Blue Water Area Chamber of Commerce - Port Huron, MI

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Chamber Staff

Thelma Castillo, President and CEO,

Thelma received a Bachelor of Arts degree from the University of Michigan and received a J.D. from the Detroit College of Law and became a license attorney in 1988. 
In 2004, she earned the designation of Certified Chamber Executive (CCE), from the American Commerce Chamber Executives, a national organization.  She is also a graduate of the Center for Creative Leadership, Institute for Organizational Management and
Leadership Detroit XII.

She was previously employed by the Detroit Regional Chamber, one of the largest chambers in the country.  She brings over 18 years of chamber experience.  Her areas of expertise included Workforce Initiatives, Talent Initiatives, Leadership Initiatives, Advocacy, Human Resources and Operations.  Through her leadership in Human Resources the chamber was recognized by several organizations for its human resources practices and won several awards as one of the best places to work, for its diversity efforts, for its workplace flexibility and as one of the cool places to work.  Over the years, she has been able to secure over 15 million dollars in grant funds to fund a number of chamber programs.  One of those programs was “Intern in Michigan”, a statewide website program that focuses on keeping talent in the region by retaining its talent via internships.  She also has experience working with chambers at the local, state and national levels, economic development organizations, educational institutions, workforce boards, civic organizations, political organizations, law enforcement agencies and community organizations.   

Thelma has also been involved in the political arena and was a member of several boards; Institute of Organizational Management for the U.S. Chamber of Commerce, American Red Cross Southeastern Michigan, Legal Aid and Defender Association, Alliance for safer, greater Detroit, SER Metro Detroit, Hispanic Business Alliance, Workforce Innovations in Economic Development (WIRED) and Intern in Michigan. 

Outside of work, Thelma is a big sports fan, enjoys bowling and being with family and friends. 

She is married to Len Frisch, a Detroit Fireman, has one son JJ Dominguez, who resides in Northville, MI.  Thelma and Len currently reside in Croswell.

Thelma is extremely excited to be working at the Blue Water Area Chamber.  She looks forward to working with new and familiar faces to further the chamber goals and be that voice in the business community.


Amy S. Lutz, Membership and Marketing Director,

was born and raised in Port Huron. She graduated from Port Huron High School as a member of the National Honor Society. Then, in May 2008, Amy became a Magna Cum Laude graduate of St. Clair County Community College (SC4)with an Associate of Liberal Arts degree; majoring in business and accounting. A scholarship through the Community Foundation of St. Clair County helped to make this possible. Since then, she earned an Associate of Business degree from SC4 while attending Walsh College of Accountancy and Business Administration. In September 2011, Amy graduated Cum Laude, Delta Mu Delta, from Walsh College with a Bachelors of Business Administration Accounting Processes degree.

Amy’s professional experience ranges from bookkeeping, business development, office administration, and IT, to retail, sales, and teaching dance and preschool. She enjoys learning and assisting with all areas of business, both the front-end and behind-the-scenes responsibilities. This year is her second year being a member of the Michigan Association of Chamber Professionals' (MACP) Marketing & Communications Committee. Amy looks forward to attending the MACP Conference each Fall. While there, she welcomes the opportunity to brainstorm with other local chambers, participate in professional development workshops, and bring home invaluable ideas to excel the Blue Water Area Chamber and its members.

Outside of work, Amy enjoys being involved with church and her son’s extracurricular activities. She has been the director of, and assisted with the preparations and operations of, Vacation Bible School for a few years. Since the Fall of 2010, Amy has enjoyed being the Treasurer of Port Huron’s Cub Scout Pack 178. In the Spring and Fall, she delights in being her son’s AYSO soccer coach.

The Blue Water Area is dear to Amy and she is excited to have the opportunity to help the local businesses to grow and prosper.

Danielle Warren, Membership & Marketing Administrator

Born in Clovis, New Mexico and raised in Port Huron, Danielle is a 2004 graduate of Port Huron Northern High School. Continuing her education, she graduated from the Health Enrichment Center Inc. in 2007 with the equivalency of a bachelor’s degree in massage therapy.

Danielle’s professional background consists of massage therapy, restaurant management, manager of hockey operations for the local NAHL Port Huron Fighting Falcons Junior Hockey Team, and currently, Membership and Marketing Administrator for the Chamber.

Danielle is a very social and energetic individual who excels in customer relations. She has a passion for people and for her community. Danielle plans to further her education in business and become more involved within the Blue Water Area as a young professional.

Outside of work, Danielle spends most of her time at the hockey arena. This is nothing new to her as she grew up with two brothers who play, and keeping with family tradition her son, Cameron, has been playing the game since he was two.




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