The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • Quanta Services is the larger company, worth $97.8B, about 7.3 times Sterling Construction Company.
  • Sterling Construction Company grew revenue faster over the last year (+90.1% vs +41.1%).
  • Sterling Construction Company keeps more of each dollar of revenue as operating profit (17.5% vs 6.2%).
  • On earnings, Sterling Construction Company is the cheaper stock (39.0x vs 89.5x).
  • Quanta Services's price assumes faster free cash flow growth: about 20% a year, against 13% for Sterling Construction Company (reverse DCF).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasurePWRSTRL
Market cap$97.8B$13.4B
Share price$705.94$513.00
Revenue (last fiscal year)$28.5B$2.5B
Free cash flow (last fiscal year)$1.6B$363M
Revenue growth, last year+41.1%+90.1%
Revenue growth per year, last 5 fiscal years+21.7%+15.2%
Operating margin6.2%17.5%
Net margin4.0%12.6%
Return on equity13.8%31.8%
P/E (trailing)89.5x39.0x
Price / free cash flow60.3x37.0x
EV / EBITDA33.7x43.7x
FCF growth the price implies19.5%13.0%
Dividend yield0.07%—
Debt / equity1.92x1.33x
Fundamental gradeCC
Superinvestors holding it64
Insider purchases, last 12 months60

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Quanta Services

YearRevenueFree cash flowOp. margin
2021$13.0B$197M5.1%
2022$17.1B$703M5.1%
2023$20.9B$1.1B5.4%
2024$23.7B$1.5B5.7%
2025$28.5B$1.6B5.7%

Sterling Construction Company

YearRevenueFree cash flowOp. margin
2021$1.4B$112M7.6%
2022$1.8B$158M9.0%
2023$2.0B$414M10.4%
2024$2.1B$416M12.5%
2025$2.5B$363M16.3%

Where the revenue comes from

Quanta Services · by segments, 2025

Electric$23.0B81%
Underground and Infrastructure$5.5B19%

Sterling Construction Company · by segments, 2025

E-Infrastructure Solutions$1.5B59%
Transportation Solutions$641M26%
Building Solutions$383M15%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open PWR in Investingly

Questions

Which is bigger, Quanta Services or Sterling Construction Company?

Quanta Services (PWR), at $97.8B against $13.4B.

Is PWR or STRL cheaper?

By trailing P/E, Sterling Construction Company (39.0x) is cheaper than Quanta Services (89.5x). A lower multiple can also mean the market expects less growth.

Which grows faster, PWR or STRL?

Sterling Construction Company: revenue grew +90.1% over the last year, against +41.1%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.