Why we are BigCommerce experts?

Calashock has been a BigCommerce partner since 2010 and is one of the few agencies to specialise exclusively in BigCommerce. We've built strong relationships with colleagues at BigCommerce and gained unrivalled knowledge and expertise of the platform, which allows us to develop websites better, and faster and make full use of the features, functionality and OpenSaaS framework BigCommerce provides.

12+ years experience

One of the most experienced BigCommerce agencies in the UK.


EMEA B2B Excellence Agency 2021 EMEA Headless Agency 2020

BigCommerce Elite Agency Partner London UK

BigCommerce Certified

One of the few Elite BigCommerce partners in Europe

What BigCommerce says

“We have long trusted Calashock to provide our merchants with beautiful, functional site experiences that build trust and loyalty with their customer base, and are grateful to partner with such a well-respected agency team”.

Jim Herbert
EMEA VP, BigCommerce

What are our clients saying?

“Calashock comes highly recommended by me because they are quick to respond and have outstanding technical expertise with BigCommerce”

Co-Founder, Managing Director Shopfitting Warehouse

“Calashock was a pleasure to deal with; they are extremely professional and knowledgeable about the Bigcommerce platform”

Janet Usken
Marketing Manager Podbike

Whether you're just getting started in online retail or ready to take your ecommerce business to the next level, we can help.

Why choose BigCommerce?

Drive more traffic to your ecommerce website.

With BigCommerce, you'll have access to more built-in capabilities that will help you attract more customers and increase your revenue. 

  • Boost SEO strategies with customisable URLs and robot.txt access
  • Plug-in POS integrations to leading providers
  • Sell more with channel integrations like Instagram and Facebook

Increase your sales conversion rate.

With the support of features designed to provide shoppers with a smooth experience that converts shoppers into buyers, BigCommerce merchants convert more — achieving higher average orders than industry benchmarks — and grow their businesses quickly. You'll be able to encourage checkouts, eliminate friction on your site, and keep customers coming back for more using BigCommerce customer retention and conversion capabilities.

  • Leverage Page Builder tool to get your store up and running faster and make quick changes to your site, no coding required
  • Streamline checkout with optimised one page checkout and win back customers with shopping cart recovery
  • Put your products’ best foot forward with native Google AMP and optimised images via Akamai Image Manager

BigCommerce Solutions

Headless Commerce

With a robust commerce engine on the back-end, you can create unique shopping experiences wherever.


Using automated customer and pricing segmentation, punch out, purchase orders and net payment terms, user roles, and connections with key ERP, OMS, and CRM systems, you can provide a superior B2B ecommerce experience.


Improve SEO and customer experience for all your customer groups with built-in wholesale capability on both the front and back-end.


BigCommerce partners closely with Facebook, Amazon, Google, PayPal, Square and others to guarantee our customers have early adoption access to new sales capabilities on all channels.

Amazon, eBay, Facebook, Instagram, Pinterest, and Google Shopping have pre-built integrations, allowing you to sell everywhere from a single dashboard.


Localized site content, currencies, and channels will help you expand your market presence in global regions.