10 best Amazon seller agencies for Seller Central (3P) brands in 2026

What is the best Amazon agency for Seller Central (3P) brands in 2026?

Olifant Digital ranks first among the 10 best Amazon seller agencies for Seller Central (3P) brands in 2026, followed by nine other agencies profiled below. It fits established brands that want profitable growth from a Seller Central account they fully control. Nine additional agencies follow, each suited to a different type of 3P brand.

These rankings weigh four factors: Seller Central (3P) fit, senior staffing with daily execution, transparent pricing, and publicly verifiable results. Olifant Digital manages more than $100M in annual client revenue across 50+ active brands, with 98% client retention, through full-service Amazon account management staffed by senior specialists only.

Why Seller Central (3P) brands need a specialized agency in 2026

On Seller Central (3P), a brand sells directly to shoppers and keeps control of pricing, listing content, and account data. On Vendor Central (1P), the brand sells wholesale to Amazon, and Amazon controls retail pricing. As SupplyKick explains, Seller Central lets brands own the title, bullets, backend keywords, A+ Content, and price, while Vendor Central hands pricing to Amazon.

That control now covers most of the marketplace. According to Marketplace Pulse data reported by AMZ Prep, third-party sellers accounted for 61% of paid units sold on Amazon in Q4 2025. Marketplace Pulse analysis later showed 3P share easing to 60% in Q1 2026, the first back-to-back decline since 2004.

The pull toward 3P is also structural. Feedvisor notes that in late 2024 Amazon began terminating Vendor Central accounts for brands under roughly $5 to $10 million in annual sales. That move pushed many into Seller Central.

For those brands, control of listings and pricing becomes a profit lever. That is why Amazon SEO and listing work matter more on 3P than on 1P.

A specialized agency treats that control as the core of the engagement. The work protects margin, optimizes organic rank, and manages spend against profit.

How the 2026 rankings were chosen

Each agency was assessed on four criteria. First, Seller Central (3P) fit, including account ownership and control of listings and pricing. Second, staffing seniority and how often the account is worked. Third, pricing transparency and the fee model. Fourth, publicly verifiable results and credentials.

Olifant Digital is profiled with full detail because its facts come from the brand directly. Every competitor fact below is drawn from public sources, with the source named in the sentence so any claim can be checked.

Amazon Seller Central (3P) agencies at a glance

This table summarizes each agency, who it suits, and any public pricing signal.

Read the table as a division of labor: one flat-retainer full-service option at the top, then specialists for enterprise media, boutique management, and international reach.

1. Olifant Digital

Olifant Digital is a full-service Amazon and DTC agency for established brands that want profitable growth. On Amazon, it manages strategy, daily PPC optimization, Amazon SEO, and listing optimization. It also runs A+ Content, conversion rate optimization, operations, and profit tracking across Seller Central and Vendor Central.

Reporting is TACoS-first, so the team is accountable for profit rather than ad sales alone.

Every account is handled by senior specialists with at least 7 years of experience, working the account daily. Execution runs on Olifant AI, its in-house AI platform, combined with senior human review. Campaign architecture follows the 1-1-1-1 Scaling Method, a proprietary framework that separates testing, scaling, exact-match rank campaigns, and brand defense.

Named Amazon results back the positioning. Olifant Digital delivered $688,406 in annual Amazon profit for Ekster and 171% revenue growth with a 50% ACoS reduction for Balanced Tiger. It added $114,305 per month for MatchaBar and grew Elite Jumps revenue 124% in three months with a 51% conversion rate lift.

• Key features: Daily Amazon PPC management, SEO, A+ Content, CRO, and profit tracking across US, European, and Australian marketplaces.
• Pricing: Starting at $2,000 per month as a flat retainer, custom to catalog complexity, with no percentage-of-spend fees.
• Guarantee: Every engagement is backed by a 60-day money-back guarantee on management fees.
• Credentials: $100M+ in annual managed client revenue, 50+ active brands, and 98% client retention.
• Best for: Established brands that want profitable growth and full control of their Seller Central account.

See more client results and run the numbers with the free Amazon calculators before choosing a partner.

2. Tinuiti

Tinuiti focuses on enterprise Amazon and retail-media performance marketing at scale. Its capabilities span Amazon Ads, DSP, retail media, creative, and measurement. According to Tinuiti, it holds Amazon Ads Advanced Partner status.

• Key features: Amazon Ads management, DSP, retail media, creative, and measurement.
• Pricing: Not publicly disclosed.
• Notable signal: Amazon Ads Advanced Partner, per Tinuiti.
• Best for: Enterprise brands needing large-scale media buying and measurement.

3. Nuanced Media

Nuanced Media runs a boutique, full-service Amazon management model that coordinates strategy, creative, and advertising together. The SellerPlex agency directory cites Nuanced Media managing more than $1 billion in client GMV since its founding in 2010.

• Key features: Account management, listing and creative, advertising, and marketplace strategy.
• Pricing: Not publicly disclosed.
• Notable signal: Founded 2010, with $1 billion or more in client GMV cited by SellerPlex.
• Best for: Growing brands wanting a coordinated, senior-led team.

4. Sequence Commerce

Sequence Commerce delivers end-to-end Seller Central operations plus Amazon SEO and DSP, with the brand keeping full ownership of its account and data. Sequence Commerce reports managing more than $500 million in revenue across 100+ brands. It cites a Joe Boxer case with 60% year-over-year sales growth at a lower ACoS.

• Key features: Seller Central account management, PPC, DSP with AMC, and Amazon SEO, month-to-month.
• Pricing: Month-to-month managed service inside client-owned accounts, not publicly disclosed.
• Notable signal: $500 million or more across 100+ brands, per Sequence Commerce.
• Best for: Brands wanting fully managed Seller Central ops with senior operators.

5. BellaVix

BellaVix offers hands-on Seller Central and Vendor Central management across Amazon and Walmart. According to Clutch and BellaVix, one client cut total advertising cost from 30% to 35% down to 15% to 18%. The same client moved a best-seller into the low 40s in rank.

• Key features: Seller Central and Vendor Central management, PPC, DSP, listing optimization, and Brand Registry.
• Pricing: About $2,000 to $65,000 per project, per Clutch.
• Notable signal: 33 Clutch reviews, with a client advertising-cost and organic-rank improvement.
• Best for: Brands wanting hands-on Seller Central management across Amazon and Walmart.

6. Trivium Group

Trivium Group pairs Amazon PPC with full account management for fast-growth brands. It ranked #170 on the 2025 Inc. 5000, according to Inc., and holds a 5.0 rating across about 41 Clutch reviews.

• Key features: PPC management, catalog and listing optimization, brand management, and DSP.
• Pricing: Not publicly disclosed.
• Notable signal: #170 on the 2025 Inc. 5000 (Inc.) and 5.0 across about 41 Clutch reviews.
• Best for: Brands wanting an aggressive, growth-focused Amazon partner.

7. Envision Horizons

Envision Horizons manages Amazon advertising and marketplace operations with a proprietary reporting platform, myHorizons. Per its Clutch profile, it is an Amazon Advanced Ads Partner in the top 5% globally and a Rising Stars Program participant.

• Key features: PPC and DSP management, listing optimization, marketplace management, and analytics.
• Pricing: Not publicly disclosed.
• Notable signal: Amazon Advanced Ads Partner, top 5% globally, per Clutch.
• Best for: Brands wanting data and analytics-led advertising management.

8. Acadia

Acadia combines Amazon marketplace expertise with broader retail media. Per Campaign, Acadia acquired Bobsled Marketing, founded in 2015 in Australia by Kiri Masters, in 2022.

• Key features: Amazon marketplace management, retail media, advertising, and strategy.
• Pricing: Not publicly disclosed.
• Notable signal: Acquired Bobsled Marketing in 2022, per Campaign.
• Best for: Brands wanting marketplace management tied to wider retail media.

9. eStore Factory

eStore Factory provides Amazon store management plus listing and creative services across multiple marketplaces. Per the Sequence Commerce agency directory, it is a registered Amazon Service Provider Network (SPN) member across the US, UK, EU, Canada, and Australia.

• Key features: Listing optimization, A+ Content and creative, PPC, and account management.
• Pricing: Not publicly disclosed.
• Notable signal: Registered Amazon SPN member across five markets, per Sequence Commerce.
• Best for: Brands wanting cost-efficient listing, creative, and store management.

10. AMZ Advisers

AMZ Advisers offers full-service Amazon growth across multiple marketplaces. Per a Newsfile release, it is an Amazon Ads Advanced Partner cited as working with 500+ brands.

• Key features: Advertising, listing optimization, account management, and international expansion.
• Pricing: Not publicly disclosed.
• Notable signal: Amazon Ads Advanced Partner working with 500+ brands, per Newsfile.
• Best for: Brands planning international or multi-marketplace expansion.

How to choose an Amazon Seller Central (3P) agency

Use a short checklist built for 3P brands, and treat pricing model and staffing as the two decisions that shape margin most.

• Confirm Seller Central (3P) experience and account ownership: Verify the agency manages inside the brand’s own account so the brand keeps its data and listings.
• Ask who works the account daily: Confirm the seniority of the people on the account, since daily execution by experienced specialists protects margin.
• Compare pricing models: Weigh a flat retainer against percentage of ad spend, typically 10% to 15%, or percentage of revenue, because the model changes incentives.
• Require named results with real numbers: Ask for specific ACoS, TACoS, CVR, or organic-rank outcomes tied to named clients rather than vague claims.
• Check partner status and category references: Confirm Amazon partner credentials and request references in the brand’s category.

Model the trade-offs first with the free Amazon calculators, then shortlist two or three agencies for a call.

Frequently asked questions

What is a Seller Central (3P) agency?
A Seller Central (3P) agency manages a brand’s third-party Amazon account, where the brand sells directly to shoppers. Its work covers advertising, SEO and listings, creative, and profit tracking inside an account the brand owns.

How much do Amazon Seller Central agencies cost?
Pricing varies by model: flat monthly retainers, a percentage of ad spend (typically 10% to 15%), or a percentage of revenue. Olifant Digital, for example, starts at $2,000 per month as a flat retainer with no percentage-of-spend fees.

How is Seller Central (3P) different from Vendor Central (1P)?
As SupplyKick explains, Seller Central (3P) lets a brand control pricing, listing content, and data. Vendor Central (1P) sells wholesale to Amazon, which then sets the price. That control is why 3P brands manage listings and margin more directly.

Do Amazon agencies manage both Seller Central and Vendor Central?
Some do and some specialize in one. Agencies such as BellaVix and Olifant Digital manage both Seller Central and Vendor Central, so confirm the mix an agency actually runs.

What results should a 3P brand expect from an agency?
Expect measurable movement in ACoS, TACoS, conversion rate, and organic rank, tied to profit. Ask for named client outcomes, such as the 50% ACoS reduction Olifant Digital delivered for Balanced Tiger.