Company Description

Arq, Inc., an environmental technology company, engages in the sale of consumable air, water, and soil treatment solutions based on activated carbon in the United States and Canada.

Its products include granular activated carbon, powdered activated carbon, and colloidal carbon products; and additives for air emissions control.

The company’s products are used in various applications, including water treatment, ground water remediation, soil sediments, air emissions, and asphalt additives.

The company was formerly known as Advanced Emissions Solutions, Inc. and changed its name to Arq, Inc. in February 2024.

Arq, Inc. was founded in 1997 and is headquartered in Greenwood Village, Colorado.

Arq, Inc.

Country	United States
Founded	1996
Industry	Pollution & Treatment Controls
Sector	Industrials
Employees	202
CEO	Robert Rasmus

Contact Details

Address: 8051 East Maplewood Avenue, Suite 210 Greenwood Village, Colorado 80111 United States
Phone	720 598 3500
Website	arq.com

Stock Details

Ticker Symbol	ARQ
Exchange	NASDAQ
Stock Type	Common Stock
Fiscal Year	January - December
Reporting Currency	USD
CIK Code	0001515156
CUSIP Number	00770C101
ISIN Number	US00770C1018
Employer ID	27-5472457
SIC Code	2890

Key Executives

Name	Position
Clay Smith	General Counsel and Secretary

Latest SEC Filings

Date	Type	Title
Jun 18, 2026	8-K	Current Report
Jun 11, 2026	8-K	Current Report
May 27, 2026	8-K	Current Report
May 6, 2026	8-K	Current Report
May 6, 2026	10-Q	Quarterly Report
May 1, 2026	8-K	Current Report
Apr 28, 2026	ARS	Filing
Apr 28, 2026	DEFA14A	Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Apr 28, 2026	DEF 14A	Other definitive proxy statements
Apr 27, 2026	SCHEDULE 13G/A	Filing

View All SEC Filings