Garratt-Callahan
Provides industrial water treatment solutions and maintenance services.
Company facts
- Founded
- 1904
- Employees
- 473
- Headquarters
- United States
- CEO
- Jeffrey L. Garratt
- Type
- Private
About
Garratt-Callahan Company is a premier provider of industrial water treatment solutions, recognized as the largest privately-owned company of its kind in North America. Established in 1904, the organization has built a century-long legacy of expertise in maintaining and optimizing water systems for a diverse range of industries, including healthcare, food and beverage, manufacturing, and government facilities. Headquartered in Burlingame, California, Garratt-Callahan operates a nationwide network of ISO 9001:2015 certified manufacturing facilities and analytical laboratories, ensuring the highest standards of quality and compliance. The company specializes in comprehensive water treatment programs designed to enhance the efficiency and longevity of critical equipment such as boilers, cooling towers, and reverse osmosis systems. Garratt-Callahan leverages advanced technology through its proprietary G-C LumiTrac® and G-C SolidTrac® systems, which offer real-time monitoring and precise chemical control to prevent scale, corrosion, and biological fouling. Their commitment to sustainability is evident in their water-saving techniques and eco-friendly product lines, helping clients reduce their environmental footprint while meeting stringent regulatory requirements. Garratt-Callahan distinguishes itself through a client-centric approach, emphasizing direct access to experienced field engineers and technical experts. The company’s service model focuses on proactive maintenance and customized solutions that address the unique challenges of each facility. With a strong corporate culture rooted in fairness, honesty, and integrity, Garratt-Callahan continues to lead the industry by delivering reliable, cost-effective, and safe water treatment strategies that protect both infrastructure and human health.
Open positions
Water Treatment Construction Technician for Data Centers
2025 was a Record Sales Year. Our Largest Sales Growth in Decades. And 2026 is trending to be even better. A Water Treatment Construction Technician will be responsible for supporting water treatment-related…
Water Treatment Construction Coordinator for Data Centers
Wichita Falls- Water Treatment Construction Coordinator for Data Centers A Water Treatment Construction Coordinator in the Data Center Industry will be responsible for supporting construction projects in the U.S.…
Water Treatment Chemical Service Technician
Our 2025 Sales were the Largest Growth in Decades. 2026 YTD Sales are even Better. Water Treatment Chemical Service Technician—Oklahoma City, Oklahoma Garratt-Callahan () is family friendly, profitable, stable, and…
Water Treatment Chemical Service Technician at a Data Center
Water Treatment Chemical Service Technician at a Data Center—Kansas City, MO A Water Treatment Chemical Technician will be responsible for working at a customer's data center in the Kansas City area. The Chemical…
Water Treatment Chemical Technician at a Data Center
Water Treatment Chemical Technician at a Data Center—Cedar Rapids, IA A Water Treatment Chemical Technician will be responsible for working at a customer's data center in the Cedar Rapids, IA, area. The Chemical…
Water Treatment Chemical Site Coordinator
Water Treatment Chemical Site Coordinator — Kansas City MO A Water Treatment Chemical Site Coordinator will be responsible for working at a customer's data center in the Kansas City area. The Chemical Site Coordinator…
Water Treatment Chemist for Data Centers
Data Center Water Treatment Chemical Field Engineer—Amarillo, Texas A Water Treatment Field Engineer will be based in Amarillo, Texas, and responsible for supporting data centers primarily in the Texas Panhandle. The…
Water Treatment Chemical Service Technician
2026 YTD Sales are at Record Levels! Water Treatment Chemical Service Technician—Baton Rouge, Louisiana Garratt-Callahan () is family friendly, profitable, stable, and fiercely private. No layoffs in 120 years. No…
Data Center Water Treatment Field Engineer
Data Center Water Treatment Field Engineer—Dallas, Texas A Water Treatment Field Engineer will be based in Dallas, Texas, and responsible for supporting data centers primarily in the central, TX, area. The Field…
Water Treatment Chemical Site Coordinator at a Data Center
Water Treatment Chemical Site Coordinator — Chattanooga, TN A Water Treatment Chemical Site Coordinator will be responsible for working at a customer's data center in the Chattanooga, TN area. The Chemical Site…
Water Treatment Chemical Service Technician
2026 YTD Sales are at an all-Time Record Levels ! Water Treatment Chemical Service Technician—South Bend, Indiana Garratt-Callahan () is family friendly, profitable, stable, and fiercely private. No layoffs in 120…
