analyticsVertical SaaS
Data as of Q4 2025
Summary Verdict
CSGS: 1—ACIW: 4wins
Rule of 40
13.7CSGS
28.0ACIW
check_circleACIW leads
Revenue Growth
2.2%CSGS
10.4%ACIW
check_circleACIW leads
Gross Margin
49%CSGS
49%ACIW
check_circleCSGS leads
FCF Margin
11.6%CSGS
17.6%ACIW
check_circleACIW leads
Operating Margin
9.7%CSGS
18.8%ACIW
check_circleACIW leads
NRR
—CSGS
—ACIW
Metric
Rule of 40Efficiency score
CSGS
13.7
ACIW
28.0check_circle
Revenue GrowthYoY
CSGS
2.2%
ACIW
10.4%check_circle
Gross Margin% of revenue
CSGS
49%check_circle
ACIW
49%
FCF MarginFree cash flow
CSGS
11.6%
ACIW
17.6%check_circle
Operating MarginGAAP
CSGS
9.7%
ACIW
18.8%check_circle
NRRNet retention
CSGS
N/A
ACIW
N/A
EV / RevenueValuation multiple
CSGS
N/A
ACIW
N/A
Market CapUSD
CSGS
N/A
ACIW
N/A
ARR GrowthYoY
CSGS
N/A
ACIW
N/A
CAC PaybackMonths to recover
CSGS
N/A
ACIW
N/A
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insights
Analysis
As of Q4 2025, CSG SYSTEMS INTERNATIONAL INC trades at N/A EV/Revenue versus ACI WORLDWIDE, INC. at N/A. On the Rule of 40, CSG SYSTEMS INTERNATIONAL INC scores 13.7 compared to ACI WORLDWIDE, INC.'s 28.0, placing ACI WORLDWIDE, INC. ahead in operating efficiency. Gross margins stand at CSG SYSTEMS INTERNATIONAL INC 49% vs ACI WORLDWIDE, INC. 49%.
Sector Context
Both companies operate in the Vertical SaaS sector. The median columns above show where each company stands relative to their peers.