Design, Build, Growth.
UK based digital agency combining creativity with precision engineering.
Work
Work
Work



Durrani & Co.
Design, build and growth for accountants Durrani & Co helping them increase yearly revenue by over ยฃ200k.
Durrani & Co
Design, build and growth for accountants Durrani & Co helping them increase yearly revenue by over ยฃ200k.
Durrani & Co.
Design, build and growth for accountants Durrani & Co helping them increase yearly revenue by over ยฃ200k.

Red Spartan
Helped toys and collectibles specialist Red Spartan launch their first e-commerce store with Shopify.

Qori
Design and UX for crypto to fiat solution Qori helping them raise โฌ2.1m in seed funding (2021).


Marshalls Distribution.
Brand development with the goal of helping this family run business better tell their story as they scaled.

NamaStay.
Design and UX for hotel booking platform NamaStay helping them raise โฌ1.8m in seed funding (2021).
Musings
Musings

Browser mastery, smarter prompting and the economics of GPT-6.
By mastering browser interaction and complex system planning, Astra gives us a cost-effective alternative to higher-tier models.

Browser mastery, smarter prompting and the economics of GPT-6.
By mastering browser interaction and complex system planning, Astra gives us a cost-effective alternative to higher-tier models.

Helping you stay on top of your 5 hour and weekly token usage.
Codex Tracker? Because tracking tokens is a pain. Download and use for free.

Helping you stay on top of your 5 hour and weekly token usage.
Codex Tracker? Because tracking tokens is a pain. Download and use for free.

Slash your GPT-5.6 token spend by matching model tiers to workload.
See how we routed routine tasks to Terra and Luna, reducing spend whilst keeping complex agents on the right tier.

Slash your GPT-5.6 token spend by matching model tiers to workload.
See how we routed routine tasks to Terra and Luna, reducing spend whilst keeping complex agents on the right tier.

How we cut 90% of our AI token costs by running Ollama on an old RTX 3090.
See how we eliminated expensive token costs by building our own AI machine.

How we cut 90% of our AI token costs by running Ollama on an old RTX 3090.
See how we eliminated expensive token costs by building our own AI machine.

Browser mastery, smarter prompting and the economics of GPT-6.
By mastering browser interaction and complex system planning, Astra gives us a cost-effective alternative to higher-tier models.

Helping you stay on top of your 5 hour and weekly token usage.
Codex Tracker? Because tracking tokens is a pain. Download and use for free.
Let's talk โ email hello@heavymask.com
London
The Harley Building, 77 New Cavendish Street, London, W1W 6XB
+44 (0)20 8076 0151
Luton
72 Cardigan Street, Luton, Bedfordshire, LU1 1RR
+44 (0)1582 391178
London
The Harley Building, 77 New Cavendish Street, London, W1W 6XB
+44 (0)20 8076 0151
Luton
72 Cardigan Street, Luton, Bedfordshire, LU1 1RR
+44 (0)1582 391178
ยฉ 2026 This site and its contents are owned by Heavy Mask, UK registered limited company. For All inquiries, please refer to our full terms and conditions.
Let's talk โ email hello@heavymask.com
London
The Harley Building, 77 New Cavendish Street, London, W1W 6XB
+44 (0)20 8076 0151
Luton
72 Cardigan Street, Luton, Bedfordshire, LU1 1RR
+44 (0)1582 391178