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About MDR Advertising
a Full-Service Advertising + Digital Marketing Agency

When something works, you keep it.

That’s why we’ve kept the same principles for the last four+ decades. And it’s why our clients hang around. MDR is founded upon partnerships that stick and ideas that work. So, while our office has grown and some faces have changed—our story hasn’t.

Tested & trusted by some of the strongest brands.

Founded on the simplest of principles. Do what's right.



“Most agencies go after the next big account. We prefer to build it.”

-Stephen Rybak, Principal


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Our staff has roots in Corpus Christi, Houston, San Antonio and McAllen.

Showing Sara Antonetz, who is based near Corpus Christi, TX.

Sara Antonetz

Sr. Director Web Services

Sara oversees our Web Department where she’s able to flex her pixel prowess and organizational skills across multiple industries. Originally a graphic designer, her razor-sharp coding skills are accented by her keen eye for clean, user-friendly design. Her list of awards runs the gamut, excelling in industries from public education, industrial, arts and entertainment to retail and energy. But for clients, it is always her unmatched skill for meticulous real world problem-solving and her magnetic leadership skills that shine the brightest.

For over 12 years, Sara's web development and UX skills blend seamlessly with our client digital strategies for a consistently trackable experience. HIPAA certified and ADA compliant, she ensures a client’s digital footprint is both beautiful and inclusive from construction to launch.

USS Lexington Museum, Discover Kemah, Hogan Homes, NEC Co-op Energy, Rally Credit Union, Port of Corpus Christi, Halo Flight, Buc Days, Tour de Boerne, Driscoll Health System

Showing Nancy Zuniga, who is based near Corpus Christi, TX.

Nancy Zuniga

Sr. Director Client Services

A driving force behind the average 12-year tenure of MDR clients, Nancy has a natural rapport with clients and an amazing knack for decision-making that’s proven to be instrumental in coordinating winning efforts for many of the agency’s largest accounts. Previously a sign language interpreter, Nancy is a skilled listener and thoughtfully guides the Client Services team, overseeing their strategic account planning, development and first-rate campaign execution.

She believes collaboration is the key to successful marketing and the most rewarding part of her job is cultivating and nurturing those important relationships. From the biggest economic engine in the region to a nonprofit that provides food and shelter to our neighbors in need, Nancy ensures that every MDR client receives top-notch service and quality marketing that helps them reach their goals.

Rally Credit Union, CITGO, Corpus Christi Independent School District, HEB Tournament of Champions, Port of Corpus Christi, and Unique Employment & HR, Art Museum of South Texas and Buc Days

Showing Stephen Rybak, who is based near Corpus Christi, TX.

Stephen Rybak

Principal & CCO

For over 20 years, Stephen has delivered award-winning brand work and led the development, direction and production of mass media advertising campaigns that deliver. While big problem-solving for both small startups and major brands, he accumulated 300+ industry creative awards as a Young Business Professional Top 40 under 40.

A proud marketing-degreed alum of Texas A & M University–CC, he continues to develop local graduate talent and give back to his hometown. Taking ownership in 2010, he brings the perfect blend of creativity and business acumen to the MDR equation. His results-based leadership has built the agency’s growing client roster. He continues to lead with his signature hands-on approach and actively problem solves for all MDR clients. He and his carefully assembled A-team of passionate, seasoned marketing and advertising professionals are known for getting the job done, right.

CITGO, Shiner Beers, HEB, Stripes, CHI Global, Whataburger, Rally Credit Union, CC Medical Center, Driscoll Health System, American Cancer Society, Port Aransas Tourism

Showing Jackie Swonke, who is based out of Houston, TX.

Jackie Swonke

Sr. Director Creative Strategy

Jackie has over 18 years of marketing and advertising experience, from both in-house and the agency side of the business. She’s worked closely with B2C and B2B clients in a range of industries, leading creative teams to build brands and develop award-winning ideas that become moving and effective marketing campaigns. She sees team collaboration as the key to newer, bigger, better; and she is sincerely delighted when she knows our work has struck a chord with a client. In her own words, "If we can catch them off-guard with the quality of our work, we’ve done our job."

From concept to production, her work expands from local to international, including industrial, manufacturing, oil and gas, grocery, retail, healthcare, food & beverage and more. She also brings her client-side experience to bear as a former in-house writer for Foley's and creative lead for Direct Energy. Jackie has spent the last decade leading diverse creative teams to design innovative and result driven strategies that achieve objectives and exceed expectations.

Foley's (Macy’s), ExpressJet, Star Furniture, Direct Energy, HEB Central Market, Champion Energy, CITGO, Port Aransas, St Mary’s University, Kemah, CCIA, Port of Corpus Christi, Water Street Restaurant Brands, Regional Transportation Authority, Rally Credit Union, Driscoll, NEC

Debra Estrada

Sr. Director of Finance

When it comes to billing and accounts payable, MDR has a stellar record amongst media reps, vendors and clients. That’s mostly thanks to 22 years of Debra’s meticulous attention to detail and her never-ending agility to adapt how we maintain and monitor client billing.

Her work experience includes legal, oil and gas, telecommunications and advertising industry accounting and she also spent 9 years at the Chamber of Commerce in the marketing, communications, accounting & executive departments prior to becoming the glue that keeps it all together at MDR.

Debra’s financial stewardship has our agency working like a well-oiled machine, maintaining our impeccable reputation as an exemplary partner for budget and billing reconciliation.

These days, Debra oversees all financial, legal, and corporate matters including accounting, human resources, and office management.

Sherry Robeson

Sr. Director Marketing & Development

Sherry is a relentless, resourceful marketer. Her background in brand building and integrated marketing management helps her move easily from vision to strategy to high performance execution and outcomes. With her 18+ years experience leading regional strategies for Fortune 100 brands, she brings award-winning corporate brand management, new market development and field marketing finesse from her roles directing large scale efforts across diverse Texas geographies.

She believes the ability to listen and the capacity to innovate greatly impacts the power, strength and longevity of an established brand. It has been the “how” behind gaining competitive advantage and new market share throughout her career.

T-Mobile, Metro by T-Mobile, Gold’s Gym International, Gold’s Gym Express Sprint-Nextel, Whataburger, Taco Cabana, Corpus Christi Medical Center, Texas A&M University-CC, APBA, USWA, Miss Texas USA

Showing Quinton Smithwick, who is based near Corpus Christi, TX.

Quinton Smithwick

Media Director

Quinton, an ex-collegiate baseball player and Magna Cum Laude graduate of The University of Texas and St. Mary’s University is now a multi-faceted digital marketer with deep experience working with Fortune 500 companies in the hospital, healthcare technology, credit reporting, therapeutics, furniture and tourism industries.

With a growing list of digital marketing certifications and campaign accolades, he is also a certified product marketing manager in the fashion industry and has a background in research and data analysis which helps him guide touchpoint maps and digital strategies throughout a customer journey.

A true strategist at heart, Quinton is a critical thinker, an avid reader, and consummate researcher who loves to grow, learn and solve complex issues. He also brings his artistic flair for drawing and graphic design that round out a unique arsenal of skills and talents.

Unique HR, Corpus Christi International Airport, Regional Transportation Authority, Discover Kemah, Star Furniture, Driscoll Health System

Showing Jenna Ward, who is based out of Corpus Christi, TX.

Jenna Ward

Sr. Media Manager

Bio Coming Soon

Rebeka Eaton

Sr. Human Resources Manager

Bio Coming Soon
Showing Ruth Hirsch, who is based near Houston, TX.

Ruth Hirsch

Associate Creative Director

Complex subject matter. Sensitive issues. Constantly shifting goals. Over the past decade as a writer, Ruth has helped clients face these challenges and more for B2B, B2C, technical, and internal facing projects. Ruth has a reputation for being the ”yes, and…” creative that clients fight to have on their team because of an otherworldly ability to eloquently connect intent to outcomes.

She believes the one thing that rings true no matter what: successful communication starts with humanizing your target audience. Her mix of high emotional intelligence (EQ) and empathy come together to tailor messaging to the people who would be reading it.

Ruth’s experience spans industries and focus areas—from helping a Fortune 50 energy company usher in culture change among one of its largest internal groups, to creating compelling external campaign messaging for Daikin, the world’s No. 1 HVAC producer.

Daikin, Star Furniture, Direct Energy, Foley's (Macy’s), Champion Energy, CITGO, City of Portland, city of Kemah, CC International Airport, St. Mary’s University, Port of Corpus Christi, Regional Transportation Authority, Driscoll Children’s Hospital

Natalia Bily

Senior Art Director

Sara Kilsby

Senior Art Director

Ross Hoyt

Account Strategist

Alyssa Garza

Senior Designer

Amal Adi

Sr. Copywriter

Grace Izaguirre

Traffic Manager

Ramon Patlan

Motion/Sound Designer

Venessa Santos-Garza

Account Strategist

Rebecca Neblett

Account Strategist

Jessica Flores

Account Strategist

Amanda Howell

Social Media Marketer

Carson Bourque

Design & Web Producer

Jennifer Hancock

Finance Manager

Noe Garcia

Web Development Manager

Vanessa Kuykendall

Accounting Assistant


Our brand, campaign, web and multi-media work has garnered hundreds of industry awards at regional, national and international levels.

See our case studies
Showing the awards that MDR has received.

Culture that never quits

After decades of attracting top talent who are experts in their craft, you begin to realize you must be doing something right. We’ve created a culture that celebrates differences, encourages collaboration and thrives on delivering results. A culture that breeds success and an energy that bonds lasting relationships with our clients.

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