Every week, ARR Club's analytics engine processes new revenue milestones to find the fastest-growing SaaS and AI companies in our database. Here is this week's Growth Velocity Leaderboard based on verified ARR milestones published over the past 7 days:
| Rank | Company | Growth Rate (CAGR) | ARR Trajectory |
|---|---|---|---|
| #1 | KachingAppz |
+12x
annualized over 2.4 months
|
$12M → $20M |
| #2 | ElevenLabs |
+178%
annualized over 2.1 months
|
$500M → $600M |
| #3 | Kalshi |
+167%
annualized over 3.5 months
|
$1.5B → $2B |
| #4 | Judge |
+48%
annualized over 1.9 months
|
$16M → $17M |
Note: CAGR (Compound Annual Growth Rate) is computed based on the linear time elapsed between the two most recent revenue milestones. Only companies with verified ARR updates in the past 7 days are considered for this recap.
KachingAppz Historical Milestones
Jul 12, 2026
The 5 Fastest-Growing Companies of the Week (July 12, 2026)$20M
π 12X Growth
Jul 6, 2026
KachingAppz ARR hit $20M+ with $2M MRR target in the end of 2026$20M
β‘ Grew from $12M to $20M ARR in just 2.4 months (beating 74% of SaaS peers)
Apr 24, 2026
KachingAppz ARR hit $12M ($1M MRR) in 3.5 Years, Fully Bootstrapped$12M
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