• Salvio Pacheco Square
  • Meet the Ambassadors



  •   Victoria Briskin - Ambassador & Membership Committee Chair/Board of Directors

      Early Alert Canines

      (925) 349-5190


    Victoria is proud to represent the Concord Chamber of Commerce as an Ambassador and is inspired by those who serve others with compassion and kindness.  Her diverse background includes hotel development & operations, sales & marketing, project management, community outreach & nonprofit development.  Victoria is motivated to make a positive difference in the community and values the opportunity to collaborate with colleagues, businesses, local government and neighbors.


  •  Eva Martinez


     (925) 317-1000

    Eva Martinez takes great pride in her role as an Ambassador for the Greater Concord Chamber of Commerce. As the Account Manager at FASTSIGNS of Concord - Martinez, she is fully committed to supporting and empowering local businesses. With her expertise, she effectively boosts brand visibility for businesses of all sizes and fosters meaningful connections within the community.



  • David Benet

    Mobility Matters

    (925) 284-2215


    David Benet is the Volunteer Coordinator for Mobility Matters.  Mobility Matters operates a trained volunteer driver program that provides free, one-on-one, door-through-door rides for seniors and disabled veterans who cannot access other forms of transportation.  His goal is to meet new volunteers which takes him to a least 5 mixers a week.  He is also a member of the Diablo View Rotary Club and the San Ramon Valley Kiwanis Club.


  • Diane Covington

    Mary Kay Cosmetics

    (925) 348-4054


    Diane has been in Leadership as a Director with Mary Kay Cosmetics for over 20 years.  As an established entrepreneur, she loves to connect with people in the community.  Diane has lived in the Concord area for most of her life and has been involved with the Concord Chamber since 2001, serving on the board and now as an ambassador.  Being an involved member has had a huge impact on her business and making connections in the community.


  •   Phillip Delianides

      CrossCountry Mortgage, LLC

      (925) 786-3889


    Phillip has been a resident of Concord and in the Mortgage industry for over 25 years. He was a previous Ambassador for the chamber and has now rejoined as he sees the benefits of networking. Phillip loves the community and has been active with City wide events as well as with the Contra Costa Greek Food and Wine Festival for many years.


  • Mark Hall


    (925) 672-6029


    Mark Hall is the owner of NetSolutions. He designs and implements personalized technology solutions to fit the specific needs of the client to enhance their business value and long reaching success. As a Microsoft certified Small Business Specialist, he offers complete system design and support focusing on Microsoft technologies. Mark is also on the Board of Directors at the chamber.


  • Julie McCoy

    RE/MAX Accord, Broker Associate

    (925) 980-8095


    Julie has been a local Realtor since 1999 assisting buyers, sellers, investors and exchangers.  She raised her two children in the East Bay and in the early days of her career, primarily helped other young families realize their dream of home ownership.  Julie is a licensed Broker Associate and has helped hundreds of clients reach their Real Estate goals.  She is a top producing agent in her office but still treats each client as if they are family.  In her free time, she volunteers with the Chamber and other local organizations, travels, and spends time with family and friends.  


  • Tom O’Sullivan

    O’Sullivan & Associates

    (925) 691-6520


    Thomas O’Sullivan, Certified Public Accountant, license #105388, is the owner of O’Sullivan & Associates in Concord, CA. O’Sullivan & Associates is a public accounting firm serving individuals, small business and non-profits with accounting and advisory services. Prior, he worked over 20 years in the legal industry as a senior financial manager for large regional, national and international law firms. In addition, he was a Controller for a wine logistics firm in Napa, CA.


  • Johana Segura

    24/7 Nightingale Home Care

    (925) 391-3700   


    Johana Segura is an immigrant from Peru who moved to this country at the age of 8 with her family. She comes from a family of health field workers, from doctors to nurses and entrepreneurs. With over 20 years in the Home Care field, she's making her dreams to reality in building her own company 24/7 Nightingale. She is a licensed vocational nurse for 15 years and counting. She holds strong family values and caring for her elders is a must.

    Johana loves to be involved in growing the community and connecting with other businesses. Wanting to give back and providing care for those less fortune is a passion of her. She loves her employees and wants to see them grow and be the best they can be.


  • Jayson Phoebus



    Jayson is the Business Developer for Express Employment Professionals here in Concord. As part of his family business, he enjoys helping as many people as possible by connecting good candidates with good companies here in Contra Costa County. He helps businesses in a wide variety of industries find temporary and full time employees. Jayson is always looking for ways to help the business community in Concord connect with one another and grow their business to benefit the community.


  • Lucy Bermudez

    Non-profit organization, Regalos de Dios



    Lucy has been serving the Concord community for the last 20 years, through her nonprofit organization, Regalos de Dios. Be it handing out food to those in need or hosting her annual Christmas toy giveaway, her love for helping others drives her. Lucy’s passion to serve led her to the Concord Chamber of Commerce, where she proudly serves as an ambassador. Her goal is to build connections that will assist her in supporting the community members that need it the most.


  • Daniel Sweeney

    F&M Bank

    (925) 771-3701   


    Daniel Sweeney is proud to serve as an Ambassador for the Concord Chamber of Commerce. Daniel has worked for F&M Bank in Concord since June of 2017 and his goal is to not only provide exceptional banking products & solutions to both consumer and businesses in the local community but get to know business owners and help them make valuable connections with others in the Concord community in efforts to grow their business. In Daniel’s personal time, he enjoys being married to his wife Jenny and traveling as well as serving as a Rotarian in The diablo View Rotary Club!