Independent by design.
Senior by experience.
Selective strategic advisory for organizations that value relationships, creativity and long-term commercial value.
Turning opportunities into lasting value.
640 Management exists to help people, brands and platforms create partnerships that are commercially meaningful and built to last.
We bring together partnership development, brand thinking, hospitality and experiential expertise. Every engagement starts with understanding the business, the audience and the opportunity.
The model is intentionally focused: senior attention, clear thinking and practical execution without unnecessary layers.
Mason Sheen
Principal, 640 Management
Mason is a partnerships and brand marketing executive whose experience spans motorsports, Olympic sailing, marine and yachting, premium hospitality, sponsorship, client relationships and experiential programs.
His work is grounded in the belief that the strongest commercial platforms are built person to person—with clarity, trust and a shared reason to engage.