top of page



After training as a journalist and working as a magazine editor on both sides of the Atlantic, Andrew started his first marketing company in New York City in 1990. Thunder Publications created a broad range of printed marketing tools for the travel and luxury-goods categories.

Shifting his focus to digital in 2000, Andrew restructured his company as Siera Marketing + Communications. A "company without walls," Siera employs specialized talent when and where needed to provide the highest levels of innovation, creativity and customization for a fraction of the cost of traditional, overhead-heavy agencies.

In 2022, Siera added mobile apps and user-managed platforms to its menu of products.


Thank you for your interest

bottom of page