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Designed for brands on Shopify earning over £100,000 per month

One solution,
Unlock growth on autopilot

From strategy to launch and everything in between, we have it covered.

GrowthEngine

GrowthEngine – Monthly Shopify retainer packages designed to support your development, growth, and optimization needs, ensuring your store runs at peak performance.

1. Select your service

Starter Growth

For agile, growing brands generating consistent revenue. Perfect if you want expert support without the overhead of a full in-house team.

Plus Scale

For ambitious brands ready to scale aggressively. Built for those who want hands-on execution, strategic input, and accelerated growth.

2. Select your duration

Monthly Cancel Anytime

3 months Save 10%

6 months Save 15%

£5,000 / per month £13,500 / x3 months Save £1500 £25,500 / x6 months Save £4500 £8,000 / per month £21,600 / x3 months Save £2,400 £40,800 / x6 months Save £7,200 Let’s Talk Invite Only Invite Only Invite Only Invite Only Invite Only

Book a Discovery Call

Access to our entire team for less than one in-house hire.

Direct access to the NEXGEN Ecommerce Team. Senior Shopify developers, strategists, growth experts and designers at your service.

Full visibility and control through the NEXGEN CMS (client portal). Track progress, tasks & outcomes in one place.

Up to 40% improvement in page speed performance (on-going).

Improved conversion rates - average 15–25% uplift through CRO support and experiments.

Ensure your store runs smoothly with ongoing fixes, updates, and theme improvements.

Proof in Performance

Performance you can measure, outcomes you can trust.

46%

Increase in eCommerce conversion rate

175+

Site Speed Optimisations completed

3.5x

Return on ad spend across managed brands

28%

Bounce rate reduction after optimisation

300+

Shopify stores optimised

90%

Projects launched ahead of deadline

FAQs

What’s included in a NEXGEN growth retainer?

Our growth retainers give you dedicated access to our full team including developers, designers, CRO experts, and strategists. We handle everything from performance tuning and custom features to A/B testing and ongoing conversion optimisation.

What if I need more support some months?

That’s totally fine we know things can ramp up. You can roll over unused hours or bolt on extra time as needed. We’ll make sure your store always has the resources it needs to keep momentum.

Can I do a full site build within a retainer?

Yes, it’s possible to structure a full Shopify build within your growth retainer, which can be a cost-effective option if you're already working with us. We’ll collaborate on the timeline and scope to ensure it fits within your monthly hours or with an adjusted plan.

However, for faster turnarounds and dedicated focus, we recommend our BuilderPro service a streamlined, fixed-scope package built specifically for one-off Shopify site builds.

Let us know your priorities and we’ll advise on the best path forward.

Can I pause or cancel my retainer at any time?

Yes, you can pause your retainer at any time. We just ask for 30 days' notice if you're cancelling just to ensure a smooth transition and to properly manage any ongoing work. This gives us time to wrap up any active tasks and plan accordingly.

What if my Google ad spend exceeds £7,500/month?

For businesses spending over £7,500/month on Google Ads, we offer an Enterprise Management option. This includes everything in the Plus package with no cap on ad spend. Pricing is 15% of your monthly ad spend, billed separately.