Based in Phoenix, Arizona, Honeywell Process Solutions is a division of Honeywell Automation and Control Solutions (ACS) and has been a pioneer in automation control for more than 30 years. Honeywell Process Solutions and......Based in Phoenix, Arizona, Honeywell Process Solutions is a division of Honeywell Automation and Control Solutions (ACS) and has been a pioneer in automation control for more than 30 years. Honeywell Process Solutions and the other units of ACS comprise nearly $10 billon of Honeywell’s overall $31 billion business. Honeywell Process Solutions employs more than 10,000 people in 95 countries and serves several industries, including refining, oil and gas, pulp, paper and printing, power generation, chemicals, life sciences, and metals, minerals and mining.