Stocks / CLNE vs NGS

CLNE vs NGS: Which Stock Is the Better Buy?

Clean Energy Fuels Corp. and Natural Gas Services Group, Inc. side by side — fundamentals from SEC filings, refreshed nightly. Sector: Energy.

NGS is the larger company ($0.5B vs $0.4B). On the fundamentals, NGS grows revenue faster (20.4% vs 7.8%); NGS earns a higher net margin (11.6% vs -52.3%); NGS has the stronger return on equity (7.3% vs -39.7%). On the filings, NGS carries fewer potential red flags (0 vs 1). Full numbers below — the stronger figure on each row is in green.

AI verdict — CLNE vs NGS, read from the filings

The stronger business, the cheaper stock, and the risks — synthesised from both companies’ SEC filings, every figure computed not guessed. Not investment advice.

 Clean Energy Fuels Corp. (CLNE)Natural Gas Services Group, Inc. (NGS)
Market cap$0.4B$0.5B
Revenue (latest FY)$424.83M$172.31M
Net income (latest FY)$-222.02M$19.93M
Revenue growth (5y CAGR)7.8%20.4%
Net margin-52.3%11.6%
Return on equity-39.7%7.3%
P/E ratio25.1
Dividend yield0.9%
Profitable years (of last 10)16
Positive free cash flowYesNo

Verify the comparison

Use the filing period and source shown by each tool before treating two figures as comparable.

Compare with another company:

See the full CLNE vs NGS breakdown

Both companies across 19 years of income statement, balance sheet and cash flow — with ratios, health checks and Ask, the SEC-grounded research assistant. Free, no account needed.

Open CLNE's full financials →   Open NGS's full financials →

More comparisons

Frequently asked questions

Which is bigger, CLNE or NGS?

Natural Gas Services Group, Inc. is larger by market capitalization — $0.5B versus $0.4B.

Which grows faster, CLNE or NGS?

Over the last five fiscal years, Natural Gas Services Group, Inc. grew revenue faster — 20.4%/yr versus 7.8%/yr, computed from SEC-filed statements.

Where does this data come from?

All figures are computed from official SEC filings (10-K), refreshed nightly. This is a data comparison, not investment advice.

Keep exploring

CLNE fundamentals → · NGS fundamentals → · All 1,500+ companies → · Free screener →