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Slack

HQ San Francisco, USFounded 2009private otherWebsite @SlackHQ
Composite score
12.1
rank #31 · cuts

#31 Cut. 2.3k employees.

Headcount
2.3k
0.0%
90d change
-0.5%
Funding events (90d)
0
Layoff events (90d)
0

Signals

source: PDL v25
Inferred revenue
$1B-$10B
PDL estimate
Revenue / employee
$2.3M
midpoint ÷ headcount
12-month turnover
16.4%
within typical band
Average tenure
3.3 yrs
long — sticky culture
Time since last raise
no rounds on record

Hiring flow · Slack

source: PDL v25

Headcount by role

12-month growth · PDL v25
Engineering
1,131
+0%
Sales
205
-14%
Operations
152
-15%
Product
136
-4%
Marketing
106
-18%
Support
93
-27%
Fulfillment
58
-21%
Analyst
47
-13%
Other
195

In the news

relevance ≥ 6 · last 180 days
  1. OpenAI28d ago
    How sales teams use Codex

    Slack is listed as a suggested plugin for Codex to access account discussions and send recaps.

Events

Layoff · 2.43% (79 roles)
Departures in 2023-04: 130 vs 6-mo baseline of 51 (2.55× spike). Derived from PDL.
3y ago
Layoff · 3.03% (103 roles)
Departures in 2023-03: 154 vs 6-mo baseline of 51 (3.02× spike). Derived from PDL.
3y ago

Score history

2026-06-08
12.1
rank #31
2026-06-01
12.1
rank #31
2026-05-25
28.6
rank #30
2026-05-18
26.1
rank #28
2026-05-11
26.1
rank #28
2026-05-04
26.1
rank #28
2026-04-27
30.8
rank #21
2026-04-20
29.5
rank #23
2026-04-13
29.5
rank #23
2026-04-06
29.5
rank #23
2026-03-30
18.3
rank #34
2026-03-23
32.5
rank #22