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20+
Years delivering eCommerce
16
Countries served
400+
Engineers and specialists
ISO
27001 & 9001 Certified
What We Deliver
Certified Shopify Development for Houston Businesses
Sigma builds Shopify stores for Houston’s energy sector suppliers, fashion and beauty brands, healthcare companies, and food producers going direct. Custom Liquid themes, Shopify Plus for industrial B2B and procurement portals, integrations, migrations, and post-launch support—delivered by certified engineers from global delivery centers.
Every project is scoped and priced in writing before work starts. Your team holds active Shopify Foundations and Liquid Storefronts certifications. Sigma stays engaged after launch—this is a retainer relationship, not a project handoff.
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Full-stack delivery: store setup, theme, apps, integrations, Shopify Plus -
Dedicated teams and retainer support -
Transparent pricing agreed upfront
Our Stack
Shopify Technologies We Build With
Focused on Shopify-native tools. Nothing added for padding.
Shopify
Shopify Plus
Liquid
Storefront API
Admin API
Our Services
Everything Your Shopify Store Needs. One Team. No Handoffs.
From the first design conversation to post-launch performance work, here’s what Sigma actually delivers for Houston businesses.
Shopify Store Setup, Theme Development & UI Enhancements
Houston’s consumer market is large and culturally diverse. Shoppers here compare across a wide range of local and national brands, have high expectations for mobile performance, and make fast judgments about brand credibility based on the online experience. Sigma builds Shopify storefronts in custom Liquid that load fast, represent your brand faithfully, and are structured to convert from the first visit.
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Responsive Liquid themes built from your brand identity—not repurposed from a shared template library -
Custom Shopify store setup for B2B and B2C, built around Houston’s diverse consumer base and US-native payment methods including Shop Pay, Afterpay, and Klarna -
SEO-clean, speed-optimized code that doesn’t hand your marketing team a pile of technical debt -
Mobile-first storefronts connected to your analytics and marketing stack before the store launches
Shopify Plus, B2B & Customization Services
Houston’s industrial economy—energy, petrochemicals, construction, and manufacturing—generates a large B2B trade network with complex pricing, multi-tier buyer relationships, and procurement workflows that standard Shopify simply wasn’t built for. Shopify Plus was. Sigma configures it correctly for Houston businesses where B2B is the primary revenue model, not a secondary channel.
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B2B trade portals with custom logins, tiered pricing, role-based access, and catalog restrictions per buyer segment -
Shopify Plus enterprise setup for omnichannel operations—DTC, wholesale, and distribution working from one platform -
Workflow automation and backend integrations built to handle the order volumes Houston’s industrial and commercial businesses generate -
Checkout.liquid customization for Plus stores—fewer steps, higher order completion
Shopify App Development Services
Houston’s commercial diversity means highly specific operational requirements across sectors—oil and gas equipment suppliers with complex part number catalogs, medical device companies with regulatory display requirements, and food brands with perishability and fulfillment constraints. Sigma builds custom Shopify apps around the actual logic your business runs on, not a generic approximation.
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Custom apps for B2B and B2C workflows the default app store doesn’t cover reliably -
Apps integrated with Shopify Flow, webhooks, and metafields—built as part of the platform from the start -
Performance-optimized code that adds no storefront latency or page weight -
Embedded analytics and reporting so your team has real visibility inside Shopify admin
Shopify App Integration Services
For Houston businesses operating at any real scale, running Shopify disconnected from ERP, 3PL, and CRM systems creates manual work that compounds with every transaction. Sigma builds integrations that eliminate that overhead—connecting Shopify to your full operation so inventory, orders, and customer data stay accurate everywhere automatically.
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ERP, POS, CMS, CRM, and US payment gateway integrations including Stripe, Shop Pay, Klarna, and Affirm -
Real-time order, inventory, and customer data sync across every connected system—no end-of-day exports and no manual reconciliation -
Automated workflows that maintain accuracy without constant oversight -
Shopify analytics and conversion tracking configured before go-live so data is useful from day one
Shopify Checkout Customization & Optimization
Houston shoppers have plenty of options and make fast decisions. A checkout flow with the wrong payment methods, too many steps, or mobile performance issues loses buyers at the final moment. Sigma addresses this at the Shopify Plus level, where the checkout can be rebuilt properly rather than patched at the surface.
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Shopify Plus checkout.liquid customization—Shop Pay, Afterpay, Klarna, Affirm, and BNPL flows built for how US buyers actually pay -
Store-wide speed optimization, not just checkout-page fixes -
Infrastructure improvements so high-traffic periods—Black Friday, Cyber Monday, and Houston Livestock Show and Rodeo commercial season—don’t create downtime -
Funnel analytics and A/B testing so every optimization is data-driven
Shopify Migration Services
Houston businesses running on legacy platforms come to Sigma with one clear priority: they’ve built organic search rankings over years and can’t afford to lose them in a platform switch. That’s exactly the right concern to protect. Sigma has handled enough migrations to know every failure point and prevent them all before the project starts.
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Zero-downtime migrations from Magento, WooCommerce, BigCommerce, or older custom-built platforms -
Full URL redirect mapping so organic search rankings hold through the transition -
Clean, verified transfer of every product, customer record, and order in the database -
Post-migration QA and monitoring—Sigma stays engaged after go-live until everything checks out
Shopify Support & Maintenance Services
A well-launched store still needs ongoing attention. Platform updates introduce compatibility issues, apps change behavior, and traffic events reveal performance gaps that weren’t visible at lower volumes. Sigma’s post-launch support handles all of this before Houston customers notice anything is off.
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Proactive monitoring and real-time issue resolution—not a support queue reviewed between other priorities -
App and platform updates managed before they create downstream problems -
Regular security audits and performance reviews aligned to revenue targets -
Ongoing CRO and feature development as your Houston business grows
Industries
Shopify Stores for Houston Businesses
Sigma has commerce delivery experience across the sectors that define Houston market.
Government and Procurement
Compliant trade portals and digital services
Creative and DTC Brands
Fashion, homewares, and design-led retail
Food and Hospitality
Specialty food, restaurant merchandise, and D2C
Technology
Commerce embedded into digital products
Professional Services
B2B trade and service-based commerce
Health and Wellness
Supplements, skincare, and compliant retail
B2B and Wholesale
Trade portals and multi-tier pricing
Education and Publishing
Digital products and subscription models
How We Work
Our Shopify Development Process
No black boxes. No shifting estimates. Every Sigma project follows a six-stage delivery process that keeps SF clients informed and on schedule.
01
Discovery & Strategy
We start with your customers, your systems, and your commercial goals—before any code is written. The brief drives every decision.
02
Theme Design & Customization
Custom or enhanced Shopify themes built for speed and conversion on every device. Design is approved before it goes to engineering.
03
App Development & Integration
Custom apps, ERP connections, payment integrations—built and tested as a complete working system, not assembled in the last sprint.
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Quality Assurance & Testing
Full performance, security, cross-browser, and cross-device testing before launch. Your customers don’t find the bugs.
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Store Launch & Deployment
Go-live is a planned, monitored event. Sigma handles deployment and stays on top of the first 48 hours.
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Ongoing Maintenance & Optimization
Sigma doesn’t exit after launch. We stay on – monitoring, optimizing, and building as your Houston Area business scales.
Why Sigma
Why Houston Businesses Choose Sigma for Shopify
Houston has no shortage of Shopify developers. What it does have a shortage of is certified partners who deliver properly, stay accountable, and don’t disappear after handover.
01
We build for revenue, not just for launch
Going live is the beginning. Sigma designs stores to convert traffic into buyers and keeps improving performance after the store is running.
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A commerce partner, not a code vendor
Sigma aligns Shopify’s capabilities with how your business makes money. Every recommendation has a commercial rationale.
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Fast stores. Fewer abandoned sessions.
Page speed and checkout friction directly affect revenue. Sigma builds stores that load fast and don’t place unnecessary obstacles between a buyer and a completed order.
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Security and Compliance That Holds
ISO 27001:2022 certified. Every engagement includes security practices that protect customer data and support compliance with US data privacy requirement across development,and production.
Certifications
Certified. Not Just Claiming to Be.
In a city where people know what engineering credentials actually mean, we’d rather show them than talk about them. These are active certifications held by the engineers on your project.
Shopify Partner
Shopify Certified Foundations
Certified Liquid Storefronts
Trusted by Brands Across 16 Countries
From Houston businesses to global enterprise retailers, Sigma has delivered commerce outcomes that hold.
In Production
Shopify Work That Shipped
Real projects. Verified outcomes. Full case studies on Sigma’s website.
Australia – Beauty and Retail
Napoleon Perdis Left Behind a Legacy Platform and Moved to Shopify Plus
Napoleon Perdis is a well-known Australian cosmetics brand sold across New Zealand too. Sigma migrated them to Shopify Plus, improving store performance and cutting maintenance overhead.
Improved performance, reduced maintenance cost
USA – B2C / Subscription
Fire Department Coffee Needed Subscriptions, Wholesale, and Accessibility
This US brand had three firm requirements for a single Shopify build: subscriptions, wholesale, and WCAG accessibility. Sigma delivered all three without cutting corners.
Subscriptions, wholesale, and accessibility – one build
Romania – Multi-Store Plus
50+ Shopify Plus Stores, No Real-Time Stock Visibility – Sigma Solved Both
A global beauty brand running 50+ Shopify Plus stores with inventory errors. Sigma unified inventory management and automated workflows across every location.
100% real-time stock accuracy across 50+ locations
Frequently Asked Questions
What does a Shopify development company in Houston do?
More than most companies expect at first. A Shopify development company builds stores, customizes Liquid themes, develops custom apps for workflows the app store doesn’t address reliably, connects Shopify to ERP and CRM systems, configures Shopify Plus for enterprise requirements, handles platform migrations, and provides ongoing post-launch support. Sigma delivers all of this from structured delivery centers – not through a freelancer network.
What Shopify certifications does Sigma hold?
Sigma is an active Shopify Partner with certifications in Shopify Foundations and Certified Liquid Storefronts for Theme Developers – earned and maintained by the engineers who do the actual work. Beyond those: Adobe Solution Partner (Bronze), AWS Certified Partner, Microsoft Silver Partner, ISO 27001:2022, and ISO 9001:2015. All actively renewed.
Can Sigma migrate our existing store to Shopify?
Yes – and it’s a process Sigma has run many times with a clear methodology. We migrate from Magento, WooCommerce, BigCommerce, and older custom-built platforms to Shopify and Shopify Plus. Every URL redirect is mapped to protect your organic rankings. All product data, customer records, and order history come across completely. You don’t discover what’s missing after go-live.
Does Shopify work well for Houston’s energy, industrial, and healthcare sectors?
Yes, when configured correctly for each. Energy and industrial companies use Shopify Plus for B2B procurement portals with complex part number catalogs, tiered pricing for volume buyers, and PO-based ordering workflows. Healthcare and medical device companies need compliant checkout flows, regulatory display requirements, and secure customer data handling – all of which Sigma configures before launch. For DTC healthcare and wellness brands, Sigma adds age verification and compliance messaging where required by product category.
How much does Shopify development cost in Houston?
It depends on scope and integration requirements. A branded DTC storefront is a different project from a Shopify Plus deployment with industrial ERP integration and custom B2B portal development. Sigma scopes every project carefully, provides a clear estimate before work begins, and holds to it. No estimates that grow when you get the invoice.
Can Sigma build a Shopify store that handles both DTC and industrial B2B from the same platform?
Yes. Shopify Plus supports both channels from a single store – a full DTC storefront for direct customers and a B2B portal with custom logins, tiered pricing, catalog restrictions, and wholesale ordering workflows for industrial buyers and distributors. Sigma has built this for businesses running both channels simultaneously and knows the complexity involved before the build starts.
Can Sigma build a headless Shopify store?
Yes. Sigma builds headless storefronts on React and Next.js using the Shopify Storefront API – suited to New York tech companies embedding commerce into an existing product, or fashion and luxury brands that need full design control and maximum page performance. Being honest about it: headless adds real architectural complexity and ongoing maintenance overhead. Sigma will tell you whether it genuinely fits your situation before recommending it.
Why choose Sigma over a local Houston Shopify developer?
Houston has capable local Shopify talent – that’s fair to say. What most local freelancers and smaller agencies can’t match is a structured six-stage delivery process, dedicated QA, enterprise-grade security, and sustained post-launch support. Sigma is a certified Shopify Partner with 20+ years of commerce delivery and 400+ specialists across four delivery centers. You get accountability that continues well past the handover date.
Ready to Start?
Let’s Build a Shopify Store That Sells
Talk to a Sigma Shopify specialist. No pitch decks, no obligation—just a direct conversation about what your Houston business needs.