Amazon Marketing Agency vs In-House: Which Drives Better Results?

If your brand is scaling on Amazon, the decision to outsource or manage marketing in-house is more critical than ever. While some brands prefer to retain control with an internal team, others see exponential growth by partnering with a specialized Amazon marketing agency.

But which approach actually delivers better results?

This post breaks down the pros and cons of both models—and helps you decide which is right for your brand in 2025.

What an Amazon Marketing Agency Brings to the Table

An Amazon marketing agency offers end-to-end services designed to boost visibility, sales, and profitability on Amazon. Services typically include:

• Amazon SEO and listing optimization
• Advertising (Amazon PPC, DSP, retargeting)
• A+ Content and Storefront design
• Catalog and inventory management
• Review generation and reputation management
• Competitive analysis and reporting

🔗 Learn more about Amazon SEO best practices and how agencies use them to improve rankings.

Advantages of Hiring an Amazon Marketing Agency

Platform Expertise

Agencies live and breathe Amazon. They track updates to the A10 algorithm, policy changes, and tools like Amazon Marketing Stream—ensuring your brand is both compliant and competitive.

Scalability and Speed

Need to optimize 100+ ASINs, expand to international marketplaces, or prepare for Prime Day? Agencies can ramp quickly without the hiring delays.

Advanced Toolsets

Agencies bring reporting dashboards, keyword research tools, ad automation platforms, and multichannel attribution—all without licensing headaches.

🔗 Tools like Helium 10 and Amazon Marketing Cloud are commonly leveraged by top agencies.

Pros of In-House Amazon Marketing Teams

Brand Alignment

Internal teams are deeply familiar with your voice, mission, and product roadmap—often resulting in tighter brand consistency.

Direct Oversight

Quick feedback loops between ops, creative, and marketing teams allow for faster decisions and campaign adjustments.

Potential Cost Control

If you already have experienced talent, in-house teams may be more cost-effective—especially for stable or niche catalogs.

Where In-House Teams Struggle

• Limited specialization (e.g., no Amazon DSP knowledge)
• Slower testing and iteration cycles
• Lack of external benchmarks and cross-industry insights
• Burnout from balancing too many hats

Best of Both Worlds: The Hybrid Model

For brands that want strategic ownership in-house but execution support, a hybrid model is ideal. Internal teams lead, while an Amazon marketing agency handles Amazon PPC, A+ content creation, or SEO.

Real-World Results with an Amazon Marketing Agency

One GoAmify client—a premium home goods brand—saw:

• +48% ROAS from refreshed ad segmentation
• 30% more conversions after A/B testing titles and bullet points
• 5x growth in organic rank for non-branded keywords within 3 months

These results stemmed from close agency-brand collaboration.

Should You Hire an Amazon Marketing Agency?

Final Thoughts

The right answer isn’t one-size-fits-all. But if you’re focused on faster growth, deeper insights, and cross-functional expertise, partnering with an Amazon marketing agency is often the smarter investment.

GoAmify helps brands win on Amazon through customized, data-backed strategies. Whether you’re optimizing for Prime Day or scaling globally, we act as your in-house performance partner.

👉 Talk to our team to build a smarter, faster Amazon growth plan.