Shopifystorespeoplebuyfrom.
Design, development, migrations and custom apps for brands that have outgrown their theme. A senior team, 40+ Shopify and Shopify Plus merchants, and a bundle builder that lifted emma&noah’s average order value by 61%.
- Only senior engineers and designers
- 40+ Shopify Plus merchants and app owners
- Projects start within 3–5 business days
- Only senior engineers and designers
- 40+ Shopify Plus merchants and app owners
- Projects start within 3–5 business days
- Rated on Clutch
Founders and managers we worked with, in their own words.
Grumspot's team successfully revamped the SEO ReRank app. The team made sure I'm kept up to date on the progress of the project at all times and were very quick to adapt any requested changes.
Very competent team who do the work diligently and professionally while still maintainting an agile approach to accomodating changing business needs.
We're impressed with their professionalism and quick reaction times to issues and requests.
We loved working with Grumspot! They created a custom app for our Shopify checkout that fixed our address issue perfectly. Their quick and effective solution made a big difference for us. Highly recommend!
Grumspot were exceptionally great to work with. They always offered their best advice and were readily available. I thoroughly enjoyed working with them and highly recommend them.
It has been a pleasure working with Grumspot, and we are extremely satisfied with their services. Their communication was exceptional, and their meticulous attention to detail in data gathering stood out. Grumspot consistently exceeded expectations in their deliverables, completing the project on time and providing unwavering support for any questions our team had. We highly recommend Grumspot for any Shopify Plus projects and look forward to collaborating with them again in the future.
Working with Grumspot was a pleasure. They were highly professional in their communications and the final work product, even under a tight deadline.
We build Shopify and Shopify Plus stores for brands that have outgrown their theme, and the apps those stores end up needing. Here is the work, with the product open so you can judge it yourself.
01>80%of orders through the bundle builderRyzonA custom bundle app on Shopify Plus that works like a fitting room: pick the pieces, see the kit, one add to cart.Custom appShopify Plus
026 weeksfrom first commit to productionPIXLIPA configure-to-order Shopify Plus store for modular LED exhibition systems: one page, one price, real SKUs on the order.Custom appShopify Plus
0330EEA countries, live at checkoutPaypercutA Shopify Payments App for a European payment provider: native at checkout in 30 EEA countries, approved through Shopify’s payments review.Public appPayments
04+61%average order valueemma&noahMix-and-match bundle creator on Shopify Plus. Average order value up 61% after launch.Custom appShopify Plus
05€10,000+MRR in the first monthFerma GorataFarm-to-door meat boxes, moved to Shopify with subscriptions straight from the cart. €10,000+ in monthly recurring revenue in the first month.MigrationSubscriptions
06100%custom theme, built from blankVerziSpaceA brand-new Shopify store for a new American fashion label, designed and built from a blank theme.Store buildFashion
What we do.
- Design & build
- Grow
- Run
We design and build Shopify stores, move stores onto Shopify, write the apps a store needs when an installed one will not do, and keep running the stores we build. One team does all of it.
Short version: send us the store.business@grumspot.com
Products, customers, orders and rankings moved over intact, from whichever platform you are on today.
Nine verticals we know well enough to skip the learning curve, each with its own landing page.
- +0%higher average order value after the mix-and-match bundle creator we built on Shopify Plus.emma&noah
- >0%of all orders now go through the category bundle builder we built into the store.Ryzon
- €0+monthly recurring revenuereached after we migrated the store to Shopify and let customers subscribe to what is in their cart.Ferma Gorata
- Built for Shopifyearned by our own apps and by the apps we build for clients, after Shopify’s review of speed, UX and support.SelfServe and client apps
Happy clients
Things people ask before they hire us
Things we have learned running Shopify stores
shopify payment methodsShopify Payment Methods Compared for UK Stores in 2026
Compare Shopify payment methods for UK stores: cards, wallets, BNPL, Pay by Bank and manual options, with fees, regional availability and setup tips.
order management systemOrder Management System Guide for Shopify Brands
See what an order management system controls, from Shopify orders to returns, and how growing UK brands should judge the fit.
b2b marketing email8 B2B Marketing Email Examples: Templates and Breakdowns
Eight proven B2B marketing email examples with subject lines, CTAs, segmentation triggers, cadence and metrics for SaaS and wholesale ecommerce teams.
Tell us what your store needs.
Send a few lines about the store and what is slowing it down. We read it, look at the store, and come back with questions and a price range.