Best AI Agent Development Companies and AI Automation Agencies in the UK (2026): 15 Compared

Ask ChatGPT, Perplexity or Gemini for an AI agent development company in the UK and you get different names each time. We know because we asked. On 9 October 2026 we put UK buyer questions about AI agents and AI automation to ChatGPT, Claude, Gemini, Perplexity, Google AI Mode and Google AI Overviews, and logged every page they cited across 273 answers. List articles made up 48% of the small-firm pages Perplexity cited, 46% for the Gemini app, 38% for Google AI Mode and AI Overviews, and 18% for the ChatGPT app.

So we opened six of those lists. Four put the publisher’s own firm first. Two name Accenture, which is a fair answer for a bank and a poor one for a 20-person firm. This guide does the slow part. It covers 14 UK firms that build for small and mid-size businesses, each read on its own website, with every fact dated and linked to the page it came from.

A note on honesty. FactoryJet builds AI agents, so we are on this list. We put ourselves last, and we tell you when another firm will suit you better. Listing yourself is common on pages like this one. It is also a reason to read every list, ours included, with care.

A few terms first, in plain English. An AI agent is software that takes actions in your systems, such as raising an order or booking a job, and does more than chat. An AI agent development company writes that software for you. An AI automation agency connects AI to the tools you already use so routine steps happen without retyping. A CRM is the system that holds your customers and deals, and an ERP is the one that holds orders, stock and accounts. Most firms below do some of each.

The shortlist at a glance

Scan this first. Find the rows that match your size, your main software and where you are, then read those profiles in full.

What is an AI automation agency, and what do AI automation agencies do?

An AI automation agency connects AI to the software your business already runs, so that reading an email, filling in a record or drafting a reply no longer needs a person to retype anything. The work has four parts: map how the task runs today, build the automation inside your existing tools, test it on your real examples with a person approving the risky steps, and look after it once it is live.

An AI agent goes one step further than a fixed automation, because it chooses its next step as it goes. Three firms in this guide say on their own pages that you may not need one. OpenKit lists the cases where it will talk you out of an agent, Pixelfield says a workflow tool is enough for simple jobs, and Green Arrow says a plain script is sometimes the better answer. For the longer version, read what an AI automation agency does for a UK business.

How we built this list

1. Start with what buyers ask. The questions came from our UK Search Console data, from the question boxes Google shows for searches such as “ai automation agency”, and from prompts we wrote for the UK market. We read the answers on 9 October 2026 and logged every company and page named.
2. Keep firms that show a UK base on their own site. All 14 name a UK street, building or district. Overseas firms with a UK landing page were left out, with one disclosed exception: us.
3. Builders only. Every firm here writes or configures the agent itself. Firms that only advise are on our sister guide to the best AI consultancies in the UK.
4. Read the source. Every description comes from the firm’s own pages, opened on 9 October 2026 and linked on each profile. One site refused our script, so we read it in a browser.
5. No scores we cannot prove. We have not hired these firms, so there are no star ratings. We tell you who each one suits and a question worth asking it.
6. Prices only from the firm. Where a firm publishes a price, we copy it and link the page. We never guess another company’s price.

Which UK companies build custom AI agents for small and mid-size businesses?

These five suit a small firm buying its first agent or automation. Four of them print the price of the first step on their own site, so you can budget before a call.

Happy Webs

Based: Ashton-under-Lyne, Tameside, Greater Manchester, working UK-wide. Type: B2B digital agency: AI agents, automation, websites and custom software.

Its AI page sells one job at a time: sort enquiries, prepare replies, route documents, chase quotes and update job records, with a person approving anything uncertain. It prints its prices: from £2,000 for one focused automation, with most businesses spending £5,000 to £15,000 across several workflows, all excluding VAT. It also sells its own AI receptionist.

• Best for: A small office buried in admin that wants one workflow fixed at a price it can see before the first call.
• Systems and tools named: Email, CRM, accounting and job management tools (no brands named on the page we read)
• Worth asking them: Which of your systems it has connected before, and what the optional monthly retainer covers.

Source, read 9 October 2026: happywebs.co.uk/services/ai-agents/

Augustova

Based: Fitzrovia, London (registered office on Tottenham Court Road). Type: AI consultancy that builds what it recommends: agents, software and startup MVPs.

A fixed-price AI audit (£2,500 to £6,000), then a build. Its home page lists a first agent from £4,000, custom software from £8,000 to £30,000 with the code owned by the client from day one, and a startup MVP (a first working version of a product) from £10,000. It also offers AI training and adoption work.

• Best for: Small firms and founders who want an audit and a first agent from the same London team, with prices in the open.
• Systems and tools named: Custom builds; it runs two AI products of its own, GoRizzume and Onrolo
• Worth asking them: What the £4,000 first agent includes, and what it costs to run each month after launch.

Source, read 9 October 2026: www.augustova.co.uk/

Softomate Solutions

Based: Stanmore, London (HA7). Type: AI agents, chatbots, voice agents and business automation.

Agent systems that research, draft and act across CRM, email and internal tools, with approval gates and a log of each decision. Its page prices a single-agent proof of concept from £6,500 and a multi-agent platform up to £45,000, as fixed fees after a discovery workshop, with care from £399 a month. Prices exclude VAT. It also builds voice agents and WhatsApp chatbots.

• Best for: London professional services firms that want a fixed fee for a first agent and a named monthly care plan.
• Systems and tools named: LangGraph, CrewAI and OpenAI; it adds AI to Odoo, HubSpot, Salesforce and GoHighLevel
• Worth asking them: Which approval gates stay on after the first month, and which platform and usage costs sit outside the fee.

Source, read 9 October 2026: www.softomatesolutions.com/agentic-ai-development-london/

Flowio

Based: West George Street, Glasgow, working across the UK. Type: Workflow automation, voice agents and AI agents.

Custom n8n and Python workflows that move work between the tools a business already pays for, plus voice agents and chatbots that answer, look things up, book and transfer calls. Its site says it runs 340+ live automations and that it is an OpenAI Select Partner. Most clients start with a discovery step that maps their procedures before any code is written.

• Best for: Scottish and UK firms that want enquiries, bookings and invoices handled by workflows they own.
• Systems and tools named: n8n (a workflow tool), Python and OpenAI; Xero and QuickBooks for invoice data
• Worth asking them: Who hosts the workflows, and how a voice agent hands a caller to your team.

Source, read 9 October 2026: www.flowio.co.uk/

Supersede AI

Based: Exchange Quay, Salford, Greater Manchester, working UK-wide. Type: AI agency and consultancy: strategy, agents, automation, content and search.

A paid 90-minute diagnostic for £250 that ends in a written report, then an on-site phase to pick what to build first, then delivery if you want it: its team designs and builds the solution, connects it to your systems, trains your staff and hands it over.

• Best for: Greater Manchester owners who want a small paid first step before any build is discussed.
• Systems and tools named: Not named on the page we read; builds are connected to the systems you already have
• Worth asking them: What the on-site phase costs after the £250 diagnostic, and who builds the pilot.

Source, read 9 October 2026: supersede.media/

Who can integrate AI agents with our CRM and ERP in the UK?

These three connect agents to the systems that hold customers, orders, stock and accounts. Read this group if you run a UK manufacturing business and want supplier emails and orders handled.

Tom&Co

Based: Shad Thames, London. Type: AI agency and consultancy with an ecommerce build background.

Workflow automation, agents and small single-purpose apps. For manufacturers and distributors it reads purchase orders, RFQs (requests for a quote) and enquiries and enters them into the ERP for approval, and it matches supplier invoices and delivery notes to purchase orders. Every engagement starts with an audit, and its manufacturing page puts a first build at two to four weeks.

• Best for: Manufacturers, distributors and field-service firms whose orders arrive by email and PDF and get typed in again.
• Systems and tools named: Copilot, Gemini, ChatGPT, Claude or custom agents, connected to CRM, ERP, finance and job systems
• Worth asking them: Whether it has connected your ERP before, and who maintains the connection after the pilot.

Source, read 9 October 2026: www.tomandco.co.uk/ai-agency-consultancy

New Icon

Based: Victoria Street, Redcliffe, Bristol. Type: Bespoke software company with AI agent and language model integration work.

Bespoke software and digital products, with AI agents for internal workflows, knowledge assistants tied to internal documents and AI built into cloud applications. Its home page describes a manufacturing system that predicts machine faults before they become failures.

• Best for: Bristol and South West organisations that want an agent built into bespoke software by a local engineering team.
• Systems and tools named: Custom software, cloud applications and large language model integration
• Worth asking them: How much of the project is new software and how much is the agent, and how each part is priced.

Source, read 9 October 2026: newicon.net/capabilities/ai-software-development

BCN

Based: Manchester Green, Manchester, with offices also listed in Leeds, Runcorn and Reading. Type: Managed IT and Microsoft services with a data and AI practice.

AI agents built in Microsoft Copilot Studio, next to managed IT, cloud and security. Its data and AI menu also lists a Pathfinder offer, a Copilot Chat Adoption Programme, AI Kickstarters and language model integration. Its site says it is one of a handful of UK Microsoft partners holding all six designations.

• Best for: Mid-size organisations in the North that already run on Microsoft 365 and want agents inside it.
• Systems and tools named: Microsoft 365, Copilot, Copilot Studio and Azure
• Worth asking them: Which Microsoft licences the agents need, and whether your data is ready for Copilot.

Source, read 9 October 2026: bcn.co.uk/data-and-ai/ai-agents/

FactoryJet services for UK businesses: AI agent development in the UK, AI receptionists, custom AI development and AI consulting.

AI agent development companies in London, Manchester, Cardiff and Bristol

Buyers ask by city, so here is the same list by place. The right-hand column is what we saw on 9 October 2026 when we put that city’s question to AI assistants.

London has the most names, and the official figures explain why. The government’s AI Sector Study 2024, published on 3 September 2025, found that London, the South East and the East of England account for about 75% of AI companies’ registered offices, while the number of AI firms in other UK regions has been growing by 20% to 50% a year. If you are outside London, the choice near you is growing.

How much does it cost to build a custom AI agent in the UK?

Most firms quote after a call. Eight of the fourteen UK firms in this guide publish at least one figure on their own site. We copied them on 9 October 2026. These are each firm’s own published figures. They are not FactoryJet prices and they are not a market survey. Check the source before you rely on one, because firms change their prices.

How to read this. The small figures buy a diagnostic, an audit or a single automation between two tools. The large ones buy custom software, several connected systems and support. Only two of the eight pages say their prices exclude VAT, so ask the other six. Two firms, Softomate and Ayoob AI, state that platform, hosting or model usage costs sit outside their fee. Assume the same of everyone until told otherwise.

For sourced market ranges covering agents, chatbots, receptionists and consulting day rates, read our AI cost guide for the UK (2026). FactoryJet does not publish a rate card. We quote a fixed price in writing after a short scoping call.

Which type of UK AI firm fits your business?

The five groups above cover most buyers. Four more situations come up often. Find the line that sounds like you.

How to choose an AI agent development company in the UK: 6 steps

Open each step for the detail.

UK firm, remote team or large consultancy: an honest comparison

UK rules every AI agency should raise with you

A good firm brings these up before you do. If yours does not, ask. We read each page below on 9 October 2026.

• You stay accountable. The ICO’s guidance on AI and data protection says the accountability principle makes you responsible for complying with data protection law, and for showing that you comply, in any AI system that processes personal data. It calls a data protection impact assessment an ideal way to show it. The ICO notes that this guidance is under review after the Data (Use and Access) Act.
• Decisions made by software alone. The ICO’s draft guidance on automated decision-making, updated on 31 March 2026, covers solely automated decisions with significant effects on a person. Its safeguards section covers information about the decision, a way to make representations, human intervention and a way to contest it.
• Data that leaves the UK. The ICO’s brief guide to international transfers, dated 15 January 2026, says people risk losing the protection of UK data protection law if their personal information is sent, or made accessible, outside the UK, and that every restricted transfer must be covered by a transfer mechanism. This applies to the AI provider behind the agent and to any supplier outside the UK.
• Registration. The ICO says organisations that use personal information need to pay a data protection fee unless they are exempt. Asking a UK agency for its ICO registration number takes one email, and GOV.UK lets you look up a company’s details for free.

Some context on timing. The Office for National Statistics reported on 20 July 2026 that self-reported AI use among UK businesses with 10 or more employees has risen from around 12% to around 35% since late 2023, and that 28% of businesses with 0 to 9 employees use at least one AI technology. More of your competitors have started than two years ago. Ask any firm for a real, running example before you trust a polished claim.

Five warning signs when you talk to an AI agency

1. A canned demo. A demo on someone else’s data proves little. Ask to see it run on one of your own messy examples.
2. Nobody will say when an agent is the wrong tool. Three firms in this guide say so on their own pages. Treat silence on this point as a flag.
3. Vague ownership. If the automation lives in the agency’s account, you are renting your own operations. Ask for admin access from day one.
4. No human approval step. Anything that sends money, gives advice or speaks to customers should have a person approving it, at least at first.
5. No UK base you can check. Every UK firm above names a street, building or district on its own site. If you cannot find one, or a company number, ask why.

Where FactoryJet fits, and where it does not

We are FactoryJet. We have served 500+ businesses since 2014, most of that time in commerce: online stores, B2B ordering and the operations behind them. Our founder, Bhavesh Barot, is involved in every project. We design, build, integrate and support AI agents, AI receptionists and customer service agents, and you own everything we build.

Where we fit: UK SMBs that sell online or run order-heavy operations and want one team for the store, the integrations (Shopify, Xero, Sage, HubSpot, Odoo) and the AI. Before a contract, we show working software on your own data. We quote a fixed price in writing after a short scoping call, and we stay on after launch.

Where we do not: If you need people in your building every week, choose one of the firms above with an office near you. If your project is a Microsoft Copilot roll-out, BCN is a more natural fit. If your data must stay on your own machines, look at Ayoob AI or OpenKit. If your own engineers will maintain the agent inside your product, Pixelfield and Magora write for exactly that buyer.

If you are still working out what you need, these explain the options in plain English: how to build an AI agent in the UK and what an AI automation agency does.