Amanda Retallack Wheeless, CPSM
Since 2022
Active
SMPS Austin member
AEC marketing professional
Amanda drives comprehensive marketing strategy and business development for Miller Gray LLC, a woman-owned civil engineering firm founded on deep professional relationships in the public and private sectors. As Director of Marketing and Business Development, she oversees brand positioning, client development, proposal management, and strategic communications for a certified WBE (Woman Business Enterprise), DBE (Disadvantaged Business Enterprise), and HUB (Historically Underutilized Business) firm serving Central Texas and throughout the Southwestern United States.
Her expertise spans civil engineering, infrastructure, and municipal services marketing with deep specialization in transportation design, water and wastewater engineering, stormwater management, site development, and community outreach. Amanda brings comprehensive knowledge of public sector procurement, having supported marketing initiatives for municipalities, county and state authorities, healthcare, hospitality, residential, commercial, and industrial development clients.
With over 15 years of AEC industry experience, Amanda has contributed to marketing excellence across multiple engineering and construction disciplines. Her proven track record includes supporting Miller Gray’s growth as a trusted engineering partner for multi-disciplinary projects, strengthening the firm’s woman-owned business positioning, and building authentic relationships across diverse market sectors throughout Texas.
Amanda’s expertise encompasses all stages of project marketing including feasibility studies, preliminary engineering, design, permitting, public bid assistance, and construction management support. Her strategic approach to business development emphasizes Miller Gray’s commitment to innovation, experience, and personalized client attention that sets the firm apart in competitive municipal and private sector markets.
Amanda demonstrates exceptional professional leadership through her CPSM certification achievement and active engagement in SMPS Austin, one of the fastest-growing chapters in the United States. Her involvement reflects deep commitment to advancing professional services marketing excellence throughout the dynamic Austin market, supporting a chapter that has become a model for growth and member engagement.
Beyond her professional marketing achievements, Amanda is a passionate advocate for reproductive health equity, serving on a board that provides grant funding to people in need of reproductive assistance. This philanthropic leadership demonstrates her commitment to supporting community health access and reflecting Miller Gray’s values of building stronger communities through both infrastructure development and social responsibility.
Amanda’s expertise in positioning woman-owned and certified minority businesses brings valuable perspective to Miller Gray’s marketing strategy. Her leadership supports the firm’s certifications as WBE, DBE, and HUB through the City of Austin and State of Texas, opening opportunities for diverse business participation in public infrastructure projects that strengthen Central Texas communities.
Her professional philosophy centers on connecting, collaborating, and giving back—values that align perfectly with Miller Gray’s mission-driven approach to civil engineering. As noted in her professional profile, these principles are “all part of our Mission Driven promise,” reflecting a commitment to community impact that extends beyond traditional engineering services.
Amanda’s career progression demonstrates sustained excellence in AEC marketing and business development, with particular strength in public sector relationship building. Her experience supporting complex infrastructure projects across transportation, water resources, and community development has established her as a trusted advisor for firms navigating the intersection of technical excellence and strategic market positioning.
Her work at Miller Gray includes developing marketing strategies that honor the firm’s commitment to innovation while maintaining the personalized attention and deep relationships that have defined the company since its founding. Amanda’s leadership has been integral to positioning Miller Gray as an accessible, responsive engineering partner known for exceptional client service.
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