The Partners

Billie Mitchell

Billie Mitchell born in Los Angeles was raised in NYC. Billie Mitchell is an event producer, publicist and previous restaurant owner. Billie Mitchell is the founder of Supernova Models & Billie Mitchell public relations and events.  Billie is known as a master net-worker and the Go to Girl in the business with an excellent reputation in the business. Billie Mitchell has  the experience in being a celebrity wrangler, casting director, booking agent, publicist, talent manager, staff developer, project manager, as well as a creative director and producer for many music videos., Billie Mitchell also added correspondent hosting to her resume, and has interviewed many celebrities on the red carpet.

Billie Mitchell started with supernova models in 2009. Supernova Models was known for placing and coaching models on the runway for NYFW, music videos, magazines, trade shows, and events. Supernova Models casted models and actors for a variety of commercials, television shows and movies. Supernova Models, also produced fashion shows for many different designers

In, 2012 Billie Mitchell, launched her second company called Billie Mitchell Public Relations and Events at “Fame at the Mansion” at the playboy mansion for her client, the “Angel Wish Foundation”, hosted by “P. Diddy” & Pam Anderson. Ms. Pamela Anderson honored, Hugh Hefner with the “humanitarian award” Billie was the publicist, for the event and the  producer for the Fashion show with celebrity designer, Dina Barel and Von Vonni and Lisa D’Amato from the hit show, “America’s top model.”

In, 2014 Billie Mitchell produced another charity as the event coordinator and Producer for City Gala at the Vineyard in Beverly Hills, with James Cameron, Halle Berry, Charlize Theron for the charity, C.I.T.Y. (communities inspiring today’s youth)

Billie Mitchell Launched her Events company at the cutting room, in 2015 for the legacy project dinner with honorary guest, President George W. Bush and Christopher Noth. For the Pvblic Foundation and the the US dream Academy.

Billie Mitchell in February 2016 Billie Mitchell became the executive event producer and partner for City Gala fundraiser for the charity C.I.T.Y. with keynote speaker, Sir Richard Branson including honorees ceremonies, for John Paul DeJoria, and Buzz Aldrin. We also are celebrating Jane Seymour’s birthday, who will be the moderator for the evening.

Billie Mitchell now has partnered with world renowned event designers and event producers Sandra Costa, and Natasha June. Together our team will continue to go on to produce A list events with A list Class and style.



Sandra Costa’s classic brand of design work is a culmination of a lifespan of inspired innovation, supported by knowledge and experience where decisions are not only made on price, but are based on the client’s priorities, perception and emotion. Ms. Costa’s entrepreneurial spirit and business acumen relies upon her well-developed extensive network of design and technology based relationships. Careful to maintain equilibrium between design and culture, Sandra Costa stresses the importance of the challenge presented by cultural differences in international business practices and visual composition. Sandra looks upon every project undertaking as an enticing opportunity for fresh, unique design as well as the development of cross-cultural aesthetics in pursuing the global market.

Sandra Costa’s commitment to Interior Design, Building Science and Sustainability.
“I am devoted to working with a team of industry professionals who work towards illuminating the carbon footprint a design leaves upon the planet. Therefore, I am focused on optimizing my contribution to the project’s potential to react to, rather than impose upon, the surrounding scenery. Each project is an opportunity to explore new avenues of interior and exterior design, building science and construction methodologies. My motto is: “DESIGN IT SMART, BUILD IT STRONG, FINISH IT RIGHT!” Smart technology is factored into each component of my designs providing the ability to intuitively sense and change with the surrounding environment.”

Foreseeing the need for a higher standard of practice with the interior design community, she worked with the American Society of Interior Designers ( ASID ) as part of the inaugural core group garnering the Certification of Interior Designers now mandated by the State of California in 1991. Segue rapidly into 1995; Sandra Costa was appointed multiple projects within the famed Hilton Development Group, opening new pathways into other areas of interior and exterior architectural design.

In 2012, The Imperial Order of Constantine the Great and St. Helen, founded in 330 A.D., bestowed the title of Dame Commander Sandra Costa, the lady counterpart of Knighthood, honoring her for heraldic achievement and duty arising from her unparalleled professionalism. She proudly supports the charitable services of the association by raising funds to assist with homeless families.

In 2013 Sandra Costa received an honorable “ Person of the Year “ Design Award from BLLA, Boutique Lifestyle and Leisure Association. The BLLA Association is a high profile group of global hotel owners and interior design members who voted Award and chose Sandra Costa. Other industry certifications include the American Society of Interior Designers (ASID), American Institute of Architects Allied (AIA), International Interior Design Association (IIDA), and California Council for Interior Design Certification (CCIDC), Contractors State License 673284 (GC).

Sandra Costa and the Sandra Costa Design Group are current and on the leading side of today’s design and sustainable requirements.

ASID American Society of Interior Designers
CCID California Certified Interior Design
IIDA International Interior Design Association
AIA Architect Institute of America Allied Member
BLLA 2013 Person of the Year , Boutique Life & Leisure Association


For over 15 years, discerning corporate, entertainment, and exclusive bridal clients have sought out Natasha June for her unparalleled experience, innovative thinking, and creative design sensibility, to produce world class events.

Based in Los Angeles, South African-born Natasha June travels internationally to meet the needs of her corporate, luxury, entertainment and individual clientele. She develops and executes strategies to create unforgettable experiences, be it to drive brand awareness, delight event attendees, or to create lifetime memories with more intimate events.

Natasha has recently merged with Sandra Costa as the Principal Executive Event Creator and Producer of the Sandra Costa Design Group, and is excited to add value to the exceptional global design work of Sandra Costa.

With their combined talents and Natasha’s elegant aesthetic, solid work ethic and superior customer service, Natasha looks forward to continuing to attract high-profile events, from glamorous entertainment showcases, to Fortune 500 corporate events, to intimate experiences for smaller groups, with the singular focus of always over-delivering on clients’ goals and expectations.