6 Best eCommerce Advertising Agencies to Consider for Your Brand

More traffic won't fix a weak offer, tired creative or a landing page that leaks visitors. When an ecommerce brand hires an advertising agency, the real question is who will own those problems alongside the campaigns.

We compared six agencies on service scope, ecommerce fit and pricing clarity. Each one suits a different starting point, from connected acquisition work to diagnostics, forecasting, retail media and product-feed management. If you're still deciding whether outside help makes sense, it's worth understanding what a PPC agency typically handles before you request proposals.

Key Takeaways

• Our top pick connects offer development, creative, media buying and landing-page testing in one acquisition process.
• KlientBoost suits brands that want paid search, paid social and funnel testing under one roof.
• Disruptive Advertising offers a free ecommerce game plan and PPC audit as a diagnostic starting point.
• Common Thread Collective ties advertising decisions to a financial forecast.
• Tinuiti covers marketplaces and retail media, with a dedicated offer for growth-stage brands.
• SmartSites publishes a $2,500 monthly ad-spend minimum and confirms clients keep ownership of their ad accounts.

How We Picked These Agencies

We reviewed each agency's ecommerce, advertising and pricing pages in November 2026. We didn't hire or test these agencies, so the ranking reflects fit for a direct-to-consumer brand rather than measured campaign results.

Our criteria were ecommerce relevance, offer and creative development, landing-page testing, channel and catalog coverage, reporting, account ownership and fee clarity.

Comparison at a Glance

The 6 Best eCommerce Advertising Agencies

1. Intensify

Best for: Brands whose acquisition problems span the offer, the creative and the landing page.

Our top pick is a Los Angeles agency focused solely on new customer acquisition for ecommerce brands. It reports more than 10 years in business, over 100 clients and $50 million in ad spend managed.

Pros

• Offer and value-proposition development based on product, margin and competitor analysis
• Video and graphic ads built around current TikTok and Instagram trends
• New landing pages A/B tested against the original, then refined for revenue per session
• Day-to-day collaboration through email, Slack and calls

Cons

• No published management fee, so budgeting starts with a proposal
• Its acquisition focus won't suit brands looking for retention-only support

Why we picked it: We picked Intensify first because its four-step process starts with the offer, moves through a tested landing page and short-form creative, then keeps iterating. That gives brands one team accountable for the work around the campaign, not just the media buying.

Pricing: Fees are scoped after an inquiry, and the contact form asks for current monthly ad spend. Ask for offer work, creative, landing-page testing and media spend as separate line items.

2. KlientBoost

Best for: Brands that want paid media and conversion testing coordinated.

KlientBoost manages Google Ads, Microsoft Advertising and paid social, along with ecommerce Shopping, catalog and feed work. Its CRO service adds funnel testing and landing-page work.

Pros

• Paid search across Google and Microsoft
• Paid social alongside search
• Shopping, catalog and product-feed management
• Coordination between PPC, CRO and creative teams

Cons

• Exact fees require a proposal
• Serves several industries, so ecommerce references still matter

Why we picked it: KlientBoost suits brands where paid media and on-site testing need tighter coordination. Confirm who builds page variations and how often tests run.

Pricing: A free marketing plan produces three tailored pricing options rather than published monthly tiers.

3. Disruptive Advertising

Best for: Brands that want a diagnosis before choosing an execution partner.

Disruptive Advertising offers a complimentary ecommerce game plan and a PPC audit covering account structure, targeting and bidding. Its ecommerce services include paid search, paid social, Amazon, creative and lifecycle marketing.

Pros

• Free ecommerce game plan and PPC audit
• Broad service menu for follow-on work
• Planning tied to business goals
• DIY, training-supported and done-for-you routes

Cons

• Planning, training and management are separate offers
• Recurring management fees aren't published

Why we picked it: Disruptive Advertising gives brands a structured way to review an account before committing. Ask which route the proposal covers and what you can execute in-house.

Pricing: The game plan and audit are free, while ongoing management is quoted separately.

4. Common Thread Collective

Best for: Brands that want advertising decisions tied to a financial forecast.

Common Thread Collective's Prophit Engine pairs a named operator with specialist support, proprietary technology and daily execution. Its Statlas tool brings revenue, marketing and cost data together.

Pros

• A named Prophit Engineer responsible for forecast and execution
• Statlas reporting across revenue, marketing and costs
• A separate Prophit System planning offer with a 12-month forecast
• Month-to-month terms described in its own guide

Cons

• Deeper data and operating relationship than a single-channel brief
• Fee amounts aren't published

Why we picked it: Common Thread Collective fits brands that want marketing measured against profit targets. Clarify how forecast accountability works in practice.

Pricing: The agency describes a flat fee with compensation tied to contribution-margin targets. Ask how contribution margin is defined and measured.

5. Tinuiti

Best for: Brands selling across marketplaces, retail media and their own stores.

Tinuiti covers Amazon, retail media and retail operations through its Adaptive Commerce framework, which uses purchase behavior to guide planning and measurement. Its Foundation offer serves growth-stage brands.

Pros

• Amazon and retail media coverage
• Purchase-behavior data informing planning and measurement
• Foundation offer with first-party data, reporting and incrementality testing
• Bliss Point measurement technology

Cons

• Its breadth needs careful scoping for a narrow brief
• Fees aren't published

Why we picked it: Tinuiti suits brands that need commerce coverage beyond their own storefront. The Foundation offer means it isn't limited to enterprise budgets.

Pricing: Pricing comes through a scoped proposal. Ask whether you'd start with Foundation or broader commerce services.

6. SmartSites

Best for: Catalog-driven brands where product-feed work is central.

SmartSites manages Google Shopping, Performance Max, Amazon, Meta and Microsoft Shopping campaigns. It handles feed cleanup and margin-based product labeling, with experience across Shopify, WooCommerce, BigCommerce and Magento.

Pros

• Feed cleanup and margin-based labels
• Daily Client Hub access and monthly written reports
• Clients keep ownership of accounts, campaigns and assets
• Free setup

Cons

• The $2,500 monthly minimum covers ad spend only
• Landing pages and creative are quoted separately

Why we picked it: SmartSites is a strong fit for brands with large catalogs. Its clear terms on reporting and account ownership make proposals easier to compare.

Pricing: Expect a custom management fee plus at least $2,500 a month in ad spend. Setup is free.

How to Choose the Right eCommerce Advertising Agency

Start with your biggest constraint. If the offer or landing page is the weak point, prioritize agencies that own creative and testing. If the catalog is complex, prioritize feed management. If profitability is the concern, look for forecast-led models.

Send every shortlisted agency the same brief. Ask for management fees, ad spend, creative production and testing as separate figures, and confirm account ownership, reporting and exit terms in writing.

Conclusion

The right agency depends on where your growth is stuck. Our top pick leads for brands that want offers, creative, media buying and landing-page testing handled as one connected process.

KlientBoost suits coordinated paid media and testing, and Disruptive Advertising offers a diagnosis-first path. Common Thread Collective fits forecast-led brands, Tinuiti covers marketplaces and retail media and SmartSites handles feed-heavy catalogs with clear terms.

FAQ

How much does an ecommerce advertising agency cost?

Most agencies quote a custom management fee on top of your ad spend. Some publish spend minimums, so ask for fees and media budget as separate figures.

Should my agency handle landing pages as well as ads?

It often helps. When one team controls both the ad and the page it sends traffic to, it's easier to test offers and improve conversion rates.

Who should own the ad accounts?

Your brand should. Confirm in the contract that you keep the ad accounts, data and creative assets if the engagement ends.

Is a free audit the same as free management?

No. Free audits and game plans are diagnostic. Ongoing campaign management is a separate paid service.