Costello Design Group LLC

Based in Grosse Pointe, Michigan, Costello Design Group LLC has operated since 1994 as a small team offering web, mobile and marketing services to a mix of manufacturing, municipal and consumer-facing clients. Client relationships described on its site include Milliken Millwork, a Midwest building supply manufacturer; AAM, a global automotive driveline supplier; the City of Grosse Pointe Farms, a municipal government; and Cadillac Coffee Company, a longstanding beverage business. These accounts span multiple years, with the agency positioning itself as a continuing technical and creative partner rather than a project-only vendor. The agency's work centers on web strategy planning, web design and development, and ongoing support, paired with content management system development to keep communications synchronized across a client's channels. It also addresses mobile communication, aiming to keep messaging consistent across web-enabled devices, and social marketing intended to build awareness and encourage sharing. Additional listed capabilities include branding, advertising, digital strategy and integrated marketing, which the agency frames as tailoring a mix of tactics to a client's specific needs rather than applying a standard package. For municipal work, this has included website development and internal/external communication tools intended to improve efficiency and accessibility for residents. For manufacturing clients, engagements have covered corporate sites as well as separate aftermarket or divisional web properties, built and supported over multi-year periods.