ACI WORLDWIDE, INC. vs Vertex, Inc.
Side-by-Side SaaS Metrics & Valuation Comparison
analyticsVertical SaaS
Data as of Q2 2026
Summary Verdict
ACIW: 3—VERX: 2wins
Rule of 40
26.1ACIW
21.2VERX
check_circleACIW leads
Revenue Growth
9.1%ACIW
16.6%VERX
check_circleVERX leads
Gross Margin
46%ACIW
64%VERX
check_circleVERX leads
FCF Margin
17.0%ACIW
4.7%VERX
check_circleACIW leads
Operating Margin
15.2%ACIW
-1.9%VERX
check_circleACIW leads
NRR
—ACIW
—VERX
Metric
Rule of 40Efficiency score
ACIW
26.1check_circle
VERX
21.2
Revenue GrowthYoY
ACIW
9.1%
VERX
16.6%check_circle
Gross Margin% of revenue
ACIW
46%
VERX
64%check_circle
FCF MarginFree cash flow
ACIW
17.0%check_circle
VERX
4.7%
Operating MarginGAAP
ACIW
15.2%check_circle
VERX
-1.9%
NRRNet retention
ACIW
N/A
VERX
N/A
EV / RevenueValuation multiple
ACIW
3.5x
VERX
2.6xcheck_circle
Market CapUSD
ACIW
$5.3Bcheck_circle
VERX
$2.0B
ARR GrowthYoY
ACIW
N/A
VERX
N/A
CAC PaybackMonths to recover
ACIW
N/A
VERX
N/A
insights
Analysis
As of Q2 2026, ACI WORLDWIDE, INC. trades at 3.5x EV/Revenue versus Vertex, Inc. at 2.6x. On the Rule of 40, ACI WORLDWIDE, INC. scores 26.1 compared to Vertex, Inc.'s 21.2, placing ACI WORLDWIDE, INC. ahead in operating efficiency. Gross margins stand at ACI WORLDWIDE, INC. 46% vs Vertex, Inc. 64%.
Sector Context
Both companies operate in the Vertical SaaS sector. The median columns above show where each company stands relative to their peers.