SAN ANTONIO, TX, January 23, 2026 /24-7PressRelease/ -- Dianne Martinez has been selected for inclusion in Marquis Who's Who. As in all Marquis Who's Who biographical volumes, individuals profiled are selected on the basis of current reference value. Factors such as position, noteworthy accomplishments, visibility, and prominence in a field are all taken into account during the selection process.

Marked by more than two decades of dedicated service at AT&T, Ms. Martinez has led a distinguished career in financial systems management. She holds the position of associate director of financial systems, where her expertise in team management and reporting systems has been vital to the company's modernization throughout the 21st century.

In her leadership role, Ms. Martinez manages a team responsible for overseeing the financial and management reporting systems that support AT&T's expense and headcount reporting. Directing the intake of data from multiple accounting systems and general ledgers into a centralized platform, she ensures the accurate allocation of expenses across approximately 300 distinct business units.

A hallmark achievement in Ms. Martinez's career was her development of a comprehensive reporting system capable of tracking contractors and consulting expenses. Recognizing a significant gap in how these costs were monitored, she designed a detailed report that allowed each unit to access and review monthly expenditures on contracting and consulting services. This initiative provided valuable insights into spending patterns, streamlined the company's reporting process and empowered decision makers with the latest information to make informed policy adjustments. Her contributions during this time led to her involvement in various special reporting projects within AT&T.

Ms. Martinez has advanced through several positions at AT&T over the years. Before joining AT&T, she gained valuable experience as a management analyst in the Economic Development Department of the City of San Antonio. She also contributed as a consultant at United Services Automobile Association (USAA) following the completion of her graduate studies, further broadening her expertise in financial analysis and organizational development.

Before venturing onto her vocational path, Ms. Martinez pursued higher education and earned a Master of Business Administration in business administration and management from The University of Texas at San Antonio in 1998 as well as a Bachelor of Business Administration from the same institution in 1996. During her time at the university, she was selected for the inaugural leadership development team, gaining the opportunity to mentor elementary school children.

Reflecting on her storied journey thus far, Ms. Martinez attributes her success to the strong work ethic instilled by her family as well as her upbringing, which emphasized self-sufficiency and resilience. She values cultivating supportive relationships with colleagues and believes that mutual support is fundamental to achieving consistent growth.

Beyond her professional accomplishments and mentoring initiatives, Ms. Martinez has demonstrated a longstanding commitment to civic engagement. A passionate animal lover, she has volunteered extensively with organizations focused on animal welfare by fostering dogs and cats in need until they find their forever homes.

Ms. Martinez enjoys spending time with her family and friends, competing in trivia competitions, solving puzzles such as crosswords and word games, participating in escape rooms and listening to podcasts as a balance to her work at AT&T.

Looking to the future, Ms. Martinez is committed to supporting her team and organization by mentoring future leaders and empowering them to excel in their roles. She remains dedicated to fostering teamwork within AT&T, recognizing employees at every level as essential contributors to a positive work environment. Her career accomplishments, civic dedication and mentorship efforts reflect an outstanding legacy of helping others through everything she does.

About Marquis Who's Who®:
Since 1899, when A. N. Marquis printed the First Edition of Who's Who in America®, Marquis Who's Who® has chronicled the lives of the most accomplished individuals and innovators from every significant field of endeavor, including politics, business, medicine, law, education, art, religion and entertainment. Who's Who in America® remains an essential biographical source for thousands of researchers, journalists, librarians and executive search firms around the world. The suite of Marquis® publications can be viewed at the official Marquis Who's Who® website, www.marquiswhoswho.com.

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