One of the top online logo design services is **99designs.** 99designs is a platform that connects businesses with a community of designers. It offers a range of design services, including logo design contests where multiple designers submit concepts, and the client selects the one they like the most.

The strength of 99designs lies in the variety and quality of designs you can receive through the contest format. It allows you to collaborate with multiple designers and choose the best-fit logo for your brand.

Remember that the “top” service may depend on your specific needs and preferences, so it’s essential to consider factors like design style, budget, and the level of involvement you want in the design process.