Jonas Builders is a family-owned and operated business located in Milwaukee, Wisconsin. In 1971 after years of owning and operating a construction firm, Gerald Jonas, and his son Mark, recognized the quality of buildings that were becoming available for purchase at that time due to the changing economy in Milwaukee. Now after three decades of experience in the building/leasing business, let them help you with your space needs. Their sites feature, more than 3,000,000 well-maintained square feet available in the Metro Milwaukee area, many building boast locations with easy access to freeway, numerous historic buildings of distinction, brick and masonry construction, a wide variety of floor plans and square footage to meet your requirements with the flexibility to satisfy the growing demands of your business.