Skip to content
Conversion

Ecommerce Marketing Agency

The ecommerce marketing agency for brands on any platform

Full-funnel marketing for ecommerce brands past $1M in revenue — on Shopify, BigCommerce, WooCommerce, Magento, headless, or a custom build. One accountable team runs paid acquisition, retention, SEO, CRO, and marketplace expansion instead of five vendors pointing fingers at each other.

  • Platform-agnostic — Shopify, BigCommerce, WooCommerce, Magento, headless, or custom-built
  • One team spanning paid, retention, SEO, and CRO
  • Marketplace expansion built in — Amazon, Walmart, TikTok Shop
  • Pay-on-results, tied to incremental revenue
Conversion service illustration in brand blue and green

Conversion in numbers

150+

Ecommerce brands scaled

6+

Platforms we work across

+58%

Avg. revenue growth in 6 mo

$210M+

Client revenue driven

About Conversion

An ecommerce marketing agency that doesn't care what platform you're on

Founded 2018

8 years in ecommerce growth

Platform-Agnostic

Shopify, BigCommerce, Woo, Magento, headless

150+ Brands Scaled

Past $1M in revenue

San Francisco, USA

In-house team

Conversion is a full-funnel ecommerce marketing agency headquartered in San Francisco, working with DTC and B2B brands past $1M in revenue — on Shopify, BigCommerce, WooCommerce, Magento, headless storefronts, and fully custom builds. We built our name as a Shopify Plus Partner since 2019, but most of the brands we scale today aren't on Shopify at all.

That distinction matters. Most "ecommerce marketing agencies" are really Shopify agencies wearing a broader label — their playbooks, integrations, and reporting all assume one platform. We built a dedicated practice so brands on BigCommerce, WooCommerce, Magento, or a custom stack get the same senior strategists, the same creative pipeline, and the same pay-on-results structure.

One team runs paid acquisition, retention and lifecycle, SEO, CRO, and marketplace expansion together — not five vendors reporting five different numbers. Every channel ties back to one P&L, one weekly report, and one strategist who owns the outcome.

We treat marketplaces as a growth lever from day one, not a bolt-on. Amazon, Walmart, and TikTok Shop expansion get planned alongside your DTC roadmap so inventory, creative, and pricing stay aligned instead of fighting each other.

Why generic ecommerce marketing stalls

Five vendors, five priorities, no one owns the number

We've audited 100+ ecommerce marketing setups before taking them over. Brands past $1M in revenue hit the same three walls, regardless of platform.

Platform bias baked into the pitch

Most "ecommerce marketing agencies" are Shopify shops in disguise — their case studies, integrations, and playbooks assume one platform. If you're on BigCommerce, WooCommerce, Magento, or headless, you get a watered-down version of their best work.

A fragmented vendor stack

A paid media agency, an email freelancer, an SEO contractor, and a CRO consultant — each optimizing their own channel, none accountable for the number that matters. Weeks disappear in status meetings instead of shipping tests.

Marketplaces bolted on, not built in

Amazon, Walmart, and TikTok Shop get handed to a separate agency months after DTC is already scaling — creative, pricing, and inventory fall out of sync, and the new channel cannibalizes the old one instead of adding to it.

Running paid, email, SEO, and CRO through four different vendors?

Book a free 30-minute strategy call. We'll map your current stack, show you where the gaps are, and what one accountable team would change in the next 90 days.

30-minute call · No commitment · Custom quote in 48 hours

Ecommerce marketing services

Every channel that moves ecommerce revenue

Full-funnel coverage from acquisition to retention to marketplace expansion — built to work the same way no matter which platform your store runs on.

Paid Acquisition (Meta, Google, TikTok Shopping)

Meta Ads, Google Ads and Shopping, and TikTok Shopping campaigns built around blended MER and contribution margin — not platform-reported ROAS. We manage acquisition the same way regardless of which cart platform sits underneath it.

  • Meta Advantage+ & TikTok Shopping ads
  • Google Ads + Shopping + PMax
  • Blended MER + contribution margin tracking
  • Creative testing at 20–40 variants/week

Retention & Lifecycle Marketing

Email and SMS via Klaviyo or your platform's native ESP, engineered as a revenue channel, not a newsletter. Welcome, abandonment, post-purchase, win-back, and VIP flows tuned to typically carry 25–35% of total revenue.

  • Klaviyo flow build + audit
  • SMS (Postscript / Attentive)
  • Predictive segmentation + win-back
  • Subscription + loyalty strategy

Ecommerce SEO & Content

Technical SEO and content built for whatever platform you run — Shopify, BigCommerce, WooCommerce, Magento, or headless. Collection and category architecture, product schema, and a content engine that compounds organic traffic while paid scales.

  • Technical + on-page SEO audit
  • Category/collection architecture
  • Product schema + structured data
  • Content + programmatic SEO

Conversion Rate Optimization & Checkout Tuning

Heatmaps, session replay, and A/B testing across PDP, cart, and checkout — tuned to each platform's constraints, from Shopify's checkout extensibility to custom checkout flows on headless builds.

  • A/B testing (VWO / Convert / GrowthBook)
  • PDP + cart + checkout optimization
  • Post-purchase upsell + AOV
  • Platform-specific checkout tuning

Marketplace Expansion (Amazon, Walmart, TikTok Shop)

Amazon Seller/Vendor Central, Walmart Marketplace, and TikTok Shop, planned alongside your DTC roadmap from day one — shared creative, aligned pricing, and inventory sync so new channels add revenue instead of cannibalizing it.

  • Amazon Seller + Vendor Central management
  • Walmart Marketplace onboarding + ads
  • TikTok Shop setup + affiliate program
  • Cross-channel inventory + pricing sync

Creative Production & AI-Assisted UGC at Scale

A creative pipeline that ships 20–40 new ad variants a week — AI-assisted UGC, real creator sourcing, static, and motion — so paid media never runs out of fresh angles to test.

  • AI-assisted UGC at scale
  • Real creator sourcing + briefs
  • Static + motion + direct-response copy
  • Weekly creative testing cadence

Our 4-step growth process

From audit to compounding growth in 4–6 months

Conversion's four-stage growth process visualized in brand blue and green
01

Audit & strategy

Full-funnel audit across paid, retention, SEO, CRO, and any live marketplace channels. You get a written 30/60/90-day plan with a forecasted revenue target, independent of which platform you're on.

02

Foundation sprint

Tracking and attribution setup, Klaviyo/ESP flow audit, checkout and CRO baseline, SEO technical fixes, and marketplace account audits where applicable. Usually 2–3 weeks.

03

Scale & test

Aggressive creative testing on paid, expanded retention flows, SEO content production, and CRO experiments running in parallel. We report weekly against MER and contribution margin.

04

Compound & expand

We double down on what's working and layer in what isn't live yet — new paid channels, deeper retention segmentation, marketplace expansion. Most clients hit 1.5–3× revenue by month 6.

How we compare

Conversion vs the other options on your shortlist

A side-by-side look at what you actually get from an in-house team, a freelancer, a large agency, and Conversion.

FeatureIn-House TeamFreelancerLarge AgencyConversion
Platform-agnostic (Shopify, BigCommerce, Woo, Magento, headless)Locked to current stackUsually one platformOften Shopify-only✓
One team across paid, retention, SEO & CRO——Rarely — siloed departments✓
Marketplace expansion (Amazon, Walmart, TikTok Shop) built in—Add-on, extra costAdd-on, extra cost✓
Pay-on-results pricing———✓
Senior strategist on your accountDepends on hire✓Often junior AM✓
Weekly creative production pipeline—1–2 assets/weekVaries by retainer tier20–40 variants/week
Cross-channel MER & attribution reportingManual, if any—Siloed by department✓
Average ramp-up to full executionOngoing hiring cycle1–2 weeks6–8 weeks2–3 weeks
Fully loaded monthly cost (typical)$25K–$60K+ in salaries$3K–$8K$10K–$40K + ad spend %Scoped to spend + performance
Contract flexibilityN/A — employeesProject-based6–12 month lock-in commonMonth-to-month

Ecommerce case studies

Real brands. Real growth. Any platform.

BigCommerce — DTC Skincare

+64%

revenue growth in 5 months

From $340K to $560K monthly revenue without adding headcount

“We didn't have to hire a paid team, an email team, and an SEO agency separately. Conversion just ran it as one system, on our platform, without pushing us toward Shopify.”

Magento — Industrial B2B Supplier

+91%

qualified pipeline growth

A dated Magento store turned into a lead-gen engine

“Every agency before Conversion tried to sell us a replatform first. They built a real growth plan around the Magento store we already had, and pipeline nearly doubled in under a year.”

WooCommerce — Outdoor & Recreation

+38%

of revenue from marketplaces in year one

Amazon and Walmart added revenue instead of cannibalizing it

“We were terrified Amazon would eat our own site's sales. Conversion planned pricing and creative across all three channels together, and DTC grew right alongside marketplace.”

Whatever platform you're on — we've already scaled it

Talk to a senior strategist about your store. Quotes within 48 hours, a 90-day plan, and a forecasted revenue target on day one.

30-minute call · No commitment · Custom quote in 48 hours

What founders say

Trusted by 150+ ecommerce brands, on every platform

We'd hired a Shopify-first agency before and felt like an afterthought because we run on BigCommerce. Conversion never blinked — same senior team, same creative volume, same reporting.

Melissa R.

Founder & CEO · DTC Skincare Brand

Consolidating paid, email, SEO, and CRO under one team cut our vendor calls from six a week to one. Revenue didn't just grow — the whole operation got simpler.

Jordan P.

VP Ecommerce · Home Goods Retailer

Our Magento store was treated as a legacy problem by every agency we talked to. Conversion built a real growth plan around it instead of pushing us to replatform first.

Anil D.

Head of Digital · Industrial B2B Supplier

Amazon and Walmart used to compete with our own site for the same customer. Conversion planned all three channels together and our DTC revenue actually grew alongside marketplace.

Casey N.

Founder · Outdoor & Recreation Brand

The pay-on-results structure changed how we think about marketing spend. They only make more when we make more — that alignment shows up in how hard they push.

Priya S.

COO · Supplement Brand

We came from a large agency where our account got passed to a junior team after month two. Conversion's senior strategist has been on every call for a year straight.

Marcus T.

Director of Growth · Apparel & Footwear Brand

Why Conversion

We're not a Shopify agency in disguise. We built this for every platform.

Platform-agnostic by design

Shopify, BigCommerce, WooCommerce, Magento, headless, or fully custom — we built a dedicated practice so brands on any platform get the same senior strategists and creative pipeline as our Shopify Plus clients.

Pay on results

Most clients move into our pay-on-results structure after the first 90 days. We earn fees tied to incremental revenue — no flat retainers propping up an agency that isn't moving your number.

One team, one P&L

Paid media, retention, SEO, and CRO run through one strategist and one weekly report. No stitching together five vendors' conflicting dashboards to figure out what's actually working.

Marketplace expansion built in, not bolted on

Amazon, Walmart, and TikTok Shop get planned alongside your DTC roadmap from day one — shared creative and synced inventory instead of a separate agency cannibalizing your own site's traffic.

20–40 weekly creative variants

Most agencies ship two to four ads a week. Our AI-assisted UGC and creative pipeline ships 20–40 variants across static, motion, and UGC — the volume that keeps paid media scaling past the point where competitors plateau.

In-house, senior, no subcontracting

Media buyers, retention strategists, SEO specialists, and CRO analysts work in one room from our San Francisco HQ. No subcontracted offshore execution, no account handed to a junior team after the pitch.

What you walk away with

A complete growth system, not a single-channel retainer

Every Conversion engagement ships with these artifacts in your hands — yours to keep, on whatever platform you run.

Everything included in a Conversion engagement, laid out as tangible deliverables

Strategy

  • Full-funnel audit + 90-day plan
  • Platform-specific technical audit
  • Competitive teardown
  • Revenue forecast model

Execution

  • Paid acquisition management
  • Retention flow build (Klaviyo / ESP)
  • SEO technical + content roadmap
  • CRO experiment backlog

Creative

  • 20–40 weekly ad variants
  • AI-assisted UGC + real creator sourcing
  • Static + motion + direct-response copy
  • Landing page + PDP design

Reporting & Growth

  • Weekly MER + contribution margin report
  • Marketplace expansion roadmap
  • Attribution + analytics setup
  • Monthly strategy review

Ready to put paid, retention, SEO, and CRO under one team?

One call. One audit. A 90-day plan with a forecasted revenue target — no matter which platform you're on.

30-minute call · No commitment · Custom quote in 48 hours

Frequently asked

Ecommerce marketing agency questions

What does an ecommerce marketing agency do?
An ecommerce marketing agency runs the demand and revenue side of your store end-to-end: paid acquisition (Meta, Google, TikTok Shopping), retention and lifecycle marketing (email/SMS), SEO and content, conversion rate optimization, creative production, and increasingly marketplace channels like Amazon and Walmart. A platform-agnostic agency does this the same way whether you run Shopify, BigCommerce, WooCommerce, Magento, or a headless build — the strategy doesn't change just because the cart software does.
How much does an ecommerce marketing agency cost?
For brands past $1M in revenue, expect $6K–$30K/month depending on channel mix, ad spend, and whether marketplace expansion is included, plus a performance component for qualifying brands. Full-scope engagements spanning paid, retention, SEO, CRO, and marketplace typically land $15K–$60K/month. Conversion offers a pay-on-results structure tied to incremental revenue — ask for a scoped quote on your first call.
What's the minimum revenue to work with an ecommerce marketing agency?
Most capable agencies, including us, work best with brands doing $1M+ in trailing 12-month revenue. Below that, the fixed cost of a full team — strategist, media buyer, retention specialist, creative — outweighs the marginal lift, and we'll usually recommend a self-managed playbook or a narrower single-channel engagement instead.
What ecommerce platforms do you support besides Shopify?
BigCommerce, WooCommerce, Magento (1 and 2), headless builds (Next.js, Hydrogen, custom storefronts on a commerce API), and fully custom-coded stores. Our marketing strategy, reporting, and creative process are built to be platform-independent — the tactics adapt to each platform's checkout and catalog constraints, but the growth system stays the same.
How is this different from your Shopify Marketing Agency service?
Our Shopify Marketing Agency service is purpose-built for brands natively on Shopify or Shopify Plus, with deep integration into Shopify-specific tools like checkout extensibility and the Shopify app ecosystem. This ecommerce marketing agency service covers the same full-funnel scope — paid, retention, SEO, CRO, marketplace — for brands on BigCommerce, WooCommerce, Magento, headless, or any custom-built store. If you're on Shopify, start with the Shopify Marketing Agency page; everyone else starts here.
How long does it take to see revenue growth?
Paid acquisition typically shows signal in 14–30 days. Retention and lifecycle revenue starts compounding in 4–6 weeks as flows mature. CRO wins usually land in 30–60 days. SEO is a 4–6 month build regardless of platform. Most clients see a measurable revenue lift by month 2 and a compounding trend by month 4–6.
Do you handle marketplace channels like Amazon, Walmart, or TikTok Shop?
Yes — and we treat it as a growth lever from day one, not an afterthought handed to a separate agency later. We manage Amazon Seller and Vendor Central, Walmart Marketplace, and TikTok Shop alongside your DTC channels, with shared creative and synced pricing and inventory so the new channel adds revenue instead of cannibalizing your own site.
What's included in a typical engagement?
A written 90-day plan, a dedicated senior strategist, execution across the channels you engage us for — paid, retention, SEO, CRO, marketplace, creative — weekly reporting on MER and contribution margin, and a monthly strategy review. Everything ships as documentation and dashboards you own, not locked inside our internal tools.
Do you require a long-term contract?
No. We run month-to-month for most clients after an initial 90-day foundation period needed to build tracking, flows, and creative pipeline properly. Most clients move into our pay-on-results structure after that period, which further removes the incentive to lock you into a long contract.
How do you measure success across paid, retention, SEO, and CRO?
Blended MER (Marketing Efficiency Ratio), contribution margin, new-customer ROAS, and LTV:CAC — reported weekly across every channel in one dashboard, not siloed per platform. Per-channel metrics like email revenue share, organic sessions, and A/B test lift roll up into the same P&L view so you always know what's actually moving the number.
Can you take over from our existing agencies or freelancers without disruption?
Yes — most new engagements start as a takeover, not a greenfield build. We audit existing accounts (ad platforms, ESP, GA4/analytics, SEO), preserve what's working, and migrate access over a 1–2 week transition window with no gap in active campaigns or flows.
Do you work with regulated industries like healthcare or supplements?
Yes. Healthcare and supplement/nutraceutical ecommerce brands are a core part of our client base, alongside DTC and B2B. We build claims-safe ad creative, compliant email content, and platform-approved marketplace listings for regulated categories.
What makes your pay-on-results model different from a typical retainer?
A flat retainer pays us the same whether your revenue grows or not. Our pay-on-results structure ties our fee to incremental revenue we generate — so the incentive is aligned with your P&L from the first invoice, not just the pitch deck.

Related services

One partner for every ecommerce channel

Most Conversion clients run multiple workstreams with us — fewer handoffs, one P&L, one team accountable for the number.

Shopify Marketing Agency

The Shopify-specific version of this service — for brands built natively on Shopify or Shopify Plus.

Explore

Amazon Marketing Agency

Expand your ecommerce brand onto Amazon without fragmenting strategy, creative, or inventory signals.

Explore

SEO Agency

Technical and content SEO that compounds organic traffic for any ecommerce storefront.

Explore

Ready to grow?

Scale your ecommerce brand on your platform, your terms

Book a free 30-minute strategy call. We'll review your current marketing stack, whatever platform you're on, and show you the fastest path to consolidated, accountable growth.

No credit card · No commitment · Pay only on results