Brizi is a London-based baby air-pollution protection startup that appeared on the UK Dragons' Den in Series 16, Episode 1 (first aired 12 August 2018). Founders Yosi Romano and Ziv Leinwand pitched the Brizi Baby device, a cushioned fan-filter that sits on a pram or stroller and [reduces a child's exposure to harmful particles and gases by up to 80%](https://www. chinadaily. com.
Brizi Dragons Den Net Worth: How to Estimate and Verify
Marcus Thorne
20 Jun 2026
cn/a/201709/26/WS5a0bdf80a31061a738404b48. html). They secured a deal with Dragon Touker Suleyman for £125,000 in exchange for 25% equity. The best-supported estimate of the company's net worth at peak is in the low-to-mid six figures in sterling, based on that £500,000 implied valuation at deal time and the limited revenue profile of an early-stage hardware startup.
The company was dissolved in April 2024, which puts a hard ceiling on any current valuation claims.
Which Brizi are we actually talking about?
This is worth clearing up because the name causes genuine confusion. The Brizi connected to Dragons' Den is BRIZI LIMITED, a UK-registered company with Companies House number 10141363. It was incorporated on 22 April 2016, operated out of 130 Shaftesbury Avenue, 2nd Floor, London, W1D 5EU, and was dissolved on 2 April 2024. Its product was the Brizi Baby device, a pram-mounted air filter aimed at parents in polluted urban areas.
There are other companies and individuals using similar names globally, including businesses in India, the US, and elsewhere. None of those have a confirmed Dragons' Den connection. If you have landed on a net worth figure for a "Brizi" that does not reference the UK television show, Yosi Romano, or a baby air-filter product, you are probably looking at a different entity entirely.
Why people search for Brizi's net worth after Dragons' Den
Dragons' Den appearances reliably spike curiosity about a company's value. When a deal is shown on screen, viewers immediately want to know: did the founders actually make money? Was it a good deal? What happened next? The on-screen deal with Touker Suleyman, reported as signed, gave Brizi a rough implied valuation of £500,000 (£125,000 for 25%). That headline number is what most readers are actually trying to unpack. It is not a net worth figure in the personal wealth sense but a company valuation snapshot at a single negotiating moment.
The additional context that drives search interest: Brizi reportedly attracted offers from multiple dragons during the pitch, with some tension noted between co-founder Ziv Leinwand and Peter Jones during the episode. That drama tends to keep an episode in circulation on YouTube and in news recaps, which means people are still discovering it years after it aired.
How to build a net worth estimate for Brizi
Estimating net worth for a small hardware startup is genuinely different from estimating it for a celebrity or a large franchise. For Brizi specifically, the relevant inputs are: the equity valuation implied by the Dragons' Den deal, any revenue or assets reported in company filings, and the personal stakes held by the founders. Here is how each of those factors works in practice.
The equity valuation
The Dragons' Den deal pegged the company at a £500,000 pre-money valuation. That is the number you get when you divide the investment (£125,000) by the equity given (25%). This is a negotiated figure agreed under television conditions and is not a verified market valuation. Real early-stage valuations often shift significantly between the filming of a deal and when paperwork is signed, and many Dragons' Den deals are renegotiated or fall through after cameras stop rolling.
The record for BRIZI LIMITED at Companies House confirms that Ziv Leinwand was appointed as director on 11 September 2018 (after the episode aired) and later resigned on 9 March 2022, which suggests the business continued operating for several years but eventually changed structure. [Companies House officer records for BRIZI LIMITED](https://find-and-update. company-information. service.
gov. uk/company/10141363/officers) also list Yosi Romano as a director appointed on 22 April 2016 and Ziv Leinwand as a director appointed on 11 September 2018, later resigning on 9 March 2022.
Revenue and assets from filings
BRIZI LIMITED filed accounts up to 31 March 2023, using the total exemption (small company) accounting rules. Small company accounts filed under exemption in the UK do not include a full profit-and-loss statement, so revenue figures are not publicly available from Companies House. What is available is a balance sheet showing total assets and cash. Third-party database summaries (such as those published on GlobalDatabase.com) aggregate these numbers, but treat them as re-published summaries rather than primary sources. The primary source is always the actual filing downloadable from Companies House.
Founder equity and personal net worth
The Companies House PSC (Person with Significant Control) register lists Yosef Romano as controlling more than 50% but less than 75% of shares and voting rights. At a £500,000 valuation and a 50-75% stake, Romano's theoretical equity value would be in the £250,000 to £375,000 range, before accounting for the Dragon's 25% and any other dilution. That is a rough ceiling, not a floor, and it is a paper value that only materialises if the company is sold or raises further capital.
What public estimates exist and how much should you trust them
There is no verified third-party net worth figure for Brizi or its founders published by a credible financial outlet. If you are trying to find dragons den net worth canada style numbers, start by treating the £500,000 deal valuation as a company figure, not personal wealth. What circulates online tends to be one of three things: a restatement of the Dragons' Den deal valuation (£500,000), a speculative figure generated by content sites using the deal valuation as a proxy for net worth, or profiles on startup databases like F6S, TechRound, or Dealroom that describe the company without providing audited financials.
Sites that publish a specific personal net worth figure for Yosi Romano as the "Brizi Dragons' Den" figure are almost certainly working backward from the deal valuation and making assumptions about founder equity percentage. Those numbers can vary widely depending on the assumptions used. Treat any figure between £200,000 and £500,000 as a plausible range, not a confirmed number. Anything significantly higher would require evidence of follow-on revenue, additional investment rounds, or licensing deals that have not been publicly reported.
| Source Type | What It Tells You | Trust Level |
|---|---|---|
| Companies House filing (primary) | Total assets, cash, liabilities, officer history | High — official government record |
| Dragons' Den deal terms (on-screen) | Implied company valuation at time of filming | Medium — negotiations often change post-filming |
| Startup databases (F6S, Dealroom, TechRound) | Founding story, founders, basic product info | Low-medium — no audited financials |
| Content site net worth estimates | Usually a restated deal valuation | Low — methodology rarely disclosed |
| Press interviews / Kickstarter data | Revenue targets, product stage, market ambitions | Medium — useful context, not verified income |
The income streams that would have driven Brizi's value
Understanding where Brizi's money could have come from helps you judge how realistic any net worth figure is. The company had a few distinct potential revenue channels.
- Kickstarter campaign: Brizi launched a crowdfunding campaign in September 2017 targeting £105,000. Crowdfunding success at that level would have provided working capital but not significant profit, given hardware production costs.
- Direct product sales via brizi.com: The archived website suggests direct-to-consumer retail was the primary sales channel. Margins on a specialised baby hardware device are typically tighter than software products, with costs for components, assembly, shipping, and returns.
- Dragons' Den investment: The £125,000 from Touker Suleyman would have been used as working capital, not personal income for the founders. It increases the company's assets but also introduces a 25% equity dilution.
- Potential licensing or OEM deals: The China Daily profile mentioned Yosi Romano targeting the Chinese market, which could point to licensing or distribution agreements. No confirmed deal terms have been publicly reported.
- Media and PR value: Dragons' Den exposure generates brand recognition and often a short-term sales spike. This is real economic value but it is impossible to quantify without sales data.
- Consulting or B2B contracts: Some hardware startups pivot toward institutional or B2B sales (hospitals, nurseries, local governments). There is no public evidence Brizi pursued this, but it is a plausible adjacent revenue stream.
The dissolution of BRIZI LIMITED in April 2024 is a significant data point. Companies are dissolved voluntarily (striking off) or compulsorily (enforcement). Either way, it signals that the company was no longer actively trading at a meaningful scale by that point. This makes multi-million-pound net worth claims for Brizi essentially unsupported.
How to verify or update the number yourself right now
If you want to do your own research rather than rely on aggregated summaries, here are the actual steps to take today.
- Go to Companies House (find-and-update.company-information.service.gov.uk) and search for company number 10141363 or the name BRIZI LIMITED. Download the most recent filed accounts directly. The last accounts cover the period to 31 March 2023 and were filed 24 October 2023. Look at total assets and net assets on the balance sheet.
- Check the PSC register on the same Companies House page to confirm the current shareholder structure and what percentage Yosef Romano held. This tells you the fraction of any company value attributable to the primary founder.
- Search for Brizi or Yosi Romano on Dealroom or Crunchbase to see if any funding rounds beyond the Dragons' Den deal were recorded. A follow-on round would revise the company valuation upward.
- Search for press coverage from 2018 to 2024 using Google News with date filters. Look specifically for sales milestones, new retail partnerships, or licensing announcements. These are the signals that would justify a valuation above the Dragons' Den deal figure.
- Check brizi.com via the Wayback Machine (web.archive.org) to see when the site was last active and whether it showed active product listings near its shutdown. A site that stopped updating well before the dissolution date suggests the business wound down gradually.
- Search LinkedIn for Yosi Romano to see current professional activity. If Romano moved on to a new venture, the Brizi chapter is likely closed and any net worth figure should be treated as historical.
- If you want the Kickstarter data, search Kickstarter directly for "Brizi Baby" to see the final funding total and backer count. That gives you a real revenue floor for the crowdfunding phase.
Net worth vs valuation: the misconception that drives bad estimates
The single biggest mistake readers make when reading Dragons' Den net worth articles is treating the company valuation as the founder's personal net worth. They are not the same thing. The £500,000 valuation implied by the Brizi deal is the estimated worth of the entire business at that moment.
Some sites even fold unrelated “door jammer” claims into Dragons' Den net worth searches, so make sure you are linking the correct company and valuation context door jammer dragons den net worth. The founder's personal net worth is their equity stake in that business (minus liabilities), plus any other personal assets, minus personal debts.
For an early-stage hardware startup, the founder's personal finances often look very different from the company's valuation, especially if they took a low salary during the startup phase.
It is also worth noting that company valuations at early funding rounds are speculative. They reflect what an investor is willing to pay for a stake under a specific set of optimistic assumptions about future growth. If those assumptions do not materialise, the real liquidation value of the business can be a fraction of the funding-round valuation. Given that BRIZI LIMITED was dissolved in 2024, any peak valuation figure from 2018 should be understood as a historical snapshot, not a current measure of anyone's wealth.
For broader context: if you are exploring the financial landscape of Dragons' Den more generally, the individual Dragons themselves represent a very different wealth tier. Judges and investors on the show typically have net worths in the tens or hundreds of millions, which is why they can write £125,000 cheques as a portfolio investment. If you are trying to estimate Dragons' Den judges net worth, focus on credible public records and avoid reusing unrelated deal valuations as a shortcut Dragons' Den judges' net worth. The net worth picture for Dragons' Den as a whole, the judges, and other pitching companies like Zapper and Door Jammer all follow the same pattern: the deal valuation is the starting point, and the real story depends on what happened to the business afterward.
For Brizi specifically, the honest summary is this: at the time of the Dragons' Den deal in 2018, the company was valued at approximately £500,000. Yosi Romano's personal stake implied a paper value somewhere between £250,000 and £375,000 at that moment. The company operated for roughly six more years before dissolving in April 2024. Without evidence of significant revenue growth, follow-on investment, or a trade sale, there is no credible basis for a net worth figure substantially above that initial implied range. Anyone quoting a number far higher than that should be asked: what is the source, and what assumptions does it use?
FAQ
Does the £500,000 Brizi Dragons' Den number mean the founders were personally worth £500,000?
No. It is an implied valuation of the company at a single negotiating moment (based on £125,000 for 25% equity). Founder personal wealth would depend on how much of their stake they actually held over time, plus any liabilities, salaries, and other assets, which are not the same as a round valuation.
Why do some websites show very different “Brizi net worth” numbers?
Most site figures are restatements or extrapolations from the deal valuation, not audited financial outcomes. Different assumptions (founder ownership percentage, dilution, whether assets were converted to cash, and whether the company had off-balance-sheet IP value) can push results up or down, sometimes without new evidence.
What should I use as the primary source if I want to verify Brizi Limited’s financials?
Use the actual Companies House filings for BRIZI LIMITED, especially the filed accounts up to 31 March 2023. The “small company” rules can limit what income statements are publicly shown, so rely on the balance sheet figures (assets and cash) rather than third-party summary sites.
How can dissolution in 2024 affect any net worth claim?
Dissolution usually means the company was no longer actively trading at meaningful scale by that point. That makes high current “net worth” claims speculative unless there is evidence of later funding, a trade sale, or ongoing operations under a different legal structure.
If the Dragons' Den deal was “signed,” could the valuation still be wrong for what they later ended up with?
Yes. Even when a deal is reported as signed on screen, early-stage deals can be renegotiated or fail to complete after filming. Also, the liquidation value years later can be far below the optimistic paper valuation if expected growth did not materialize.
How do I estimate a founder’s potential equity value from the deal?
Start with the deal implied pre-money valuation logic (investment divided by equity percentage, then apply the founder’s ownership range). Then adjust for dilution and any changes in shareholdings over time. Even then, it is only a theoretical equity value unless you have proof of a sale, buyback, or real distributions.
Can Brizi have been profitable but still show no public revenue figures?
It is possible. With small company accounts filed under exemption, detailed profit and loss information may not be publicly available. You may need to infer from balance sheet changes (for example, cash levels and assets) and from any notes in the filed accounts, not just assume revenue must be visible.
What’s the fastest way to avoid mixing up similarly named “Brizi” businesses?
Confirm the company identifiers tied to the Dragons' Den connection you mean: the UK entity name (BRIZI LIMITED), and if possible the Companies House number (10141363), founding names, and the specific product (pram-mounted baby air filtration). If a figure does not align with those identifiers, treat it as a different entity.
Is there any credible way to estimate current value after the company was dissolved?
Only with extra evidence. Without proof of an asset sale, licensing stream, or successor company, the best you can do is treat the Dragons' Den valuation as a historical snapshot and describe a likely outcome range based on publicly visible assets at the latest filing.
What follow-on evidence would justify net worth claims above the initial £200,000 to £500,000 range?
You would typically need documented follow-on investment rounds, a recorded trade sale or acquisition, or material revenue and cash growth shown in later filings. Absent that, ask for the exact source and assumptions used to reach any much higher number.
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