Best Shopify Plus Agency
Best Shopify Plus Agency
for High-Growth Ecommerce Brands
You’ve outgrown your platform. Your team is patching problems instead of driving growth. It’s time to work with the Shopify Plus agency that’s launched and scaled 1,000+ stores — with zero bad reviews, ever.
Trusted by 1,000+ Shopify Merchants
Rated by 1,000+ Shopify Merchants
Shopify Plus Expert Agency
Avg. Organic Traffic Increase
LA Lakers, Judith Leiber & More
A Shopify Plus Agency Built Around Your Growth
Three phases. Fixed-price contracts. Every deliverable documented.
Discovery & Strategy
We learn your business before we touch a line of code. Every engagement starts with an in-depth discovery session mapping your revenue goals, auditing your tech stack, and analyzing your customer journey. Stakeholder workshops, full technical and UX audit, competitive analysis, and a fixed-price proposal with clear milestones.
Build & Launch
Custom theme engineering. Bespoke app development. ERP integrations. Advanced checkout customization. Built for performance, not just aesthetics. Custom Shopify Plus theme (mobile-first), bespoke app & API integrations, advanced checkout & Shopify Scripts, and full QA, load testing, and phased launch. Every project ships with a 30-day post-launch warranty.
Scale & Grow
Launch is day one — not the finish line. Post-launch, we become your embedded growth team: running CRO experiments, executing AI SEO, expanding into new channels, and protecting your uptime 24/7. Monthly CRO audits & A/B testing, AI SEO, priority support, and proactive recommendations — not reactive fixes.
Real Shopify Stores. Real Results.
These aren’t projections — these are verified revenue and traffic results achieved for real Shopify merchants through our consulting programs.
What Our Clients Say
“I’ve been working with Cesar for several years. Blackbelt has been instrumental in growing our online business through their program that actually works.”
“Blackbelt Commerce is a great team to work with. They are extremely knowledgeable in terms of site design, functionality, and SEO.”
“Starting this project I had a vision and Blackbelt Commerce delivered beyond what I expected. I highly recommend them for any ecommerce strategy.”
What Happens When You Work with the Best Shopify Plus Agency
Real outcomes from real brands that trusted Blackbelt Commerce to scale their Shopify Plus stores. NYC-based. Shopify Plus Certified. 11+ years in business.
Shopify stores launched, migrated, and scaled by our certified team
Years as a premier Shopify Plus agency — experience that’s earned, not sold
Perfect rating on Google & Shopify. Zero bad reviews. Ever. In 11 years of business.
Everything You Need to Build, Launch, and Scale
When you hire Blackbelt Commerce, you get a full-service Shopify Plus agency that owns your growth from day one.
Shopify Plus Migration
From Magento, WooCommerce, BigCommerce, or any custom platform — zero revenue disruption, full data integrity.
Custom Development
Bespoke themes, custom apps, advanced API integrations, and Shopify Scripts — built from scratch, built to perform.
Conversion Rate Optimization
Heatmaps, A/B testing, UX redesigns, and checkout optimization. Average 38% lift in add-to-cart rates.
B2B Commerce
Custom wholesale portals, tiered pricing, net terms, multi-buyer account management — natively on Shopify Plus.
International Scaling
Multi-currency, multi-storefront, and headless architecture for brands ready to go global.
AI SEO
AI-powered SEO combining organic link building, technical SEO, and content marketing to drive compounding revenue.
Ongoing Support
Proactive maintenance, priority support, monthly performance audits, and continuous optimization — always improving.
Headless Commerce
Hydrogen/Oxygen implementations and custom PWA builds for maximum front-end performance and multichannel flexibility.
ERP, PIM & Integrations
Seamless connections to your fulfillment, CRM, ERP, and analytics stack — one source of truth for your entire operation.
Checkout Customization
Custom payment flows, subscriptions, post-purchase upsells, and enterprise checkout — exclusive to Shopify Plus.
Performance & Uptime
Load-tested for peak traffic. We’ve run $300K+/month stores with 75K+ sessions/month — zero downtime events.
Fixed-Price Contracts
No hourly billing surprises. Every project is scoped, documented, and priced up front. You always know what you’re getting.
Transparent Pricing. No Surprises. Ever.
The best Shopify Plus agency for growth doesn’t hide pricing behind a “contact us” wall. Here’s what real Shopify Plus investment looks like.
Growth
DTC brands migrating to Shopify Plus for the first time or launching a new store from scratch.
- Custom Shopify Plus theme (up to 15 pages)
- Up to 3 third-party app/API integrations
- Mobile-first, conversion-optimized design
- Basic checkout customization
- SEO foundations (technical + on-page)
- 30-day post-launch warranty
Scale
High-growth brands scaling past $1M ARR needing a full-service Shopify Plus migration agency and growth partner.
- Everything in Growth, plus:
- Full Shopify Plus migration from any platform
- Custom Shopify app development
- Advanced checkout & Shopify Scripts
- B2B wholesale portal or multi-storefront
- ERP / PIM / CRM integration
- CRO audit & A/B testing roadmap
- AI SEO kickoff + 3-month support retainer
Enterprise
Enterprise brands with complex tech stacks, international markets, high-volume traffic, or headless commerce requirements.
- Everything in Scale, plus:
- Headless commerce (Hydrogen/Oxygen)
- Multi-region, multi-currency, multi-language
- Custom PWA development
- Advanced B2B portal with custom pricing logic
- Full analytics stack (GA4, Segment, Klaviyo)
- Priority SLA — 4-hour response
- Quarterly business reviews & planning
Not sure which tier fits? Book a free 30-minute strategy call — no pitch deck, no pressure.
Hear It Directly From Our Clients
Judith Leiber’s executive team shares their experience working with Blackbelt Commerce.
“They developed a website for Judith Leiber that is beautiful and functional. They are extremely knowledgeable in terms of site design, functionality, and SEO. They guided us and educated us along the way. Blackbelt met all timelines and deadlines and kept within budget.”
Judith Leiber Couture — Luxury Fashion, Shopify Plus
Judith Leiber
“Blackbelt Commerce is a great team to work with. They developed a website for Judith Leiber that is beautiful and functional. They are extremely knowledgeable about Shopify and ecommerce best practices.”
What Our Clients Say
“I spoke directly with Cesar during the entire process. He was very responsive. I would highly recommend Blackbelt Commerce to anybody struggling with their online store.”
— D. Tuohy
“Over the past 15 years, Blackbelt Commerce is by far the best I’ve used. Cesar is willing to share his knowledge so that I can complete tasks on my own.”
— J. Granger
Everything You Want to Know Before Hiring a Shopify Plus Agency
What makes Blackbelt Commerce the best Shopify Plus agency?
Three things separate us: results, retention, and reviews. Results: $0 to $1M+ for Judith Leiber, 700% organic sales growth for Erica Wilson in 90 days, $500K/month for SilverLining Herbs. Retention: 95%+ of clients add an ongoing support retainer after launch — because we treat post-launch as a starting point, not a finish line. Reviews: Perfect 5-star rating on Google and the Shopify Partner Directory. Zero bad reviews. Ever. In 11+ years.
How much does a Shopify Plus build or migration cost?
Our Growth tier starts at $10,000–$25,000. Full-service migrations for established brands typically range $25,000–$45,000. Enterprise projects with headless architecture and custom development start at $45,000 and scale to $75,000+. We provide fixed-price contracts — no hourly billing surprises.
How long does a Shopify Plus build or migration take?
A standard migration with custom theme development typically takes 8–14 weeks. Complex builds with custom app development or ERP integrations range from 16–24 weeks. We use milestone-based Agile delivery — so you always know exactly where your project stands.
Can you migrate us from Magento, WooCommerce, or BigCommerce?
Yes. We’ve migrated brands from Magento 1 and 2, WooCommerce, BigCommerce, Volusion, and custom-built platforms. We handle all product data, customer records, order history, SEO URL redirects, and integration reconfigurations — zero revenue disruption at launch.
Do you offer CRO and SEO, or just development?
We’re a full-service Shopify Plus agency. CRO capabilities include heatmap analysis, A/B testing, UX redesigns, and checkout optimization. Our AI SEO program covers technical SEO, organic link building, and content marketing. Average CRO results: 38% lift in add-to-cart rate, 22% reduction in cart abandonment, 17% increase in average order value.
Do you work with B2B or wholesale brands?
Yes. We’ve built complex B2B portals on Shopify Plus with custom pricing tiers, net payment terms, multi-buyer account management, quote request flows, and wholesale catalog controls. Shopify Plus is the most capable B2B platform available — and we know how to unlock every feature.
What does ongoing support include?
Our retainers include a dedicated account manager, priority support (4-hour SLA for Enterprise), proactive maintenance, monthly performance audits, CRO testing roadmaps, and strategy sessions. We don’t wait for something to break — we stay ahead of it.
What is your guarantee?
Every project includes a 30-day post-launch warranty — if something breaks after launch due to our work, we fix it at no cost. All projects are on fixed-price contracts with itemized deliverables — no surprise invoices. We use milestone-based Agile delivery with sprint demos so you’re reviewing real work, not waiting on promises. And we’ve never received a bad review in 11+ years of business.
How do I get started?
Book a free 30-minute strategy call. We’ll review your current setup, understand your goals, and tell you exactly what we’d recommend — and what it costs. No pressure, no fluff. If we’re the right fit, we’ll have a proposal to you within 48 hours.
Ready to Work with the Best Shopify Plus Agency?
1,000+ stores launched. 11+ years. Zero bad reviews. A team that treats your revenue like their own. Your next revenue milestone is one conversation away.
Book Your Free Strategy Call Blackrose Finbitnex
