.
Contact records focus on IT, Operations, and People leadership titles that control workplace technology decisions: IT Director, CIO, Chief People Officer, VP of Operations, Workplace Technology Manager, and Head of IT. Engineering and Product leadership titles (VP of Engineering, Head of Product) are heavily represented given technology companies' dominance of the Slack installed base.
Filtering options include Slack tier (Business+ vs Enterprise Grid), company size, industry, geography, and revenue band. Slack Connect-heavy users — identified through job postings emphasising external collaboration and customer-facing Slack channels — can be targeted separately for vendors specifically selling Slack Connect use cases or customer success tools that leverage the Slack Connect infrastructure.
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Verified reviews from companies who purchased this list from ELP Data.
"We build a Slack-native project management app sold to IT Directors and Ops teams at Slack Business+ accounts. ELP Data's Slack users list was perfect — we filtered for technology companies with 200-2000 employees running Slack and reached IT Directors and VP of Operations with a cold email sequence. We booked 21 demos in 5 weeks and closed 4 deals. Best list purchase we have made in 3 years."
Ben H.
Co-Founder & CEO
Slack App Developer
"Our enterprise eDiscovery platform covers Slack message retention and compliance. We targeted Slack Enterprise Grid accounts in Financial Services and Legal using ELP Data's list — reaching CIOs and Compliance Directors at the exact organisations that need our product. We generated 6 qualified enterprise leads from a single outbound campaign, with an estimated pipeline value of over $1.2 million."
Sandra M.
VP of Enterprise Sales
eDiscovery & Compliance Platform
"We sell a Slack-to-Salesforce integration tool that bridges CRM data into Slack channels. ELP Data's Slack list let us reach Workplace Technology Managers and VP of Operations contacts at Slack accounts that also showed Salesforce usage signals. The combined Salesforce-Slack segment was exactly our ideal customer. We booked 17 demos and reduced our sales cycle significantly due to the qualification precision."
Chloe W.
Head of Sales
Salesforce-Slack Integration Vendor
The ELP Data Slack users list contains 312,876 verified companies and 2,190,132 individual contacts. This covers paid Slack deployments across Pro, Business+, and Enterprise Grid tiers globally. The list is among ELP Data's largest Salesforce application lists, reflecting Slack's massive enterprise penetration across nearly every industry and geography.
Yes. ELP Data can segment the Slack list to focus on Enterprise Grid deployments — large organisations running multi-workspace Slack environments with centralised IT governance, compliance requirements, and SAML SSO. Enterprise Grid accounts represent the highest-value Slack users in terms of licence spend, security requirements, and IT complexity — making this segment particularly valuable for enterprise security vendors, eDiscovery providers, and DLP platform companies.
Technology companies are the dominant segment at 38% of Slack accounts, but significant representation exists across Financial Services (16%), Media (12%), Healthcare (10%), and Retail (8%). Slack's penetration across non-tech industries has grown substantially since the COVID-19 pandemic accelerated digital workplace adoption. The list includes a diverse industry cross-section, making it valuable for any B2B vendor targeting digitally advanced organisations across sectors.
The Slack users list includes organisations of all sizes — from fast-growing startups with 50 employees to Fortune 500 enterprises with 100,000+ workers. Unlike some enterprise software platforms where the smallest meaningful deployment is 500+ employees, Slack is widely used by companies with as few as 10 employees. ELP Data recommends filtering by employee count if your ideal customer profile has specific company size requirements for accurate budget and deal size matching.
Salesforce's acquisition of Slack in 2021 has increased the strategic overlap between Salesforce CRM users and Slack users. Approximately 45% of Slack accounts in this list also show Salesforce CRM usage signals — making the combined Salesforce-Slack audience particularly valuable for vendors of products that bridge CRM and collaboration workflows. The Salesforce integration story significantly increases the relevance of the Slack list for Salesforce ecosystem vendors.
Each contact record includes full name, verified direct email address, phone number, LinkedIn profile URL, job title, seniority level, department, company name, company website, employee count range, revenue estimate, industry classification, and full location data (city, state/province, country, postal code). All records carry ELP Data's standard 97% email deliverability guarantee and are updated quarterly to maintain data currency and accuracy.
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