Who Owns Slack?

Slack operates under Salesforce's corporate sustainability framework. As a digital service, Slack's environmental footprint is primarily related to cloud infrastructure.

Carbon Emissions: Salesforce has committed to achieving net zero greenhouse gas emissions across its full value chain by 2040. The company has achieved carbon neutrality for its direct operations since 2021. Slack's cloud infrastructure operates on AWS, which has committed to powering its operations with 100% renewable energy. Salesforce purchases renewable energy credits and carbon offsets to cover its cloud infrastructure emissions.

Remote Work Impact: Slack's platform enables remote and hybrid work, which can reduce the environmental impact of commuting and office space. Salesforce has reported that its remote work policies have reduced the company's carbon footprint from employee commuting. However, the net environmental impact of remote work is complex, as it may increase residential energy consumption.

Data Privacy: Slack operates under Salesforce's privacy framework, which includes GDPR compliance, data encryption, and user privacy controls. Slack offers enterprise-grade security features including enterprise key management, data loss prevention, and compliance exports. These features are designed for organizations in regulated industries such as financial services and healthcare.

Accessibility: Slack supports accessibility features including screen reader compatibility, keyboard navigation, and color contrast settings. The platform complies with WCAG 2.1 accessibility standards. Slack's accessibility documentation is publicly available on its website.

B Corp Status: Slack is not a certified B Corporation. Salesforce became a certified B Corporation in 2021, making it one of the largest B Corp-certified companies. However, the B Corp certification applies to Salesforce's overall corporate practices rather than individual product brands.

AI Ethics: Salesforce has published AI ethics principles that apply to Slack's AI features. These principles include transparency, accountability, and human oversight of AI systems. Slack AI features, including channel summaries and search, are designed to respect user privacy and data security.

Slack's sustainability profile is integrated into Salesforce's corporate-level initiatives. The brand does not carry independent sustainability certifications separate from Salesforce's corporate certifications.

Slack has received recognition from technology publications and industry organizations for its workplace collaboration platform.

Webby Awards: Slack has received multiple Webby Awards for its online communication and productivity platform. The Webby Awards are independently judged by the International Academy of Digital Arts and Sciences. Slack has won in categories including Productivity and Communication.

Fast Company Most Innovative Companies: Slack has been named to Fast Company's Most Innovative Companies list, recognizing its impact on workplace communication. Fast Company is a business media publication that independently curates this list.

PC Magazine Editors' Choice: Slack has received PC Magazine's Editors' Choice award for team collaboration software. PC Magazine is an established technology publication that independently evaluates software products through hands-on testing.

Apple Design Award: Slack's iOS application received an Apple Design Award, recognizing its user interface and user experience design. Apple's design awards are independently judged by Apple's design team.

G2 Crowd Awards: Slack has received recognition on G2 Crowd (now G2), a software review platform where users rate business software products. Slack has consistently ranked highly in user satisfaction scores for team collaboration software. G2's ratings are based on verified user reviews.

Slack's awards are primarily from technology publications and user review platforms rather than independent testing organizations. The brand's recognition reflects its user experience design and impact on workplace communication patterns.

Slack has faced several controversies and challenges during its history, primarily related to security, competition, and the Salesforce acquisition.

2021 Security Incident: In December 2020, Slack disclosed a security incident in which unauthorized access was gained to the company's GitHub repository. The incident exposed Slack's internal source code but did not compromise user data. Slack investigated the incident and determined that a limited number of employee tokens were used to access the repository. The company rotated affected credentials and enhanced its security monitoring. No user data was exposed in the incident.

Microsoft Teams Competition Complaint (2020): In July 2020, Slack filed a complaint with the European Commission alleging that Microsoft's bundling of Teams with Microsoft 365 was anti-competitive. Slack argued that Microsoft forced customers to use Teams by including it in Microsoft 365 subscriptions, making it difficult for customers to choose alternative collaboration tools. The European Commission opened an investigation into Microsoft's bundling practices in 2023. The investigation is ongoing as of 2026. Microsoft has since offered to unbundle Teams from Microsoft 365 in some markets, though the European Commission has indicated this may not be sufficient to resolve the competition concerns.

Service Outages: Slack has experienced occasional service outages that disrupted workplace communication for users. In 2021, Slack experienced a significant outage during the first week of January, affecting users returning from holiday breaks. The outage lasted several hours and highlighted the dependency of businesses on collaboration platforms. Slack has invested in infrastructure improvements to reduce outage frequency, but occasional disruptions continue to occur.

Data Retention and Privacy Concerns: Slack has faced scrutiny regarding data retention practices. The platform stores all messages, files, and shared content by default, which can create privacy concerns for users who expect their communications to be private. Enterprise customers can configure data retention policies, but free and Pro tier users have limited control over data retention. Privacy advocates have raised concerns about the volume of workplace communication data stored by Slack and its potential use for surveillance or monitoring.

Salesforce Integration Challenges: Following the Salesforce acquisition, some Slack users expressed concerns about the integration of Slack with Salesforce's CRM platform. Some users worried that Salesforce would prioritize enterprise features over the user experience that made Slack popular. Slack has maintained its user interface and product direction, but the integration with Salesforce products has introduced complexity for some users.

Stewart Butterfield Departure (2023): Slack co-founder and CEO Stewart Butterfield departed Salesforce in January 2023, approximately 18 months after the acquisition. His departure raised questions about Slack's future direction within Salesforce. Butterfield was succeeded by Lidiane Jones, who also departed later in 2023. The leadership turnover at Slack has led to concerns about the brand's autonomy within Salesforce's larger corporate structure.

Current Status: Slack continues to operate as a leading collaboration platform within Salesforce's portfolio. The brand has not experienced major security breaches or product safety issues. The ongoing competition with Microsoft Teams remains the primary challenge. The European Commission's investigation into Microsoft's Teams bundling could potentially benefit Slack if regulatory remedies are imposed.