The AI Index
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Cornerstone

HQ Santa Monica, USFounded 1999private otherWebsite @CornerstoneInc
Composite score
68.7
rank #6 · cuts
Headcount
3.1k
0.0%
90d change
-1.8%
Launches (30d)
0
Layoff events (90d)
1
AI-attributed present

Signals

source: PDL v25
Inferred revenue
$1B-$10B
PDL estimate
Revenue / employee
$1.8M
midpoint ÷ headcount
12-month turnover
14.6%
within typical band
Average tenure
3.9 yrs
long — sticky culture
Time since last raise
8y 5mo
runway question
LinkedIn followers
182.6k
brand reach

Hiring flow · Cornerstone

source: PDL v25
+441 hires835 exits-394 net · last 18 months

Headcount by role

12-month growth · PDL v25
Engineering
1,257
-6%
Support
459
-5%
Operations
167
-6%
Analyst
159
-8%
Sales
158
-8%
Sales Engineering
134
-3%
Product
128
-20%
Marketing
116
-13%
Other
366

Headcount · Cornerstone

158 weeks · source: mock_v1
The AI Index

Events

Layoff · 14.82% (435 roles)
AI-driven productivity gains reduced staffing needs in support and sales operations.AI-attributed
layoffs.fyi
2mo ago
Funding · post_ipo_equity · 300.0M from null
Crunchbase
8y ago
Funding · series_e · 12.7M from null
Crunchbase
17y ago
Funding · series_d · 32.0M from null
Crunchbase
19y ago

Score history

2026-04-20
68.7
rank #6
2026-03-30
76.5
rank #4
2026-03-23
73.2
rank #5
2026-03-16
74.6
rank #4
2026-03-09
78.1
rank #4
2026-03-02
84.2
rank #3
2026-02-23
87.3
rank #2
2026-02-16
44.6
rank #10
2026-02-09
44.6
rank #7
2026-02-02
41.2
rank #6
2026-01-26
74.3
rank #3
2026-01-19
70.3
rank #4