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gcm-supply
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About Us

Our Story

In 2018, GCM Supply LLC began with a simple yet powerful mission: to bridge the gap between businesses and their true growth potential through strategic, data-driven advertising. What started as a small team of marketing enthusiasts working out of an Austin co-working space has evolved into a trusted partner for brands across North America and Europe—all while staying true to the principles that guided our founding.

Our journey began when our founders, a trio with backgrounds in digital marketing, data analytics, and business strategy, noticed a recurring problem: many businesses were investing heavily in advertising but seeing little return. They watched as companies wasted budgets on generic campaigns that failed to resonate with their target audiences, trapped by one-size-fits-all approaches and vague performance metrics.

“We believed there had to be a better way,” says Maria Rodriguez, our CEO. “Advertising shouldn’t be a guessing game. It should be a science—one that combines creativity with concrete data to drive real, measurable results.”

Armed with this belief, GCM Supply LLC was born. Our first project? A local e-commerce brand struggling to stand out in a crowded market. By focusing on hyper-targeted audience insights and iterative campaign tweaks, we helped them triple their conversion rate in just three months. That early win confirmed what we knew: when strategy meets empathy for both the brand and its customers, magic happens.

As word spread, we expanded our services—from search engine marketing to social media campaigns, content creation, and full omnichannel strategies—always with a focus on transparency and collaboration. By 2021, we’d outgrown our co-working space and moved into our current office in Austin’s tech district, bringing on specialists in platform-specific advertising (Google, Meta, TikTok) and data visualization to deepen our expertise.

Our Mission

At GCM Supply LLC, our mission is to empower businesses of all sizes to thrive in the digital landscape through advertising that’s both smart and human. We exist to:

 

  • Demystify digital marketing for our clients, turning complex data into clear, actionable strategies.
  • Deliver measurable growth by aligning our efforts with your business goals—whether that’s boosting sales, expanding reach, or building brand loyalty.
  • Foster long-term partnerships based on trust, transparency, and shared success.
  • Stay at the forefront of industry innovation, ensuring your campaigns leverage the latest tools and trends without losing sight of what makes your brand unique.

 

We believe advertising should never feel like a cost center—it should be an investment that grows with your business.

Why Choose Us

What sets GCM Supply LLC apart from other marketing agencies? Here are four reasons clients trust us with their growth:

 

  • Bespoke Strategies, Not Templates: We don’t recycle generic campaigns. Every strategy is built from scratch, tailored to your industry, audience, and goals. For example, we crafted a hyper-local Facebook campaign for a Texas-based café chain that increased foot traffic by 40% in six weeks—by focusing on neighborhood-specific promotions and user-generated content.
  • Data That Drives Decisions: Our team of analysts turns raw numbers into stories. We track what matters (conversions, ROI, customer lifetime value) and adjust campaigns in real time. A SaaS client saw their cost per acquisition drop by 28% after we identified and doubled down on high-performing keywords in their Google Ads.
  • Partners, Not Vendors: We become an extension of your team, attending your strategy meetings, learning your brand voice, and celebrating your wins. One e-commerce client told us, “It’s like having a marketing department without the overhead.”
  • Proven Results Across Industries: From B2B tech to DTC beauty, we’ve helped brands in 20+ industries scale. Our client portfolio includes startups that grew from $100K to $2M in revenue, and established brands that reconnected with their audience after years of stagnation.

Client Testimonials

Don’t just take our word for it—here’s what our clients say:

“Working with GCM Supply LLC transformed our business. We’d tried other agencies, but none took the time to understand our niche in sustainable fashion. Their Instagram strategy doubled our followers in three months, and their email campaigns boosted repeat purchases by 35%. They’re not just marketers, they’re true partners.”
Jamie Chen, Founder, EcoChic Apparel
“As a small software company, we were intimidated by digital advertising. GCM Supply LLC broke everything down for us, starting with a modest budget and scaling as we saw results. Their Google Ads campaign increased our demo sign-ups by 150%—and they still check in weekly to make sure we’re on track. Worth every penny.”
Marcus Taylor, CEO, TechFlow Solutions
“We’ve worked with GCM for two years, and they’ve consistently delivered. What impresses us most is their ability to adapt—when TikTok started driving sales for our skincare line, they shifted resources overnight to capitalize on the trend. Our revenue is up 220% since we started, and we’re expanding into new markets thanks to their strategies.”
Sofia Reyes, Marketing Director, Glow Beauty Co.