Overland Park Engineers Professional 7401 W 129th St Affinis Corp. is a growing transportation planning and design firm that strives to build long-lasting relationships with its clients, co-workers and colleagues.Affinis Corporation, engineering, transportation, structural, geotechnical, civil, planning, design, street, highway, bridge, dam, surveying, Overland Park, Kansas City, Springfield, Missouri, construction administration, construction observation, storm water, storm sewers Overland Park KS Engineers Professional Affinis Corp www.affinis.us Business Reviews Affinis Corp Testimonials