Mina Millas graduated in 1973 from the University of Athens (Anotaty Emboriky) and in 1974 came to Houston as a young bride. After starting her family, Mina went back to school at the University of Houston to get a Bachelors and Master of Science degrees in Accountancy. Upon completion of her studies, Mina passed the Certified Public Accountancy examination (CPA). Mina's first professional engagement was with the Internal Revenue Services (IRS) as an Auditor. While working for the IRS Mina realized that there was a need for personalized professional services to various small businesses. In the beginning of 1992, Mina started her company as a sole practitioner and later changed it to an LLC. In her leisure time, Mina loves to cook and entertain her family, friends and clients.

Jonathan Nieves earned his Bachelor of Business Administration in Accounting from the C.T. Bauer College of Business, University of Houston. He joined Millas CPA LLC in 2015 and currently works with accounts in different industries such as restaurants, ship repair, auto repair, auto sales, retail, etc. His duties include payroll, bookkeeping, sales tax, bank reconciliation, individual and corporation tax returns, quarterly reports, etc. In his leisure time Jonathan enjoys to work on cars as well as spending time with his family.

Jessica Diaz was born and raised in Houston, Texas. She completed her Bachelors of Business Administration in Accountancy at the University of Houston. Jessica joined the Millas CPA team in June of 2016. She is responsible for monthly financial statement preparation, payroll services, and tax return preparation for individuals and businesses. The industries she focuses on are retail, ship repair, auto shops, and restaurants.

Diego Gonzalez is a Houston native who earned his Bachelor of Business Administration in Accountancy from the C.T. Bauer College of Business at the University of Houston. He joined the Millas CPA team in February 2025 and works on maintaining accurate financial records, preparing financial statements, reconciling bank accounts, managing accounts payable and receivable, supporting payroll processes, and contributing to tax return preparation for clients across a variety of industries, including retail, ship repair, antique collections, real estate, and auto repair. Diego is detail-oriented and dependable, with a strong commitment to accuracy and continuous learning in support of clients and the firm. Outside of work, he enjoys exploring new cuisines and following soccer.