This guide is for decision-makers inside supplement brands who are actively evaluating SEO support.
1. It’s written for supplement brand founders who want organic growth without risking compliance, credibility, or long-term brand trust.
2. It’s for heads of growth or acquisition at supplement companies who need SEO to drive qualified demand not just traffic, in a highly competitive category.
3. And it’s for supplement companies preparing to scale, where SEO needs to be sustainable, defensible, and aligned with how health-conscious customers actually research products.
Non-Negotiables When Hiring SEO Agency
Deep Understanding of YMYL and Compliance Constraints
If an agency suggests aggressive benefit claims to “rank faster,” that’s a red flag. Any agency working in supplements must understand:
- FDA claim limitations (structure/function vs. disease claims)
- How Google evaluates health-related content
- The difference between educational content and promotional risk
Ingredient-Level SEO Experience
An agency must be able to map search intent at the ingredient and formulation level, not just product categories. Supplement buyers search by:
- Ingredient names
- Form (capsule, powder, gummy)
- Absorption method
- Use cases
Trust Signal Optimisation
Agencies unfamiliar with trust-first SEO often struggle in this space. SEO performance in supplements is tightly tied to trust.
- Clear sourcing and manufacturing information
- Third-party testing references
- Transparent brand and author signals
1. Growthack
Growthack specialises in building SEO systems that drive revenue by combining technical, content, and data-driven insights for health supplement brands across Europe and America. No hype. No handovers. Award-winning SEO that helps your brand stay discoverable, trusted, and ready for what’s next.
Website URL: growthack.io
Headquarters Location: Nottingham, England
Founded Year: 2020
Services Offered: SEO Strategy, Technical Audits, Website Migrations, Content Planning, Data & Analytics, International SEO, SEO Training
Team Size: 2-10
Reviews: 30 five-star on Google
2. Bird Marketing
Bird Marketing is an award-winning digital marketing agency known for delivering exceptional results through creative expertise and innovation. With a global team of specialists and a portfolio of success stories, they’ve built a reputation for exceeding expectations and adapting to the ever-changing digital landscape. Their approach focuses on crafting bespoke solutions that create lasting connections between brands and their audiences.
Website URL: bird.co.uk/seo/fitness-nutrition/
Headquarters Location: London, England
Founded Year: 2010
Services Offered: Technical SEO, Local SEO, E-commerce SEO, International SEO, SEO Audits, Link Building, Enterprise SEO
Team Size: 11-50 employees
Reviews: 106 five-star on Trustpilot
3. NutraMarketers
NutraMarketers is a specialised marketing agency dedicated exclusively to the supplement and functional food industry. The agency helps brands succeed from concept to cart, whether launching for the first time or scaling an existing product line.
Website URL: nutramarketers.com/dietary-supplement-seo/
Headquarters Location: Traverse City, Michigan
Founded Year: 2016
Services Offered: National SEO, Link Building, Content Marketing
Team Size: 11-50 employees
Reviews: N/A
4. Proactive SEO Solutions
Proactive SEO Solutions is a boutique digital marketing firm that delivers results-oriented strategies for local, national, and international clients. The team specialises in technical solutions while maintaining focus on the human element, building long-term partnerships based on mutual success and real value.
Website URL: proactiveseosolutions.com/nutritional-supplement-seo/
Headquarters Location: Long Beach, California
Founded Year: 2010
Services Offered: SEO
Team Size: 11-50 employees
Reviews: 22 five-star on Google
5. SEO.Co
For over a decade, SEO.co has provided expert services to Fortune 500 companies, venture-backed startups and local businesses. The team remains razor-focused on creating content that drives organic results online. Their digital strategists, writers, financiers, and experienced marketing professionals understand client businesses and possess the skills to scale companies’ exposure through strategic implementation.
Website URL: seo.co/supplements/
Headquarters Location: Seattle, Washington
Founded Year: 2010
Services Offered: White Label SEO, Link Building, On-Page SEO, SEO Audits, Local SEO
Team Size: 11-50 employees
Reviews: 10 five-star on Google
