Avium
Results-driven marketing agency based in Bristol specialising in paid acquisition systems: paid media, performance creative, CRO and attribution for brands.
About Avium
Avium, paid acquisition agency in Bristol
Avium is a results-driven marketing agency based in Bristol (United Kingdom) that presents itself as a builder of paid acquisition systems oriented towards revenue, not vanity metrics. Its approach combines paid media, performance creative, landing pages, tracking and conversion optimisation into a connected system in which each layer reinforces the previous one.
The firm was founded by Jago Brett and James Chakraverty. Brett came to marketing from carpentry, civil engineering and cybersecurity, and handles the technical infrastructure: tracking, attribution, campaign architecture and tools that connect advertising spend with revenue. Chakraverty, with a background in pharmacology and musical activity, leads creative strategy, ad production and the testing frameworks that separate winning concepts from noise.
An operating system for paid acquisition
The agency describes its method as a five-layer system rather than a list of services. The first is creative input: static pieces, video and user-generated content produced within testing frameworks designed to find winners quickly. The second is distribution in paid media on Meta, Google and TikTok, with campaigns structured for controlled, profitable scaling and budget allocation based on creative performance and real-time attribution data.
The third layer is landing experiences: every click lands on a page designed to convert, customised for each campaign, audience and objective, never the homepage. The fourth is tracking and attribution intelligence, with server-side infrastructure, CAPI, GA4 and revenue attribution to know what works and why. The fifth is conversion optimisation and scaling, with systematic testing at every touchpoint and scaling frameworks that turn winning campaigns into predictable growth engines.
Capabilities available as standalone engagements
Avium offers its capabilities as part of the full system or as standalone engagements. The catalogue includes:
- Paid media: Meta Ads, Google Ads and TikTok Ads.
- Performance creative: video production and user-generated content.
- Web and landing: landing pages, website design and Shopify and eCommerce.
- Data and CRO: tracking and analytics, CRO and A/B testing, and funnel strategy.
- Retention: email, retention and lifecycle marketing.
- Strategy: growth consulting and channel planning.
Reported results and client portfolio
The agency puts attributed pipeline across all client accounts at more than £20 million, with a blended ROAS of 4.8x, a cost per lead 31% lower than industry benchmarks and more than 10,000 leads generated, qualified, tracked and attributed. Its clients include New Wave Doors, Neutral Dog Co, Rokform, Bristol Tutorial College, Kollabro, Essential Peptides, Constellation Group, The English Education, Torwood House, ProHeat, Apex TP Roofing, One Berkeley Square and John Milne.
New Wave Doors: industrial lead generation
The most detailed case is that of New Wave Doors, a traditional manufacturer that Avium helped move from trade catalogues and showroom footfall to a digital acquisition engine. The agency built an interactive door configurator and connected it to an acquisition system on Meta and Google, with landing pages and server-side tracking. According to published data, lead volume grew 321% (from 70 to 295 per month), cost per lead fell by nearly 60% (from £19.90 to around £8) and £30,000 in annual efficiency savings were achieved.
Neutral Dog Co: performance creative for DTC
At Neutral Dog Co, a dog products brand with strong product-market fit but no systematic way to scale, Avium built a performance creative engine testing dozens of hooks, formats and angles on Meta to find the winning combinations that drive first purchase and repeat revenue. The work included creative testing, a user-generated content pipeline, CRO on Shopify and retention flows.
Bristol Starter Packs: owned media
Avium also created Bristol Starter Packs, an owned hyperlocal media property that went from zero to more than 115,000 followers and more than 10 million monthly views, with 92% local audience. The project is presented as proof of concept for attention as an acquisition channel and for applying the same systematic thinking to content.
Working principles
The agency maintains that only what generates revenue matters and that it measures everything against commercial outcomes, not platform metrics. It argues that connected systems outperform isolated tactics, that the client sees the same dashboards and data as the agency, that small, fast iterations beat large, slow launches, and that it works with a limited number of clients to dedicate senior attention to each account. The team presents itself as two people who work directly with the client, with no intermediate management layers.
Location and contact
Phone: +44 7822 032886 · Email: contact@avium.uk
Paid acquisition systems and performance creative