Gran Comercio

Industries

A Mexico B2B niche — not a catalog of verticals

We work with operations that already sell to other businesses: account pricing, orders, ERP and logistics. A tight focus — distribution, manufacturing and CPG — instead of pretending to cover all of commerce.

Distribution & wholesale

Buying portals, price lists and account-based ordering for distributors and wholesalers.

Manufacturing

Technical catalogs, quotes and plant ERP integration — not a storefront for show.

CPG & B2B2C retail

When the manufacturer or brand also sells to the channel and the consumer. B2B leads; the storefront is not the product.

Services

eCommerce implementation in Mexico, end to end

We don't just ship a pretty site. We build the full B2B operation — design, integrations, migrations and maintenance — and keep it growing. More notes on the blog.

Custom design & themes

Stencil themes (BigCommerce) and Twig (Shopware); Next.js when the storefront on those platforms needs it. On-brand, fast and built to convert. We're BigCommerce, Shopware and Rezolve Partners.

Integrations & APIs

ERP, inventory, invoicing, payment gateways (Stripe, MercadoPago), shipping and real-time sync via REST/GraphQL.

B2B & wholesale

Price lists, customer groups, quotes, account-based ordering and purchasing portals for distributors and wholesalers — on BigCommerce and Shopware.

Migrations without losing sales

From Woo, Magento or legacy carts to BigCommerce or Shopware. Data, SEO and redirects handled so you keep your rankings.

Optimization & conversion

Speed, checkout, analytics (GA4/GTM) and experiments. Data-driven decisions to sell more with the same traffic.

Maintenance & support

Monthly plans: monitoring, improvements, new features and direct response. Your store isn't left alone after launch.

The team

Backed by two ex-BigCommerce, not by an agency learning on your project

Gran Comercio is run by a former Solutions Engineer and a former Account Director from BigCommerce. B2B eCommerce practitioners in Mexico: the mix of technical and business perspective changes how a store gets built — and how it grows.

The platform from the insideAPI limits, best practices and tricks that aren't in the public docs.

Technical + commercialArchitecture and implementation on one side; account strategy, business and retention on the other.

AI as part of the stackFaster implementation with artificial intelligence and automation, together with NodoLab.

Focused on MexicoTax, payments, invoicing and logistics context for this market. Boutique — not a pan-LATAM or US shop.

The team · Ex-BigCommerce

JP Guzmán Co-founder · CTO / infrastructure

Former BigCommerce Solutions Engineer. At Gran Comercio he leads architecture, integrations and infrastructure: the platform, the APIs, and keeping the B2B store in production. The technical side of a practitioner — not of an agency learning on the project.

Juan Manuel Enríquez Co-founder · Commercial & product

Former BigCommerce Account Director. At Gran Comercio he owns the commercial relationship and the product: scope, platform and what gets built for each B2B account. He turns the business into an implementation plan that can actually ship.

Between us we've been on all three sides of eCommerce: the vendor, the account and the implementation. Our zone is where B2B business meets code.

Partners BigCommerce Partner Shopware Partner Rezolve Partner

Capabilities Stencil · Twig Next.js AI / Automation Stripe · MercadoPago

Case Study

adrian.com.mx — streetwear on BigCommerce

adrian.com.mx

Fashion retail · BigCommerce

"Custom theme, real-time inventory sync and a store that holds up through drops without crashing."

adrian.com.mxStreetwear brand · Colima, Mexico

visit the store →

Custom theme

Stencil tailored to the brand

.NET sync

Real-time inventory via API

+10 widgets

custom functionality on the store

How we work

Migrations and launch, from idea to sale

Discovery

We understand your business, catalog and operation. We define scope and the right platform.

Design & build

Theme, product pages, checkout and integrations. Reviewable progress, not a black box.

Launch

Data migration, SEO, testing and a careful go-live. No lost sales or rankings.

Growth

Ongoing support, improvements and new features month over month. The store evolves with you.

FAQ

Questions about eCommerce implementation

Do you only work with BigCommerce? +

We're a boutique agency specialized in BigCommerce, Shopware and Rezolve — not every platform. We build and integrate B2B stores on BigCommerce and Shopware (and B2B2C when it applies); Rezolve is our conversational / agentic commerce partner. We add integrations and automation when the project needs them.

Which sales models do you cover? +

We implement B2B and B2B2C. B2B is the center: wholesale, distribution, account pricing and buying portals. B2B2C comes in when a manufacturer, CPG or retailer operates both sides. We do not implement B2C, D2C, B2E or C2C as an offering.

Do you build B2B / wholesale stores? +

Yes — that's the work. Per-customer price lists, groups, quotes, account-based ordering and purchasing portals for distributors. B2B isn't a side line; it's the product.

What happens after launch? +

We offer monthly maintenance plans: monitoring, improvements, new features and direct support. The store isn't abandoned — it keeps growing with your business.

Do you work with clients outside Mexico? +

No. We don't take work outside Mexico. We support B2B operations in the country — invoicing, payments, carriers and this market's context. We work in Spanish and English for Mexican companies; we are not a US or pan-LATAM agency.

How do we start? +

Message us on WhatsApp with a short description of your project. We schedule a discovery call, define scope and send you a clear proposal with timeline and pricing.

B2B eCommerce in Mexico, built by someone who was on the other side.

Sales models