We strive to foster an engaging and intellectually stimulating environment that challenges you to push the boundaries of what you thought was possible in your career. We believe that by elevating the role of the executive assistant, we can enhance the productivity and results of the entire organization. Our goal is to create a community where, together, assistants can learn, grow, and thrive.
Kelly was the EA to the CEO of Twitter before being promoted to the company’s Chief of Staff. She helped steward the company from its initial growth all the way through IPO. After leaving the company, she rejoined her bosses Dick Costolo and Adam Bain as a Founding Partner at their venture firm, 01 Advisors. Today, Kelly spends most of her time advising the firm’s 50+ technology companies.
After almost a decade as a C-Suite Executive Assistant + Chief of Staff, Kelly realized there was a black hole of information for assistants. She founded EA Mafia first and foremost to connect C-Suite EAs in tech to one another to share best practices, resources, and learn from one another. That vision has expanded to EA Rise to serve as a platform for assistants under the C-Suite to define where their learning gaps may be and find the resources they need to uplevel their career.
Co-Founder & CEO, Tack Advisors
10+ Years in Luxury Hospitality Management
Sierra has accumulated over two decades of experience working in administrative and executive operations within a diverse range of industries including finance, real estate, communications, and technology. Most recently, she served as the Executive Staff Lead, Office of the CEO at Twitter where she held Chief of Staff responsibilities overseeing a variety of critical executive operations including leading the global administrative team. Originally from San Francisco, Sierra is currently taking a long awaited sabbatical.
Rachel Chan Brown
Chief of Staff, Tack Advisors
5+ Years in Sports and Hospitality