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COMFORT SYSTEMS USA INC

LISTEDNYSE

SYMBOLFIX

SIC1731

STATE OF INC.–

FISCAL YEAR ENDSDecember 31

CIK1035983

ELECTRICAL WORK · LARGE ACCELERATED FILER · 10 FISCAL YEARS OF SEC XBRL DATA, 2016–2025

Fiscal years labelled by the calendar year in which they end. Bars in $ billions; per-share figures as reported.

CAPITALIZATION 12/31/25

($ millions)	Amount	%
Total debt	145	5.6
Stockholders' equity	2,449	94.4
Total capitalization	2,594	100.0

35,194,329 shares outstanding at 17 July 2026 (cover page of the 10-Q filed 23 July 2026).

LONG-TERM DEBT 12/31/25

($ millions)	Amount
Long-term debt, incl. current maturities	145
Long-term debt, noncurrent	139
Current maturities	6

CAPITAL STOCK 12/31/25

Common shares authorized	102,969,912
Common shares issued	41,123,365
Treasury shares	5,946,145
Par or stated value per share ($)	0.01
Outstanding at 7/17/26	35,194,329

DIVIDENDS DECLARED/PAID

Fiscal year	Per share $	Payout %
2025	1.95	6.8
2024	1.20	8.2
2023	0.85	9.4
2022	0.56	8.2
2021	0.48	12.2

HISTORY AND BUSINESS

HISTORY: State of incorporation not stated in SEC records.

BUSINESS: Classified by the SEC under Standard Industrial Classification 1731, Electrical Work. Large accelerated filer. Principal executive office: 9753 Katy Freeway, Suite 700, Houston, TX 77024. Fiscal year ends December 31. For a description of the business, see Item 1 of the latest 10-K.

CONSOLIDATED INCOME ACCOUNT, YEARS ENDED

($ millions)	12/31/25	12/31/24	12/31/23
Revenues	9,102	7,027	5,207
Cost of revenues	6,906	5,551	4,216
Gross profit	2,196	1,476	991
Selling, general and administrative	883	730	574
Depreciation and amortization	62	48	38
Operating income	1,315	749	418
Interest expense	9	7	10
Income before income taxes	1,293	667	388
Income taxes	271	144	65
Net income	1,023	522	323
Earned per share, diluted ($)	28.88	14.60	9.01
Dividends per share ($)	1.95	1.20	0.85

CONSOLIDATED BALANCE SHEET

($ millions)	12/31/25	12/31/24
Cash and equivalents	982	550
Inventories	84	59
Total current assets	4,111	2,790
Property, plant and equipment, net	388	277
Goodwill	1,026	875
Total assets	6,441	4,711
Total current liabilities	3,394	2,583
Long-term debt	139	62
Total liabilities	3,992	3,006
Stockholders' equity	2,449	1,705
Total liabilities and equity	6,441	4,711

TEN-YEAR STATISTICS: FISCAL YEARS ($ millions except per share)

Fiscal year ended	Revenues	Oper. income	Net income	Net margin %	EPS diluted $	Div. per share $	Oper. cash flow	Capital expend.	Free cash flow	Total assets	Total liabilities	Total debt	Stockholders' equity	ROE %	Debt / equity
12/31/25	9,102	1,315	1,023	11.2	28.88	1.95	1,186	155	1,031	6,441	3,992	145	2,449	41.8	0.06
12/31/24	7,027	749	522	7.4	14.60	1.20	849	111	738	4,711	3,006	68	1,705	30.6	0.04
12/31/23	5,207	418	323	6.2	9.01	0.85	640	95	545	3,306	2,028	44	1,278	25.3	0.03
12/31/22	4,140	254	246	5.9	6.82	0.56	302	48	253	2,597	1,598	256	1,000	24.6	0.26
12/31/21	3,074	188	143	4.7	3.93	0.48	180	22	158	2,209	1,403	388	806	17.8	0.48
12/31/20	2,857	191	150	5.3	4.09	0.42	287	24	262	1,757	1,061	236	696	21.6	0.34
12/31/19	2,615	164	114	4.4	3.08	0.40	142	32	110	1,505	920	226	585	19.5	0.39
12/31/18	2,183	150	113	5.2	3.00	0.33	147	27	120	1,063	565	77	498	22.7	0.15
12/31/17	1,788	99	55	3.1	1.47	0.29	114	35	79	881	463	60	418	13.2	0.14
12/31/16	1,634	102	65	4.0	1.72	0.28	91	23	68	709	332	3	377	17.2	0.01

Net margin = net income ÷ revenues; ROE = net income ÷ year-end stockholders’ equity; total debt = long-term debt including current maturities plus short-term borrowings/commercial paper, as tagged in XBRL; free cash flow = operating cash flow − purchases of property, plant and equipment; d = derived as total assets − total equity where the filing does not tag total liabilities; – = not reported in XBRL for that year.

REGISTRANT:

COMFORT SYSTEMS USA INC
CIK 1035983 · EIN 76-0526487

PRINCIPAL OFFICE:

9753 Katy Freeway, Suite 700, Houston, TX 77024
Tel.: 7138309600

INCORPORATED:

–

INDUSTRY (SEC SIC CODE):

1731 · Electrical Work

FILER STATUS:

Large accelerated filer

LATEST ANNUAL REPORT:

10-K for period ended 12/31/25, filed 19 February 2026

FORMER NAMES:

COMFORT SYSTEMS USA INC

RECENT FILINGS (ANNUAL REPORT REFERENCES BELOW):

8/3/26	8-K	period 8/3/26
7/23/26	10-Q	period 6/30/26
7/23/26	8-K	period 7/23/26
6/22/26	8-K	period 6/19/26
5/21/26	8-K	period 5/18/26
5/1/26	8-K	period 5/1/26
4/23/26	10-Q	period 3/31/26
4/23/26	8-K	period 4/23/26

Sources: SEC XBRL company facts (all financial figures) · SEC submissions (registrant, address, SIC, filings) · annual reports: 10-K FY2025 (filed 2/19/26) · 10-K FY2024 (filed 2/20/25) · 10-K FY2023 (filed 2/22/24) · 10-K FY2022 (filed 2/22/23) · 10-K FY2021 (filed 2/23/22) · 10-K FY2020 (filed 2/25/21) · 10-K FY2019 (filed 2/26/20) · 10-K FY2018 (filed 2/21/19). Values are the latest figures filed for each fiscal year (restated where a later 10-K restated them). Ratios and free cash flow are Pathos calculations from those figures. Retrieved 31 October 2026.