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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 Dallas Businesses
Sigma builds Shopify stores for Dallas’s enterprise retailers, fashion brands, industrial distributors, and healthcare companies across DFW. Custom Liquid development, Shopify Plus for multi-store and B2B operations, US payment integrations, platform migrations, and ongoing managed support—delivered by one certified engineering team with full accountability.
Our global delivery centers give you a structured engineering team, not a local freelancer. Every engagement is scoped, contracted, and priced before development begins. Your engineers hold active Shopify Foundations and Liquid Storefronts certifications and stay on the project through launch and beyond.
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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. End-to-End Ownership.
From your first design review to ongoing post-launch optimization, here’s what Sigma delivers for Dallas businesses.
Shopify Store Setup, Theme Development & UI Enhancements
Dallas shoppers are brand-conscious and comparison-driven. They shop across local boutiques and national retailers simultaneously, move fast, and make quick judgments about brand credibility based on the online experience. Sigma builds Shopify storefronts in custom Liquid that load fast, look exactly like your brand, and are structured to convert from the first session.
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Responsive Liquid themes built from your brand identity—not adapted from a shared template library -
Custom Shopify store setup for B2B and B2C, built around Dallas consumer behavior and US-native payment methods including Shop Pay, Afterpay, and Klarna -
SEO-clean, speed-optimized code that doesn’t generate technical debt for your marketing team to deal with later -
Mobile-first storefronts connected to your analytics and marketing tools before the store goes live
Shopify Plus, B2B & Customization Services
DFW has one of the most active wholesale and distribution economies in the country—from fashion distributors managing hundreds of retail accounts to industrial suppliers running tiered dealer pricing across the Midwest and South. Standard Shopify wasn’t designed for that operational complexity. Shopify Plus handles it. Sigma configures it properly for Dallas businesses where B2B is a serious revenue driver.
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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 retail running from one platform -
Workflow automation and backend integrations built to handle the order volumes Dallas’s distribution and manufacturing businesses generate -
Checkout.liquid customization for Plus stores—fewer steps and higher order completion rates
Shopify App Development Services
Dallas’s mix of enterprise retailers, scaling DTC brands, and industrial B2B businesses means highly specific operational requirements that the default app marketplace doesn’t address well. Sigma builds custom Shopify apps around the actual business logic yours runs on—not an app store approximation that creates workarounds down the line.
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Custom apps for B2B and B2C workflows that prepackaged solutions don’t handle reliably -
Apps integrated with Shopify Flow, webhooks, and metafields—part of the system, not bolted on as patches -
Performance-optimized code that adds no storefront latency or page-load overhead -
Embedded analytics and reporting so your Dallas team has real visibility inside Shopify admin
Shopify App Integration Services
Dallas businesses running Shopify disconnected from their ERP, 3PL, and CRM are creating manual reconciliation work at every order. At Dallas scale, that overhead compounds quickly. Sigma builds integrations that connect Shopify to your entire operation—so inventory, orders, and customer data stay accurate across every system 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 data accuracy without constant oversight -
Shopify analytics and conversion tracking configured before go-live so your data is actionable from day one
Shopify Checkout Customization & Optimization
Dallas shoppers have options and they know it. A checkout flow with unnecessary steps, missing payment methods, or slow load times sends buyers to a competitor before you’ve had a chance to convert them. Sigma fixes this at the Shopify Plus level, where the checkout is rebuilt around your buyers rather than patched at the theme layer.
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Shopify Plus checkout.liquid customization—Shop Pay, Afterpay, Klarna, Affirm, and BNPL flows built for how US buyers pay -
Store-wide speed optimization, not just checkout-page performance fixes -
Infrastructure improvements so high-traffic periods—Black Friday, Cyber Monday, holiday retail pushes, and Dallas Market Center sale weeks—don’t take the store down -
Funnel analytics and structured A/B testing so every optimization decision is data-driven
Shopify Migration Services
Most Dallas businesses that come to Sigma with a migration project share the same concern: they’ve built years of organic search performance and they can’t afford to drop it in a platform switch. That’s exactly the right priority. Sigma has run enough migrations to know where each one fails—and how to prevent all of those failure points 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 your organic search rankings hold through the transition -
Clean, verified transfer of every product, customer record, and order in your database -
Post-migration QA and monitoring—Sigma stays on until everything is confirmed working
Shopify Support & Maintenance Services
A well-launched store still needs ongoing attention. Platform updates create compatibility issues, apps change behavior, and traffic spikes reveal performance gaps that weren’t visible at lower volumes. Sigma’s post-launch support catches these before your Dallas customers encounter them.
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Proactive monitoring and real-time issue resolution—not a support inbox reviewed at the end of the day -
App and platform updates managed before they cause downstream problems -
Regular security audits and performance reviews aligned to your revenue and growth targets -
Ongoing CRO and feature development as your Dallas business scales and your store needs to do more
Industries
Shopify Stores for Dallas Businesses
Sigma has commerce delivery experience across the sectors that define Dallas 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.
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Theme Design & Customization
Custom or enhanced Shopify themes built for speed and conversion on every device. Design is approved before it goes to engineering.
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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 Dallas business scales.
Why Sigma
Why Dallas Businesses Choose Sigma for Shopify
Dallas 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.
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We build for revenue, not just for launch
Going live is the start of the real work. Sigma designs stores to convert traffic into customers and stays engaged to keep improving that 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 reason behind it – not just a technical preference.
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Fast stores. Fewer abandoned sessions.
Page speed and checkout friction are both revenue variables. Sigma builds Shopify stores that load fast, work across every device, and don’t put obstacles between a Dallas customer and a completed purchase.
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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 and Texas data privacy requirements – through development, staging, 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 Dallas 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 Dallas do?
More than most companies expect upfront. A Shopify development company builds stores, customizes Liquid themes, develops custom apps for workflows the app store doesn’t cover well, 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 that varies by project.
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 Dallas‘s enterprise retail and DFW’s distribution businesses?
Yes, particularly at the Shopify Plus tier. Enterprise retailers headquartered in DFW get multi-store management, advanced checkout customization, and Shopify Flow automation that connects to their existing ERP and logistics systems. Distribution and wholesale businesses get B2B portals with tiered pricing, buyer-specific catalogs, and PO-based ordering workflows. Dallas’s commercial scale is exactly what Shopify Plus was designed to handle.
How much does Shopify development cost in Dallas?
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 Dallas Shopify developer?
Dallas has capable local Shopify talent – that’s not in question. What most local freelancers and smaller agencies can’t offer 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 Dallas business needs.