; Founded in 1969. GVA Kidder Mathews is a real estate agency that offers a range of commercial services. The agency S services include brokerage. Appraisal. Property management and development and consulting. GVA Kidder Mathews has annul sales of more than $2.5 billion. And it manages a property portfolio encompassing over 20 million square feet. The firm S affiliations include the national...