Duku AI EIS

Duku AI, the trading name of TCWL Group Limited (“Duku” or ‘the Company’) has built an AI-powered autonomous testing platform to make the software development process faster, more robust and less costly.

The problem

AI is everywhere – in most people’s work and private life – with software developers reportedly being the first to use it at work. Today, 84% are using AI tools, 51% daily, and AI is already writing about 30% of code at Microsoft and Google.

As a result, code velocity has increased 10x, but testing infrastructure hasn't kept pace. Testing remains fragmented, brittle, and heavily reliant on human intervention, taking an estimated 40% of an engineering team's time. And this bottleneck is getting worse.

Automated tests can make test-writing faster or debugging slightly easier, but this still requires humans to write and maintain the tests manually.

Duku’s solution

Using expert testing logic from Meta (Duku’s CTO previously built and led Meta's AI-native testing infrastructure), Duku has developed an AI-native testing platform.

It has created autonomous agents designed to think like engineers, run critical user journeys, catch failures before users do, and self-heal as the codebase evolves. Crucially, there is no need for test scripts, nor maintenance.

It estimates it could save 70 hours of engineers’ time a month and substantially speed up software delivery.

Why consider investing?

Duku is very young, but the team behind it has decades of relevant experience.

Co-founder and CEO Ted Chalouhi previously scaled Go-To-Market functions at companies like Uber, Tripadvisor, Deliveroo. More recently, he helped grow restaurant wholesale platform Foodbomb from pre-seed to a $100+ million exit.

Ted’s co-founder is CTO Will Lewis, whose previous role was at Meta (Facebook) –  where he played a key role in building the social media giant's AI-native testing.

They lead a team of 7, supported by high-profile advisors, including Julian Harty, the “Godfather of Testing”, who built testing systems at Google and eBay.

After six months building the technology, the Company is currently in the process of onboarding its first cohort of 15 clients. These are expected to run a six-month agreement, using the tech free for the first eight weeks, whilst Duku gathers data it can use to self-improve.

After this, Duku expects to onboard clients to tiered payment plans – a monthly subscription with additional usage credits charged if the allowance is exceeded. There are currently 120+ potential customers on Duku’s waiting list, and design partners which are helping the Company achieve product-market fit before launch.

The opportunity

To support product development and early commercialisation, in 2025 the Company raised a £1.6 million seed round led by Celero Ventures (an AI and data-infrastructure specialist VC fund), with participation from high-profile investors, including Antler (the world's most active early-stage investor and the introducer of this offer), and prolific early-stage tech investor Chris Adelsbach, founder of Outrun Ventures and Venture Partner at Techstars. The Company believes this will give it a 24-month cash runway at the current burn rate, showing strong capital efficiency – not guaranteed, you should form your own view. 

The Company is now extending the fully-subscribed round by £500k, giving Wealth Club investors the opportunity to participate under EIS, on the same terms. Duku is also speaking to other funds – shares will be allocated on a first-come first-served basis. The minimum investment is £20,097.60 and you can apply online.

The Company has ambitious plans. Duku expects to start generating revenues in the first half of 2026, and break even in mid-2028 – not guaranteed.

The global software testing market is projected to grow from $279 billion in 2024 to $1.8 trillion by 2030 (35.9% CAGR). Gartner predicts 80% of enterprises will adopt AI-augmented testing by 2027, which should help expands the budget pool for tools like Duku.

Duku is initially targeting high-velocity product teams – c.60-120k companies globally, worth an estimated $2-2.5 billion. It then plans to expand into enterprise – adding $2.5-10 billion to its addressable market.

Duku believes that if it captures even a modest share of its initial market, it has the potential to reach £30–50 million ARR within five years, with a pathway to £100+ million ARR if it successfully expands into enterprise testing. Management believes this could leading to a double-digit investor return on an eventual exit – high risk and not guaranteed. 

As can be expected when investing at this early stage – before product launch and commercialisation – the potential rewards are very significant, but so are the risks. You should form your own view.

This is a single company offer with no diversification. It involves investing in an early-stage, loss-making business, which is by nature high risk and prone to failure. There is a risk that the capital raised may not be sufficient to achieve the Company’s objectives. You could lose all the amount you invest.

Like all investments available through Wealth Club, it is only for experienced investors happy to make their own investment decisions without advice.

There is no ready market for unlisted EIS shares: they are illiquid and hard to sell and value. There will need to be an exit for you to receive a realised return on your investment. Exits are likely to take considerably longer than the three-year minimum EIS holding period; equally, an exit within three years could impact tax relief.

To claim tax relief, you will need an EIS3 certificate, normally issued once shares have been allotted. This can take several months: please check the deployment timescales carefully. Tax reliefs depend on company maintaining its EIS-qualifying status. Remember, tax rules can change and benefits depend on circumstances. Before you invest, please carefully read the Information Memorandum which contains further details on the considerable risks – alongside the Wealth Club Risks and Commitments.

Investors will invest directly in TCWL Group Limited. Shares issued in this round are expected to be EIS-qualifying – not guaranteed. Shares are priced at £2.40, equivalent to a pre-money valuation of £9 million.

Investors pay an initial charge of 6% deducted from subscription. EIS tax relief will be available on the subscription amount net of the initial charge. There are no ongoing fees. Wealth Club will be entitled to a performance fee on exit.

Wealth Club investors will invest using a nominee structure. This service is provided by Wealth Club’s subsidiary companies Wealth Club Asset Management Limited (authorised and regulated by the FCA) and Wealth Club Nominees Limited. Wealth Club Nominees Ltd will be completing the share subscription documentation on investors’ behalf.

Please refer to the Schedule of Charges for more details on charges (may vary for different rounds).

All the services Wealth Club and, where applicable, its subsidiaries provide are governed by the Terms and Conditions of the Wealth Club Services.

This financial promotion has been communicated and approved by Wealth Club Ltd on 21 January 2026

Wealth Club aims to make it easier for experienced investors to find information on – and apply for – investments. You should base your investment decision on the offer documents and ensure you have read and fully understand them before investing. The information on this webpage is a marketing communication. It is not advice or a personal or research recommendation to buy any of the investments mentioned, nor does it include any opinion as to the present or future value or price of these investments. It does not satisfy legal requirements promoting investment research independence and is thus not subject to prohibitions on dealing ahead of its dissemination.