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Shopify Plus, B2B & ERP ecommerce development

ECommerce Partners is an ecommerce development agency for B2B and DTC brands, certified on Shopify Plus and BigCommerce BigDev, based in Tenafly, New Jersey. Founded in 1998, we are a certified Shopify Plus Partner and a BigCommerce BigDev Certified Partner. We specialize in commerce that is operationally complex: Shopify Plus builds, B2B and wholesale implementations, platform migrations from Magento, Adobe Commerce, WooCommerce and legacy systems, custom app and API development, and ERP integrations with NetSuite, Microsoft Dynamics, SAP, Acumatica and AS400. Our clients are small to mid-market brands running B2B alongside direct-to-consumer, managing large or technical catalogs, or connecting commerce to an ERP. Recent work includes a five-storefront international Shopify Plus architecture for luxury skincare brand Chantecaille; a Magento to Shopify Plus migration of a 50,000+ SKU B2B catalog for QC Supply, with a custom B2B buyer portal and the Shopify side of its Dynamics NAV integration, taking Google PageSpeed from 33 to 77 on mobile and 36 to 94 on desktop; a replatform to BigCommerce Enterprise for fintech PayJoy with a custom financing checkout that runs 40% faster than the implementation it replaced; and eight years running three BigCommerce sites for Richloom, a fabric manufacturer founded in 1957, fed hourly from two ERP databases.

  • Min project size
    $5,000+
  • Hourly rate
    $100 - $149 / hr
  • Employees
    10 - 49
  • Locations
    New York, NY
  • Year founded
    Founded 1998

1 Locations

  • New York , NY

Select Focus Area
E-commerce Systems
Industries
Advertising & marketing
20%
Arts, entertainment & music
20%
Consumer products & services
20%
Hospitality & leisure
20%
eCommerce
20%
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Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate $100 - $149 /hr
Rating for cost 5 /5

Most Common Project Size

$10,000 - $49,999 based on 1 review
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

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Highly Rated Similar Providers

Overall Review Rating

5.0
  • Quality

    5.0 /5
  • Schedule

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  • Cost

    5.0 /5
  • Willing to Refer

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ECommerce Partners Reviews

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E-Commerce Development for eCommerce

  • E-Commerce Development Web Development
  • Confidential
  • Apr. - Oct. 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They understand our theme better than we do and they explain Shopify's limitations in plain terms."
Oct 19, 2026
Ecommerce director, Mixology clothing company
Elizabeth Cioffi
Verified
  • eCommerce
  • New York City, New York
  • 201-500 Employees
  • Online Review
  • Verified

ECommerce Partners provides Shopify development for a women's apparel retailer. They update the client's Shopify theme to support combined listings, build a checkout rule, and more.

E-Commerce Store Migration & Dev for Music Academy

  • E-Commerce Development Web Development
  • Big Commerce Shopify Website Migration
  • $10,000 to $49,999
  • Jan. - Apr. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Honestly, it’s hard to find a flaw—they nailed it!"

Apr 24, 2025
Operations, Barrington Music Academy
Anonymous
  • Education
  • Chicago, Illinois
  • 1-10 Employees
  • Online Review

ECommerce Partners migrated a music academy's store to Shopify, built a custom theme, and integrated their ERP and loyalty programs. The team also improved the client's site speed and rolled out features.

Showing 1-2 of 2 Reviews

Locations (1)

59 Franklin Street New York, NY, United States 10013

10 - 15

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Mixology Clothing Company

(1)
Mixology Clothing Company Logotype

Elizabeth Cioffi

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