Lauren Rellinger, CPSM
Since 2021
Active
SMPS Pacific Northwest member
AEC marketing professional
Lauren leads comprehensive business development initiatives for MacKay Sposito, a multidisciplinary consulting firm with over 50 years of experience serving the Pacific Northwest and expanding throughout the Western United States. As Senior Business Development Coordinator, she develops strategic pursuit strategies, manages proposal development from inception to delivery, and coordinates cross-functional teams to secure new opportunities across the firm’s diverse service offerings.
Her expertise spans civil engineering, environmental permitting, landscape architecture, and public works projects serving municipal governments, public utilities, energy sector clients, and land development entities throughout Washington, Oregon, and the broader Western region. Lauren brings specialized knowledge in lead assessment, brand management, qualification package development, and strategic positioning for complex infrastructure pursuits. She excels at tailoring proposal content to client requirements while ensuring compelling narratives that showcase technical capabilities.
With a strong foundation in environmental studies and progressive experience across prominent Pacific Northwest engineering firms including PAE Engineers and Reyes Engineering, Lauren has built comprehensive expertise in AEC marketing and business development. Her background encompasses strategic communications, social media management, business development planning, and event coordination that strengthen both client engagement and internal team collaboration. Her understanding of environmental stewardship and sustainable development enhances her ability to position projects that balance community needs with environmental responsibility.
Lauren demonstrates exceptional professional leadership through her CPSM certification achievement and progressive career advancement within the Pacific Northwest AEC community. Her certification was publicly celebrated by MacKay Sposito leadership, recognizing her commitment to professional excellence and contribution to the firm’s business development capabilities.
As a business development professional at MacKay Sposito, Lauren contributes to a values-driven firm guided by honesty, dedication, and lasting relationships. Her work supports an organization experiencing significant expansion through strategic acquisitions including Olson Engineering (2022), Burrell Consulting Group, and most recently Engineering Analytics (2025), which extended the firm’s reach across the Southwest. This growth trajectory—expanding from Pacific Northwest roots to a regional platform serving clients throughout the Western United States—requires sophisticated marketing integration and strategic positioning expertise.
Lauren’s career progression demonstrates sustained commitment to professional growth, advancing from Marketing Coordinator roles to Senior Business Development Coordinator responsibilities. Her early-career foundation at Reyes Engineering, where she managed company brand and led business development efforts, established strong capabilities that she further developed through diverse roles at PAE Engineers, including business development planning, reporting, content development, and quality control for technical presentations.
Her Bachelor of Arts in Environmental Studies from The Evergreen State College provides unique perspective on sustainable development and environmental stewardship, enhancing her ability to position projects that demonstrate MacKay Sposito’s commitment to balancing development with environmental responsibility—particularly relevant as the firm, together with its Riparia Environmental subsidiary, delivers comprehensive services from design through environmental compliance.
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