Quick answer
The best AI automation agency for you depends on three things: the platform you want to build on, whether you need voice, and how big the project is. Here's the short version. The order isn't a ranking.
| Agency | Based in | Best for | Platforms |
|---|---|---|---|
| Makeitfuture | London (plus EU offices) | Make.com and Airtable stacks at scale | Make, Airtable, Zapier |
| n8n Lab | Delaware HQ, London consultations | n8n-first builds and AI agents in workflows | n8n, OpenAI, Claude, Gemini |
| flowio | Glasgow and Edinburgh | UK SMBs wanting n8n plus code | n8n, Python, GCP/AWS |
| OpScaling | Newquay, Cornwall | Pay-as-you-go automation help | Zapier, Make, n8n |
| Hestur AI | Distributed, UK hours | Voice AI and custom AI agents | Vapi, LiveKit, Retell, n8n, Make, Python |
| Antek Automation | Andover, Hampshire | Packaged voice agents for small firms | Retell, n8n |
| Ronins | London and Guildford | Mid-sized firms redesigning processes | Own agentic platform (Sonae) |
| Brainpool AI | London (Mayfair) | Bespoke AI and ML development | Own agentic platform (Cortex) |
| Faculty | London (Old Street) | Enterprise and public sector | Faculty Frontier |
If you only read one line: pick on specialism and evidence, not on who has the biggest homepage claims. Every agency here publishes enough for you to shortlist two or three and ask them the questions in section 4.
How we chose (and our conflict of interest)
Hestur wrote this guide, and Hestur is on it. Most "best agency" lists you'll find are written by an agency that ranks itself first. We think that's unhelpful, so we've done three things differently.
First, every agency needed a UK presence we could verify: a UK office address on its own site or its Clutch profile, or in-person UK consultations it states publicly. Several agencies that appear on other UK lists are headquartered elsewhere with no UK base we could find, so we left them out. Second, every fact comes from the agency's own website or its Clutch profile, and the sources are listed at the bottom. If we couldn't verify something, we didn't include it. We haven't guessed anyone's prices. Where a price appears, the agency published it.
Third, we didn't rank. The list is grouped by what each agency is best for: platform specialists first, then small-business workflow and voice, then bespoke builders, then enterprise. We've put ourselves in the slot where we genuinely compete, which is voice AI and custom AI agents. Nobody paid to be included, and we don't have referral deals with anyone here.
One limit worth knowing: we haven't worked with these agencies as clients, so this guide can't tell you what they're like to work with day to day. Clutch reviews and a reference call will.
The 9 agencies
Each profile covers where the agency is based, who it suits, and the facts it publishes about itself.
Makeitfuture
- Based in
- London office on Great Portland Street, with team members across the UK, France, Romania, and Germany
- Best for
- Businesses already running on Make.com or Airtable that want a large, certified partner
Makeitfuture is the most credentialed Make.com shop on this list. They're a Make Platinum Partner, and Make named them AI Partner of the Year 2025 and No.1 No-Code Company in EMEA for 2024. They also hold Airtable Gold Partner status and Zapier Certified Expert status, so they're comfortable across the main no-code tools rather than tied to one.
They say they've delivered 15,000+ automations for 500+ clients, with a team of around 30 people. They also hold ISO 27001 and ISO 9001 certification, which is useful if your procurement team asks for it. If your business already runs on Make and you want a partner with depth and process, start here.
Source: [1]
n8n Lab
- Based in
- Clutch lists its headquarters in Newark, Delaware. It offers face-to-face consultations in London and says it serves 50+ London companies
- Best for
- Teams that have picked n8n and want AI agents running inside self-hosted workflows
n8n Lab is an n8n specialist and lists itself as a certified n8n Expert Partner. Its London page offers in-person consultations at your office or theirs, with support during UK business hours. The stack it lists goes beyond n8n itself: OpenAI, Claude, and Gemini for models, Postgres and Redis for memory, and Supabase, Qdrant, and Pinecone for knowledge retrieval.
On Clutch it holds a 5.0 rating from 6 reviews, a $1,000+ minimum project size, and a listed rate of $50 to $99 an hour. It's a young firm (founded 2024) with a small team, which usually means you work directly with the people building. Worth a call if you've already decided n8n is your platform.
flowio
- Based in
- Glasgow (Bath Street) with an Edinburgh presence
- Best for
- Scottish and wider UK SMBs that want n8n workflows with custom code where needed
flowio is a Scottish agency founded in 2025. It builds on n8n but also writes Python and JavaScript and deploys on GCP and AWS, so it's not limited by what a low-code node can do. It also lists AI voice agents among its services. Its published method aims to get first workflows live within 14 days.
flowio is one of the few agencies here that publishes its pricing. A single workflow automation starts from £750, and it says most clients spend between £1,500 and £15,000 for a complete solution. It's a small team, so it suits SMBs, B2B service firms, and marketing agencies more than large enterprises.
Source: [4]
OpScaling
- Based in
- Newquay, Cornwall
- Best for
- Businesses that want flexible, hourly help across Zapier, Make, and n8n
OpScaling works across all three major automation platforms (Zapier, Make, and n8n) and adds AI tools like OpenAI, Gemini, and Claude into existing apps. Its service pages cover marketing, sales, customer service, e-commerce, and finance automation, so it's a generalist in the useful sense: it'll connect whatever tools you already have.
Its pricing model is the simplest here. It publishes a fixed rate of £90 an hour plus VAT, with no long-term contracts. That suits you if you want to start small, fix one process, and decide what's next based on results rather than signing a large statement of work up front.
Source: [5]
Hestur AI (us)
- Based in
- Distributed team serving UK and US clients. We don't have a UK office address, but our principals work GMT/BST hours for scoping and support
- Best for
- Voice AI phone agents and custom AI agents that have to integrate with your existing systems
We're a small team, and we're strongest on two things: AI voice agents that answer and book calls, and custom AI agents that take actions across your tools. We build voice on Vapi, LiveKit, and Retell, workflows on n8n and Make, and retrieval (RAG) systems when an agent needs to answer from your own documents. UK builds have included integrations with Dentally, Software of Excellence, Reapit, Clio, Leap, Xero, and Sage.
We work on fixed scope. A proof of concept on your real data takes 2 to 4 weeks and typically costs around £4K to £12K. We price in USD with GBP equivalents. We're not the right pick if you want a Make Platinum Partner, a London office for in-person workshops, or a large data science firm for an enterprise programme. The other agencies here cover those better.
Source: [6]
Antek Automation
- Based in
- Andover, Hampshire
- Best for
- Trades, clinics, and professional firms that want a packaged voice agent on a monthly plan
Antek Automation is a certified Retell AI partner focused on UK service businesses: tradespeople, cleaning firms, estate agents, dental practices, law firms, accountants, and similar. It builds AI voice agents, website chatbots, and n8n workflow automations, and also sells generative engine optimisation (GEO) to help businesses show up in AI search.
Its pricing is packaged and published: voice agents from £97 a month, chatbots from £57 a month, and workflow automation from £250. Plans are month to month with 30 days' notice. If you want a standard AI receptionist for a small business without a scoping project, that model is easier to buy than a custom build.
Source: [7]
Ronins
- Based in
- London (Tavistock Street, WC2) and Guildford, Surrey
- Best for
- Established firms of 50 to 250 people that want to rethink a process, not just speed it up
Ronins is a digital product agency that has moved deep into AI. It offers AI consultancy, AI agents and automated workflows, knowledge search, and sales and marketing automation. It runs its own agentic AI platform, Sonae, with orchestration, approvals, cost control, and an audit trail built in. It works with GPT, Claude, Gemini, and open-source models like Mistral.
Its site publishes clear price bands: discovery workshops at £3,000 to £8,500, proofs of concept at £12,000 to £30,000, and production solutions from £30,000. It says its best work is with organisations of 50 to 250 people. Its stated view is that AI is a chance to rethink how the business works, so expect a strategy-led engagement.
Source: [8]
Brainpool AI
- Based in
- London (Albemarle Street, Mayfair)
- Best for
- Companies with a bespoke AI or machine learning problem and a budget of $25,000 or more
Brainpool AI builds bespoke AI systems rather than configuring automation tools. On Clutch, its service mix is 90% AI development, with machine learning, conversational AI, and natural language processing listed as specialisms. It runs an agentic platform called Brainpool Cortex, designed to run inside your own cloud, and says it draws on a network of 500+ AI specialists.
Clutch lists a 4.9 rating from 4 reviews, a $25,000+ minimum project size, and a rate of $150 to $199 an hour, with a team of 10 to 49. That puts it in a different bracket from the no-code shops above. It's a fit if you need custom models or an AI capability your team will own long term.
Source: [9]
Faculty
- Based in
- London (Old Street), recently expanded to Australia
- Best for
- Large enterprises, government, and the NHS
Faculty isn't an automation agency in the n8n or Make sense. It's a London applied AI company with around a decade of work behind it. Its main product is Faculty Frontier, and its clients include government bodies, the NHS, NESO, and the Defence Science and Technology Laboratory. It has also worked with OpenAI on red-teaming for AI safety.
We've included it because it appears in almost every UK search for AI agencies, and for some readers it's the right answer. If you're a large organisation with a national-scale problem in energy, infrastructure, health, defence, or financial services, Faculty operates at that scale. If you're a 20-person firm wanting your inbox triaged, it isn't the right conversation.
Source: [10]
Need an AI phone agent or a custom agent?
That's where we fit on this list. Tell us what you want automated and we'll tell you honestly whether we're the right team, or which of the agencies above is a better match.
Talk to usHow to choose an AI automation agency in the UK
Start with the problem, not the agency. Write down the one process that costs you the most time, the tools it touches, and what "done" looks like. Then match it to a specialism. A Make.com workflow, an AI phone agent, and a custom machine learning model are three different jobs, and the agencies above are good at different ones.
Next, decide how you want to pay. You'll find three models on this list. Packaged monthly plans (Antek Automation) are easiest to buy and suit standard use cases. Hourly billing (OpScaling) lets you start small. Fixed-scope projects (flowio, Ronins, and us) give you a known price for a defined result. None is better in general, but mixing them up causes most budget surprises.
Questions to ask on the first call
- Can you show me a live system you built that looks like mine, not a demo?
- Which platform would you use for this, and what would make you pick a different one?
- Who owns the workflows, code, prompts, and accounts when the project ends?
- What does it cost to run each month after launch, including AI model and telephony fees?
- What happens when the AI gets something wrong? Show me the fallback and the human handoff.
- Who maintains it when a connected tool changes its API, and what does that cost?
Red flags
- A guaranteed percentage saving before they have seen your data or processes.
- The system runs in their accounts and you can’t export it if you leave.
- No clear answer on where your customer data goes and which AI providers see it.
- Every problem gets solved with the one platform they resell.
- A long discovery phase with no working prototype at the end of it.
If you're still deciding whether an agency is the right route at all, our comparison of an AI agency vs an in-house team walks through the cost and timeline of each.
UK-specific checks
UK GDPR and the Data Protection Act 2018. Your agency will almost always be a data processor for you, which means you need a written data processing agreement covering what data it handles, how long it keeps it, and which sub-processors (AI model providers, telephony, hosting) touch it. Ask for the sub-processor list in writing.
The ICO. Most UK organisations that process personal data must pay the ICO data protection fee. If your automation introduces new processing, such as recording calls or scoring leads with AI, the ICO's guidance expects you to consider a data protection impact assessment. A good agency will raise this before you do.
Data residency. Ask where each piece of data is stored and processed. Many AI model providers process data in the US by default, and some offer UK or EU hosting. If data leaves the UK, you'll need a valid transfer mechanism, such as the UK Extension to the EU-US Data Privacy Framework or the ICO's International Data Transfer Agreement. Self-hosted n8n is one way to keep workflow data on servers you control.
Call recording and voice AI. If you deploy an AI phone agent, callers should be told they're speaking to an automated system and whether the call is recorded. For regulated sectors (FCA-authorised firms, CQC-registered clinics), make sure the agent escalates anything that looks like regulated advice to a human.
IR35. You don't need to worry about it for a normal agency engagement. IR35 targets individual contractors in roles that look like employment. A fixed-scope project delivered by an agency usually sits outside it. If you're hiring a solo freelancer on a rolling basis, check with your accountant.
Pricing in GBP. Across the agencies here, published prices run from £97 a month for a packaged voice agent to £30,000+ for a production system. Hourly rates range from £90 plus VAT (OpScaling) to $150 to $199 on Clutch (Brainpool AI). Our own proof of concept is around £4K to £12K, and an AI phone agent runs from about £400 a month after the build. Check whether prices include VAT and whether AI model and telephony usage are billed separately. For how we approach UK projects specifically, see our UK AI automation agency page, or go straight to voice AI, workflow automation, or AI agent development.
Frequently asked questions
What is the best AI automation agency in the UK?
There isn't one best agency. There's a best fit for your problem. If you run on Make.com, a Make Platinum Partner like Makeitfuture is the obvious shortlist. If you want n8n, look at n8n Lab or flowio. If you need an AI phone agent, compare Hestur and Antek Automation. If you're a large enterprise or public body, Faculty is built for that scale.
How much does an AI automation agency cost in the UK?
Published prices from the agencies in this guide run from £97 a month for a packaged voice agent (Antek Automation) and £250 for a single workflow, up to £12,000 to £30,000 for a proof of concept and £30,000+ for a production system (Ronins). OpScaling bills £90 an hour plus VAT. Our own proof of concept sits at roughly £4K to £12K. Your price depends mostly on how many systems the automation has to touch.
Do I need a UK-based agency for UK GDPR compliance?
No. UK GDPR applies to how your data is processed, not where the agency sits. What matters is a proper data processing agreement, a clear answer on where data is stored and which AI providers see it, and the right transfer mechanism if data leaves the UK. A UK agency can make time zones and in-person workshops easier, but it doesn't make a build compliant on its own.
Should I choose n8n, Make.com, or custom code?
Make.com is the quickest to start and easiest for non-developers to maintain. n8n suits teams that want to self-host, keep data on their own servers, or run AI agent steps inside workflows. Custom code makes sense when you need real-time voice, heavy data processing, or logic that low-code tools make awkward. A good agency will tell you which one fits rather than defaulting to the one they sell.
How long does an AI automation project take?
A single workflow can go live in days. flowio, for example, publishes a 14-day target for its first workflows. A proof of concept on your real data usually takes 2 to 4 weeks. A production system touching several tools typically takes 6 to 10 weeks, plus a few weeks of tuning once real users hit it.
Does IR35 apply when I hire an AI automation agency?
IR35 is aimed at individual contractors working through their own limited companies in roles that look like employment. A fixed-scope project delivered by an agency, with defined outputs and the agency controlling how the work gets done, usually sits outside that question. If you're engaging a solo freelancer on an open-ended basis, check the status with your accountant.
Why is Hestur on its own list?
Because we wrote it, and we'd be a credible option for some readers. We've tried to place ourselves where we honestly fit: voice AI and custom AI agents. We're not the right pick if you want a Make.com Platinum Partner, a London office for in-person workshops, or an enterprise-scale data science firm, and the list says so.
Sources
All facts were checked against these pages in September 2026. Agencies update their sites often, so confirm details directly before you buy.
- [1] Makeitfuture: About us (office, partner status, awards, certifications): https://www.makeitfuture.com/about-us
- [2] n8n Lab: London agency page (in-person consultations, London clients, partner status): https://n8nlab.io/n8n-automation-agency-london
- [3] n8n Lab on Clutch (rating, reviews, HQ, min. project, rate): https://clutch.co/profile/n8n-lab
- [4] flowio: About, locations, and workflow automation pages: https://www.flowio.co.uk/about-flowio
- [5] OpScaling: homepage and About us (location, hourly rate, platforms): https://www.opscaling.co.uk/
- [6] Hestur AI: AI automation agency UK: https://hestur.co/ai-automation-agency-uk
- [7] Antek Automation: homepage (address, Retell partnership, pricing): https://www.antekautomation.com/
- [8] Ronins: AI agency page (offices, services, Sonae, pricing bands): https://www.ronins.co.uk/ai-agency/
- [9] Brainpool AI on Clutch (address, rating, reviews, min. project, rate): https://clutch.co/profile/brainpool-ai
- [10] Faculty: homepage (office, Frontier, clients): https://faculty.ai/