Which has grown faster, ACM or FSS?

Over the past five years, FSS grew revenue faster — ACM at a 2.58% CAGR versus FSS at 15.56%.

Does ACM or FSS pay a bigger dividend?

ACM yields 1.87% and FSS yields 0.52% based on trailing dividends and the latest price.

Is ACM or FSS more profitable?

FSS runs the higher net margin — ACM at 1.87% versus FSS at 11.66%.

How have ACM and FSS total returns compared?

Over the past 10 years, ACM delivered 8.72% and FSS delivered 25.40% annualized total return. Past performance doesn't predict future results.

Aecom (ACM) vs Federal Signal Corporation (FSS)

A side-by-side comparison of Aecom and Federal Signal Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 13, 2026. Differences are shown without an overall score or investment verdict.

ACM

Aecom

$8.07B

$62.81IndustrialsDelayed quote: Sep 16, 2026, 4:00 PM EDT

FSS

Federal Signal Corporation

$7.04B

$115.33IndustrialsDelayed quote: Sep 16, 2026, 4:00 PM EDT

Total return — ACM vs FSS

growth of $100 · dividends reinvested · last 10y

ACM +135.4% (+8.9%/yr)FSS +854.6% (+25.3%/yr)FSS compounded faster over this window

ACM FSS

ACM vs FSS: by the numbers

•ACM is the larger company ($8.07B vs $7.04B market cap).
•FSS converts more revenue to profit (11.66% vs 1.87% net margin).
•FSS grew revenue faster over the past five years (15.56% vs 2.58% CAGR).
•ACM pays the higher dividend yield (1.87% vs 0.52%).

Metrics side by side

Valuation

Metric	ACM	FSS
P/E ratio	N/A	24.86
Forward P/E	15.79	22.05
P/S ratio	N/A	2.88
P/B ratio	N/A	4.67
EV / EBITDA	N/A	14.85
FCF yield	N/A	4.82%

Profitability

Metric	ACM	FSS
Gross margin	5.68%	29.17%
Operating margin	4.22%	16.84%
Net margin	1.87%	11.66%
ROE	13.13%	18.93%
ROIC	12.33%	14.80%

Dividends

Metric	ACM	FSS
Dividend yield	1.87%	0.52%
Payout ratio	N/A	12.72%

Growth (annualized)

Metric	ACM	FSS
Revenue CAGR (5Y)	2.58%	15.56%
EPS CAGR (5Y)	N/A	20.62%
FCF CAGR (5Y)	26.08%	31.04%
Total return CAGR (5Y)	0.39%	24.72%

Frequently asked

Which has grown faster, ACM or FSS?: Over the past five years, FSS grew revenue faster — ACM at a 2.58% CAGR versus FSS at 15.56%.
Does ACM or FSS pay a bigger dividend?: ACM yields 1.87% and FSS yields 0.52% based on trailing dividends and the latest price.
Is ACM or FSS more profitable?: FSS runs the higher net margin — ACM at 1.87% versus FSS at 11.66%.
How have ACM and FSS total returns compared?: Over the past 10 years, ACM delivered 8.72% and FSS delivered 25.40% annualized total return. Past performance doesn't predict future results.

Go deeper

Full ACM analysis Full FSS analysis Interactive comparison tool

Dig into the metrics

Federal Signal P/E ratio Aecom dividend yield Federal Signal dividend yield Aecom ROE Federal Signal ROE Aecom operating margin Federal Signal operating margin Aecom revenue growth Federal Signal revenue growth Aecom free cash flow Federal Signal free cash flow

Aecom & Federal Signal appear in these rankings

Fastest Revenue Growth Stocks Highest FCF Yield Stocks Highest 10-Year Total Return Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 13, 2026.