Skip to content

About the Founder

About the founder
A long-time marketing professional, Coleby Mantz has extensive experience in marketing working on both the corporate and agency sides. Coleby has led the marketing efforts at various companies including Tech Pak, Parametric Technology (PTC), and Aviva Labs. She has also worked for agencies where she was an outsourced marketing professional for a number of other companies including Applix (now IBM), Crossbeam Systems, and Progress Software. More recently, she has worked with Charles River Interactive (CRI) on clients such as MIT Sloan Executive Education, EMC (now Dell), and BlackBoard.

Testimonial 6

“I’ve worked with Coleby for ten+ years. She has filled many different roles for us including, email manager, webinar lead, and project manager. She has always been pleasant, transparent, reliable, and thorough. I would highly recommend her to anyone!”


Julie Harju
Director of Marketing and Communications
MIT Sloan Executive Education

Testimonial 3

“I have worked with Jetty Marketing in the past and appreciated the strategic input as well as the tactical know how to create and get the marketing programs off the ground. With their help, we generated tons of new, high-quality leads. Plus, it didn’t feel like an outside resource but rather an integrated part of the team—and they are fun to work with.”

Kellee M.,
Global Channels Marketing Manager

Testimonial 2

“I had a large project that took me out on the road for several weeks, and I needed a reliable marketing resource that could manage the company’s ongoing marketing projects in my absence. I also needed an expert who could get familiarized with the business very quickly, and Jetty Marketing was the perfect solution.”

Gloria M.,
Marketing Manager

Testimonial 4

“Jetty Marketing was instrumental in helping me create a foundation for our marketing efforts. Being a start-up, we are thinly staffed and needed a fast-turn around solution to getting some of the key stuff done. Jetty Marketing came in and added value immediately building marketing plans, brand guides, and sales materials that we continue to get value from today. They have the ability to think strategically and act tactically, which is hard to come by. All around it was a great experience to get us off the ground.”

Michelle H.,
Vice President, Marketing

Testimonial 5

“I really appreciate the excellent project management oversight as well as the writing work from your staff.  We could not have done it without you!  Thank you, Jetty Marketing, for all your help and leadership!!!”


Phuong Nguyen
Senior Program Manager
Boston Scientific

Testimonial 1

“Coleby Mantz of Jetty Marketing did a terrific job helping me articulate my product, my target market, and my value proposition for my new consultancy. Starting with a detailed marketing audit, she guided me through the process of developing a clear and focused go-to-market plan. Coleby paid attention to all the details on the website. Social media-link placement, call-to-action and graphic placements were all part of her final product. Coleby brings a wealth of knowledge, a commitment to excellence, and a winning attitude to her projects. She will make you work hard, then she will deliver high-quality work on time and on budget.”

Marc Mackin,
Principal, Facet Solutions LLC