This list is for Shopify and D2C brand owners, ecommerce managers and marketing leads who want one agency to run growth across SEO, paid social and search, email and conversion rate optimization (CRO). It covers firms in the US, the UK and India, from large integrated agencies to Shopify specialists, so you can compare like for like before you book a single call.
Use it as a shortlist, not a verdict. Read the "Best for" line first, check that the agency works with brands at your revenue stage, then open their site and case studies. Every fact below comes from the agency's own website, checked in October 2026, and links are provided so you can confirm it yourself.
Quick note before the list: this is our list, so yes, GrowwithBA sits at #1. We say why below, and you can weigh that yourself. The other nine are firms we would happily point a brand to, and nobody paid to be here.
How we chose
- Ecommerce focus: the agency markets services to online stores, Shopify brands or D2C companies, not only lead generation.
- Full-funnel coverage: at least two of SEO, paid media, email or lifecycle, and CRO offered in house.
- Published proof: named clients or case studies on the agency's own site.
- Active and current: recent content, current partner badges or 2025 to 2026 updates on the site.
- Geographic mix: a spread across the US, UK and India so brands in each market have local options.
- Transparency: clear information on who they work with, including revenue ranges or minimums where stated.
Quick comparison
| Rank | Company | Best for | HQ | Pricing info |
|---|---|---|---|---|
| 1 | GrowwithBA | Shopify and D2C brands that want SEO, paid ads, email and CRO run by one senior team | Nagpur, India and Dover, DE, USA | Published on site (from $1,500/mo for SEO or ads) |
| 2 | Power Digital | Mid-market and enterprise D2C brands wanting one integrated team | San Diego, CA, USA | Not published |
| 3 | Common Thread Collective | 7 to 9 figure DTC brands focused on profit and paid media | Costa Mesa, CA, USA | Not published |
| 4 | Disruptive Advertising | Brands that want an audit first and a 90-day performance guarantee | Lindon, UT, USA | Not published; free audit offered |
| 5 | Velstar | Established UK and US retailers on Shopify Plus | Liverpool, UK | Not published |
| 6 | Swanky | Shopify brands wanting build plus CRO, email and paid in one place | Exeter, UK | Not published |
| 7 | Social Beat | Indian D2C brands scaling performance and influencer marketing | Chennai, Bengaluru, Mumbai, Delhi (India) | Not published |
| 8 | Logical Position | US ecommerce stores where Google and Microsoft Ads drive sales | Lake Oswego, OR, USA | Not published |
| 9 | Eastside Co | Shopify-only brands that want one agency for store and marketing | London, UK | Not published |
| 10 | Infidigit | Ecommerce brands in India and the US that need SEO and AI search visibility | Mumbai, India | Not published |
The list
#1. GrowwithBA
GrowwithBA is the agency brand of Bridging Associates, with offices in Nagpur, India and Dover, Delaware, USA. Engagements are senior-led and start with a free growth audit, and the team ends engagements that are not moving revenue.
Best for: Shopify and D2C brands that want SEO, paid ads, email and CRO run by one senior team instead of four vendors.
What stands out:
- Full-funnel scope under one roof: Shopify growth, performance ads, email and retention and CRO and analytics.
- Published starting prices: SEO and performance ads from $1,500 a month, social and creative from $1,200 a month.
- Public case studies across food, gifting and multi-category ecommerce brands.
- More than 100 free marketing calculators and audits in its tools library.
Worth knowing: the team is India-led with a US entity, which suits brands comfortable with remote, time-zone-split collaboration.
#2. Power Digital
Power Digital describes itself as a tech-enabled growth marketing agency. It is headquartered in San Diego, with offices in New York, Atlanta and Medellín, Colombia.
Best for: mid-market and enterprise D2C brands that want SEO, paid social, email and CRO run by one integrated team.
What stands out:
- A broad service menu that includes CRO, SEO, paid social, TikTok, email and SMS, influencer, PR and marketing measurement with incrementality testing.
- Its own AI operating system, called Omega, which the agency says monitors every account and surfaces the next best action.
- Consumer brand logos on its homepage include Crocs, ASICS, Cymbiotika, Graza and Goldbelly, plus a testimonial from SOREL's DTC marketing lead.
Worth knowing: pricing is not published. The agency also serves B2B, healthcare and education clients, so ask to speak with its ecommerce team specifically.
#3. Common Thread Collective
Common Thread Collective (CTC) calls itself an "ecommerce profit partner" and is based in Costa Mesa, California. Its current offer is the Prophit Engine, which pairs software with a dedicated strategist who owns the forecast and execution.
Best for: 7 to 9 figure DTC brands that care about contribution margin, not only revenue, and spend heavily on Meta and Google.
What stands out:
- Service lines for Meta ad buying, Google ad buying, TikTok Shop, ad creative and incrementality testing.
- CTC reports that across its client set the Prophit Engine delivered +19% YoY revenue growth and +24% YoY contribution margin growth.
- Client logos include Liquid Death, Native, Theragun, OluKai and Girlfriend Collective.
- A large free education library, including the Ecommerce Playbook podcast.
Worth knowing: the contact page targets "7-9 figure ecommerce brands", so early-stage stores may not fit. SEO and email are not listed among its main service lines, and pricing is not published.
#4. Disruptive Advertising
Disruptive Advertising is a performance marketing agency based in Lindon, Utah. It offers a free marketing audit as the first step for new clients.
Best for: brands that want a clear audit of wasted spend, followed by managed paid search, paid social, email and CRO.
What stands out:
- A dedicated ecommerce marketing page covering PPC, paid social, SEO, Amazon, lifecycle marketing, CRO and creative.
- For qualifying brands, it guarantees measurable growth within 90 days or your money back, with no long-term contracts.
- The site states $450M+ in annual ad spend managed and a 4.8 average rating from 350+ Clutch reviews.
- A published ecommerce case study for Nani Swimwear reports a 510% revenue increase.
Worth knowing: the guarantee applies only to "qualifying brands", and the agency says it turns away more than 80% of companies that contact it. Pricing is not published.
#5. Velstar
Velstar is a full-service ecommerce agency headquartered in Liverpool, with hubs in Leeds, Edinburgh and Miami. It is a Shopify Platinum Partner and a Google Premier Partner for 2026.
Best for: established UK and US retailers on Shopify Plus that need build, performance marketing and CRO under one roof.
What stands out:
- Specialist divisions for CRO (WeTeachCRO), paid social (Yatter) and performance marketing, alongside Shopify engineering.
- Published case studies include Castore (128% revenue increase year on year) and Sculpted By Aimee (188% increase in sales).
- Its site lists Large eCommerce Agency of the Year 2024 at the UK Agency Awards.
- Integration experience with Klaviyo, Attentive, Dotdigital, Gorgias and Global-e.
Worth knowing: the agency says it works with "established businesses on complex eCommerce", so it is likely a heavier engagement than a small store needs. Pricing is not published.
#6. Swanky
Swanky is a Shopify Platinum Partner headquartered in Exeter, UK, with offices in Australia and France. It splits its work into "Launch" (builds and migrations) and "Growth" services.
Best for: Shopify brands that want their store, CRO, Klaviyo email, PPC and paid social handled by one agency.
What stands out:
- Growth services cover CRO, data and analytics, Klaviyo email marketing, PPC, paid social, SEO and loyalty programs.
- A published result for Shackleton: a 74% year-over-year revenue increase through CRO, PPC and email marketing.
- Named clients include HelloFresh, Wilkinson Sword and Symprove.
Worth knowing: Swanky is built around Shopify, so it is less of a fit if you run on another platform. Pricing is not published.
#7. Social Beat
Social Beat is an Indian digital agency founded in 2012 with a 300+ person team across Chennai, Bengaluru, Mumbai and Delhi. It was acquired by Cheil South West Asia in November 2025.
Best for: Indian D2C brands scaling performance marketing, influencer campaigns and SEO at the same time.
What stands out:
- A Premier Google Partner and Meta Business Partner that says it manages about 3% of India's digital spends.
- D2Scale, its D2C unit, offers end-to-end ecommerce solutions for D2C brands.
- Client logos include boAt, Kapiva, WOW Skin Science, Zivame and Sephora.
- It reports winning Agency of the Year at the ET DigiPlus Awards 2025.
Worth knowing: its focus is the Indian market. Pricing is not published, though its enquiry form asks for monthly budget in ranges starting from up to Rs. 10 lakh.
#8. Logical Position
Logical Position is a search-led digital agency headquartered in Lake Oswego, Oregon, with a second office in Palatine, Illinois. It is a Google Premier Partner for 2026.
Best for: US ecommerce stores where Google Shopping, search and Microsoft Ads drive most sales.
What stands out:
- Dedicated ecommerce PPC, plus SEO (including AI SEO), paid social, email, SMS, Amazon advertising and website development.
- The site lists Microsoft Global Channel Partner of the Year (2024) and states it has managed over $2.15 billion.
- Ecommerce clients shown include Steinway & Sons, Béaba, VoChill and See Kai Run.
Worth knowing: its roots are in paid search, so check the depth of its email and CRO teams for your needs. Pricing and minimums are not on the homepage.
#9. Eastside Co
Eastside Co is a London-based Shopify agency with offices in New York and Dubai. It says it was one of the first three UK agencies to become a Shopify Platinum Partner.
Best for: Shopify-only brands that want one partner for store design, development and ongoing marketing.
What stands out:
- Marketing services cover SEO, PPC, paid social, email marketing, organic social and CRO.
- The agency states it has built over 500 Shopify stores with a 50+ person in-house team.
- Portfolio clients include Gold Collagen, F1 Authentics and Tatti Lashes.
Worth knowing: it is a Shopify specialist, so it is not the right pick for other platforms. Pricing is not published; the contact form asks for your budget range.
#10. Infidigit
Infidigit is an SEO-led agency founded in 2017, with offices in Mumbai and New York and a team of 150+.
Best for: ecommerce brands in India and the US that need ecommerce SEO, CRO and visibility in AI search tools.
What stands out:
- Services include ecommerce SEO, CRO, LLM and AI SEO, app store optimization and content.
- Named clients include Myntra, Flipkart Seller Hub, Babyshop and Teapigs.
- The site reports 135+ case studies and 100+ industry awards.
Worth knowing: its homepage leads with SEO, not paid media or email, so many D2C brands will pair it with a separate ads and retention partner. Pricing is not published.
How to choose
Most ecommerce agencies look similar on a homepage. These questions separate them quickly:
- What revenue range do your current ecommerce clients sit in? An agency built for $50M brands may not give a $1M store real attention, and the reverse is also true.
- Who will actually work on my account, and how many other accounts do they run? Ask for names and roles, not just the pitch team.
- How do you measure success? Look for answers that cover contribution margin, new customer revenue and payback, not only platform ROAS.
- Which channels do you run in house, and which do you outsource? Full-funnel claims often hide subcontracted SEO or email. If retention matters, compare their answer with what a dedicated email and retention program should include.
- What happens in the first 30 to 90 days? A good agency starts with an audit of tracking, the store and ad accounts. Our ecommerce audit shows the kind of checklist to expect.
- Can I see a case study from a brand like mine? Same category, similar price point and the same platform. You can compare formats on our case studies page.
- What are the contract terms and notice period? Get minimum terms, fees and ad spend thresholds in writing before you sign.
FAQ
What does an ecommerce marketing agency do?
It plans and runs the channels that bring buyers to an online store and turn them into repeat customers. That usually means paid social and search ads, SEO, email and SMS, and CRO on product and checkout pages. Some, like Swanky, Velstar and Eastside Co, also build and maintain Shopify stores.
How much do ecommerce marketing agencies cost?
None of the nine agencies above publishes fixed prices. Most quote after a discovery call, based on your revenue, ad spend and the channels you need. Expect a monthly retainer, a percentage of ad spend, or both, and ask whether creative production is included.
Should a Shopify brand hire a Shopify specialist or a general growth agency?
If your store needs design or technical work as well as marketing, a Shopify partner saves handoffs. If your store is solid and you mainly need to scale ads and retention, a performance-led agency may go deeper on media. Our Shopify growth page explains how the two sides fit together.
Is it better to hire one full-funnel agency or several specialists?
One agency gives you a single owner for results and shared data across channels. Specialists can be stronger in one channel but need tighter coordination from your side. Many brands start with one partner for performance ads and add specialists as they grow.
Method note: all agency websites and linked pages were checked in October 2026. Facts are taken from each company's own site or the linked source. Spotted an error? Email partner@growwithba.com.