Meet the Team!

Brett Curtis
Co-founder
Brett has 16 years of experience working in B2B publishing with William Reed Business Media.
He managed teams in the food, nutraceutical, cosmetics and pharmaceutical sectors in both Europe and the US.
Titles he managed included FoodNavigator.com, NutraIngredients.com, in-PharmaTechnologist.com, Cosmetics-Design.com, Outsourcing-Pharma.com and BioPharma-Reporter.com.
During this time, he was also responsible for the launch of new products including webinars and online events.

Ambrose Longy
Co-founder
A strong technical background combined with 12 years in the B2B publishing industry allows Ambrose to bring valuable talent to the agency.
Achievements at William Reed Business Media include the launch of several online publications and new product development to grow revenue streams for their digital media portfolio.
Ambrose’s multicultural background helps him nurture productive business relationships based on an acute understanding of contacts’ professional environments.

Denisse Rosales
Marketing Operations Assistant
With 7 years of experience in communication and event management, Denisse has helped to shape impactful experiences for major brands like Lenovo, AWS, and Dell Technologies - from international conferences to digital productions and brand promotion. Multilingual and culturally agile, she thrives in global environments, bringing teams together with clarity and creativity. She has led high-level projects, with a strong focus on strategy, visual identity, and budget management.
Denisse is also a very passionate equestrian and enjoys spending her free time caring for her mare.

Anaïs Renaud
Marketing Operations Assistant
Anaïs first joined our agency three years ago during her work-study program in marketing & communication. After completing her master’s degree and exploring a new sector to broaden her skills, she is now back with us on a full-time basis.
A true boomerang effect: returning to her roots, where it all began, bringing with her even more experience and fresh ideas to help with the agency operations and support Sirius’ growth.
Outside of work, Anaïs is very active: she enjoys dancing, running, and fitness, as well as spending time outdoors. She is also an avid reader, particularly of crime and thriller novels, and occasionally unwinds with PC gaming.
Helen O’Byrne
Head of Business Development
Specializing in demand generation and digital marketing, Helen leverages over 10 years of experience to deliver meaningful results for B2B brands.
Her focus is on helping B2B marketing leaders connect with exclusive audiences and drive demand for their products.
Helen regularly collaborates with Directors to craft effective digital and integrated marketing strategies across diverse channels.
To deliver results, she relies on her knowledge of B2B multi-channel online marketing, applying data-driven insights to generate go-to-market strategies, which enable marketing and sales efforts to align and foster meaningful relationships between buyers and sellers.


