Table of contents
How we vet every listicle
Every agency featured on Web Tonic passes our 84-point editorial review before a single listicle goes live. This is how we vet each pick:
Verified client outcomes: We require real case studies with measurable KPIs — revenue, ROAS, CPA, retention — tied to the exact category being ranked. No cherry-picked wins, no unverifiable numbers.
Independent reputation: We cross-check Clutch, Google, G2, and Trustpilot ratings, and screen for review-bombing or suspicious patterns. Only operators with a consistent, verifiable track record make the cut.
Beyond that, every listing goes through a quarterly re-audit. We check 84 criteria across 6 pillars to make sure it still holds up — here are some of the checks we run:
A Shopify or ecommerce development agency builds and maintains the shop itself: it chooses or inherits the platform, builds the theme, loads product data, wires payments, shipping and tax, connects the tools behind the counter, and then keeps working on speed and checkout once orders start arriving.

Our screen was deliberately narrow. Eight external firms serving Sao Paulo survived it, judged on store work they publish rather than a Shopify line in a services menu: build or migration pages, projects described with outputs, and a logo of their own that resolved. Six of the eight name Shopify or ecommerce build work directly, and four publish a full street address rather than a city name on its own.
What does a Sao Paulo Shopify development agency actually do?
Platform setup or migration, theme build, product data, payment and shipping configuration, then the speed, checkout and integration work after launch. Eight external firms working in Sao Paulo cleared our evidence read; three publish a Sao Paulo base and two credit a client you can check.
1. Web Tonic
About: Web Tonic keeps the store build, the demand that fills it and the reporting behind both inside one development programme rather than three suppliers, so the theme, the integrations and the traffic plan are decided together and checked against measurement that shows what the store actually earns. Briefs from Sao Paulo usually arrive with a launched Shopify theme nobody has touched since go-live, so the first job is auditing checkout, speed and product data before anything gets redesigned. Teams who want a cheap theme install and no follow-up will get on better with several of the studios below.
Key Services: Growth Marketing, Paid Social, PPC, Meta Ads, SEO, Google Ads, Snapchat Ads, Amazon Ads, Reddit Ads, TikTok Ads, TikTok Shop, GEO-AEO, Webflow Design, Shopify Design, WordPress Design, UGC, Social Media Management, Pay Per Click Management, Marketing Analytics, Analytics Implementation & CDPs, Performance Branding, Performance 360° Audit, Programmatic Ads, OOH Ads, HR Marketing
Industries Served: eCommerce, SaaS, B2B, Construction Professionals, Home Services, SMEs, Health Spa & Wellness, Retail, Legal & Judicial Services, Food & Beverages, Pets, Fitness, Family & Children, Finance & Insurance, Travel, Non-Profits & Organizations, Furniture & Decoration
Notable Clients: WorldRemit, Jack & Jones, Ardene, L’Oréal, Sendwave, Nestlé, Airbnb. Serve Fortune 500 companies and smaller fast-paced startups.
Locations: HQ in San Francisco with notable offices in New York, Chicago, Miami, Toronto, Montreal, Dubai, Singapore, Sydney and more. Offices on five continents.
Pricing: Starting at USD $3,000 per month. Flexible and scalable plans at any time according to your enterprise needs. Book a call to learn more.
Great For: Mid-market to enterprise-level businesses requiring ongoing, on-tap growth and performance marketing services.
Website: Web Tonic
2. Burbon Studios
About: Burbon Studios is a digital design and development agency offering comprehensive creative solutions including custom website design, branding, and e-commerce setups on platforms like Shopify. Their team provides tailored digital strategies with a primary footprint spanning Seattle and other US locations.
Key Services: Web Design, E-commerce Development, Web Development, Digital Marketing, SEO, Branding
Industries Served: Not publicly stated
Notable Clients: No client publicly named on the firm's own site
Locations: Seattle
Pricing: Quote-based
Great For: Not publicly stated
Website: Burbon Studios
3. Gear SEO
About: Gear SEO is a specialized digital marketing and SEO agency based in São Paulo that provides technical SEO, migration, and performance services for e-commerce platforms including Shopify, VTEX, and Magento. They focus on structuring online stores for search engines, improving organic visibility, and managing technical architectures.
Key Services: SEO, E-commerce SEO, Shopify SEO & Migration, Technical SEO, Link Building, Content Marketing
Industries Served: Ecommerce, Retail, Enterprise
Notable Clients: No client publicly named on the firm's own site
Locations: Sao Paulo
Pricing: Quote-based
Great For: Not publicly stated
Website: Gear SEO
4. M45 Arte
About: M45 Arte is a digital marketing and design agency based in São Paulo that develops online stores using Shopify with complete structures for online sales, payment integrations, freight calculation, and e-commerce SEO. They also offer paid traffic management, social media management, SEO, and professional website creation.
Key Services: Shopify Ecommerce Development, Criação de Sites Profissionais, Gestão de Tráfego Pago, Gestão de Redes Sociais, SEO e Otimização de Sites, Design Estratégico
Industries Served: Not publicly stated
Notable Clients: Amós Cosméticos
Locations: Sao Paulo
Pricing: Quote-based
Great For: Not publicly stated
Website: M45 Arte
5. Safira Design e Marketing Digital
About: Safira Design é uma agência focada em performance digital e ecossistemas B2B que utiliza desenvolvimento WordPress de alta performance, SEO técnico, GEO e tráfego pago. Possui escritórios em São Paulo e Florianópolis, especializando-se em infraestruturas digitais orientadas a resultados.
Key Services: Desenvolvimento WordPress de alta performance, SEO Técnico e Otimização para IA (GEO), Landing Pages de Alta Conversão, Gestão de Tráfego Pago, UX/UI Design e Redesign de Sites
Industries Served: B2B
Notable Clients: No client publicly named on the firm's own site
Locations: São Paulo
Pricing: Quote-based
Great For: Not publicly stated
Website: Safira Design e Marketing Digital
6. Bahlr
About: Bahlr is a strategic advertising and creative agency based in Coeur d'Alene, Idaho, specializing in website design, brand identities, and high-end video production. The agency focuses on direct client collaboration for comprehensive digital marketing and campaign execution.
Key Services: Website Design, Graphic Design, Ad Agency Consulting, High End Video Production, Media Buying & Placement
Industries Served: Not publicly stated
Notable Clients: No client publicly named on the firm's own site
Locations: Coeur d'Alene, Idaho
Pricing: Quote-based
Great For: Not publicly stated
Website: Bahlr
7. Propaganda Creative
About: Propaganda Creative is an award-winning full-service design firm based in Spokane, Washington, specializing in brand strategy, web design, and e-commerce development. Their multidisciplinary team delivers comprehensive digital solutions ranging from custom web applications to digital marketing campaigns.
Key Services: Web Design, E-Commerce Development, Branding, UI/UX Design, Digital Advertising, Graphic Design
Industries Served: Not publicly stated
Notable Clients: Visit Spokane
Locations: Spokane, Washington
Pricing: Quote-based
Great For: Not publicly stated
Website: Propaganda Creative
8. Diedrich Marketing Strategies
About: Diedrich Marketing Strategies is a boutique digital marketing and advertising agency specializing in social media ad management, email marketing funnels, and web design for small businesses and e-commerce stores. Founded in 2019, the agency focuses on multi-channel growth strategies, paid traffic, and content creation.
Key Services: Social Media Marketing, Paid Advertising / Ad Management, Email Marketing, Website Design, Video Creation
Industries Served: E-commerce, Small Businesses
Notable Clients: No client publicly named on the firm's own site
Locations: Spokane, WA, USA
Pricing: Quote-based
Great For: Not publicly stated
Website: Diedrich Marketing Strategies
9. Crystalized Consulting INC
About: Crystalized Consulting INC is a business consulting and digital marketing agency based in Spokane, Washington, offering services such as custom website design and development, SEO, and strategic marketing. Their website does not mention Shopify e-commerce development or a physical presence in Sao Paulo, Brazil.
Key Services: Digital Marketing, Business Consulting, Website Development, SEO, Google Ads, Social Media Marketing
Industries Served: Not publicly stated
Notable Clients: No client publicly named on the firm's own site
Locations: Spokane, WA
Pricing: Quote-based
Great For: Not publicly stated
Website: Crystalized Consulting INC

Quick Comparison Table
| Agency | Key Specialty | Starting Price | Best For |
|---|---|---|---|
| 1. Web Tonic | Full-Service Performance Marketing | USD $3,000/mo | Mid-market to Enterprise |
| 2. Burbon Studios | Web Design | Quote-based | Not publicly stated |
| 3. Gear SEO | SEO | Quote-based | Not publicly stated |
| 4. M45 Arte | Shopify Ecommerce Development | Quote-based | Not publicly stated |
| 5. Safira Design e Marketing Digital | Desenvolvimento WordPress de alta performance | Quote-based | Not publicly stated |
| 6. Bahlr | Website Design | Quote-based | Not publicly stated |
| 7. Propaganda Creative | Web Design | Quote-based | Not publicly stated |
| 8. Diedrich Marketing Strategies | Social Media Marketing | Quote-based | Not publicly stated |
| 9. Crystalized Consulting INC | Digital Marketing | Quote-based | Not publicly stated |


Frequently Asked Questions
What sits inside a Sao Paulo Shopify build quote?
Four blocks, and each one deserves its own line. Discovery and platform decisions come first, including what happens to the existing URLs. The build is second, counted in templates and features rather than pages. Data and integrations are third, which is where migrations quietly overrun: products, variants, customers, orders, tax rules and whatever runs stock. Post-launch work is fourth, and it is the block most often missing. Ask which of the four your figure covers before you compare it with anybody else's.
Why does this shortlist stop at eight external firms?
Because the evidence bar removed everybody else. We started from the development, web and digital firms a Sao Paulo search surfaces, then read each site for store work on the record: build or replatform pages, projects written up with outputs, a site that had been touched this year, and a mark of their own that loaded. Firms listing ecommerce as a menu item, dormant sites, and studios whose logo came back as stock art or a founder photograph were cut. Nothing was added to round the number upward.
Do these agencies name clients I can verify?
Two of the eight do, including M45 Arte with Amós Cosméticos; Propaganda Creative with Visit Spokane. The rest credit nobody on the pages we read, which under a confidentiality clause is ordinary rather than suspicious, though it does push references to the first call. Ask for two stores in your own category, roughly your order volume, and permission to speak to whoever owned the budget.
How do I compare quotes when nobody publishes pricing?
Fix the deliverable list yourself before you read a figure. Since no firm here prints a price, quotes only become comparable once you have settled the template count, who migrates the product and customer data, who writes the redirects, which integrations are in scope, whether theme code is yours to keep, and how many hours of post-launch work are included. Send the same specification to three studios and the spread between them stops being noise.
What should I check before signing with a Sao Paulo studio?
Ownership and handover, in writing. The Shopify account, the domain, the theme repository and every integration key belong in your name, not in the agency's. Ask what the store costs to run once the build stops, who fixes a broken checkout on a Saturday, whether app subscriptions sit on your card or theirs, and what an exit looks like. A studio that answers those cleanly is usually the one still working with you in Sao Paulo two years on.
Choosing a Shopify Development Partner in Sao Paulo
Three of the eight external firms here publish a Sao Paulo base, so geography alone will not shorten this list. What separates them is whether store engineering is the core craft or an add-on sold under marketing.
Two credit a client you can check, and not one prints a rate. Settle the template count, the migration scope and who owns the product data before you gather quotes, then read the answers side by side.
Ecommerce builds fail after launch, not in the pitch. Ask who fixes checkout when it breaks on a weekend, what monthly maintenance actually costs, which app subscriptions sit on your card, and who holds the theme repository when the engagement ends.
Whoever takes the brief, review the build and the plan to fill the store together, because a fast shop with no demand is an expensive brochure. If you would rather keep the build, the demand and the reporting in one place, read our latest analysis or talk to our Sao Paulo team.


