We are Tom and Sarah Sullivan.

Our Name

Dionne Design was founded by Sarah as a web design company in 2000. Dionne is her maiden name.


When we married in 2013– because the company was established– she kept the name. The alliteration of Dionne Design was just too good to give up!


Sarah started her design career building HTML websites. Then, for 10 years, she was the in-house Communications Manager for a Harvard/Massachusetts General research center where she did  web design, graphic design, and social media management.

But having been raised by entrepreneurial parents, she couldn’t stay in the corporate world for long so, in in 2017 she took the business independent.

The Present

In 2020, Tom joined the business, bringing his technical and marketing expertise to the table.

We understand the passion that business owners and creators carry with them and we love using our skills to help them to make a big impact online.

How can we help you?

On a personal note.

Both Tom and Sarah grew up near the water– Tom in New England and Sarah by the Great Lakes in Michigan– so we love being by the ocean. We are so happy to live near the coast. Whenever we're stressed or overwhelmed, a walk by the ocean is what revives us.

Since we were married in 2013, we have traveled to India, Guyana (where we lived for a year), Trinidad and Tobago, Barbados, and Suriname. We love California and we dream about moving to Palm Springs and fixing up a mid-century house.

Read more about:  India | Guyana | Palm Springs

Sarah loves photography and is so happy to have a patient husband who always stops the car for a good photo op. She grew up loving to draw, paint, read, and write fiction. Now she uses those skills for her clients.​

Interested in working together? Let’s talk next steps.