Assessment
Seccl runs the back end of an investment platform. It holds client assets through its custodian, places trades, wraps accounts in ISAs, pensions and general investment accounts, and exposes all of it through an API and its own adviser and client portals. Use it when a firm wants a platform under its own brand and is willing to own the client experience.
Seccl was set up in Bath, England, in 2016 and has been owned by Octopus Group since 2019. It reported more than 1 million investors on its infrastructure in September 2026, double the figure of a year earlier, and its clients include Monzo, Tide and MoneySuperMarket. Seccl does not publish revenue for the whole business. Its regulated custodian, Seccl Custody Ltd, held ~$3.8B of client assets at 30 April 2025, and that entity's own accounts show turnover of ~$3.5M for the year to that date.
It fits an adviser firm, wealth business or fintech that wants control over its platform and a modern API. It is a weaker fit for a firm that wants a finished retail platform with no build work, or one that needs to publish its price before talking to sales.
Rating by criterion
Each of the eight criteria below is scored out of 100.
Sector criteria
Seccl runs the main UK wrappers itself: a flexible ISA, a Junior ISA, a self-invested personal pension with digital drawdown and a general investment account, including joint accounts. Offshore bonds and SSAS pensions come through partners. It is UK-focused, and its new Irish business is its first step into Europe.
Advisers get a portal for onboarding, transfers and model portfolios, and clients get a branded app or web view. Firms that want their own front end build it on the API instead.
Everything in the platform is available through a documented API, so firms can plug in their own apps, CRM and planning tools. Seccl says it starts more than 25,000 platform transfers a month, which suggests the transfer links are well used.
Seccl Custody Ltd is authorised by the Financial Conduct Authority (firm reference 793200) and holds client assets. Seccl reports processing more than 50 million transactions in 2026, so the operations are tested at scale. Ask how cash is held and which banks hold it.
Vendor criteria
Recent work includes Monzo's investment migration, new propositions for Tide and MoneySuperMarket and the Irish launch. The pace of new clients is high, so ask how the roadmap is split between large brands and smaller adviser firms.
Set-up is a project: the firm chooses its products, builds or configures the front end and migrates existing clients. Plan for a structured onboarding and check who manages client communications during a migration.
Seccl does not publish its prices. Expect a quote based on assets and accounts, and ask for the custody fee, dealing costs and any minimum charge in writing.
Contracts are negotiated. Ask about minimum terms, what happens to client assets if the contract ends, and how a bulk transfer away would work.
Against its peers
These are the other companies in wealth and brokerage platforms, with their ratings.
Fact file
| Regulator | FCA: Seccl Custody Ltd, firm reference 793200 |
|---|---|
| Investors on the platform | More than 1 million, September 2026 |
| Assets under administration | ~$3.8B at Seccl Custody Ltd, 30 April 2025 |
| Turnover, Seccl Custody Ltd, year to April 2025 | ~$3.5M, custodian entity only; group revenue not published |
| Clients | Monzo, Tide, MoneySuperMarket, Investment Quorum and others |
| Pricing | Not published |
Competitive landscape
Investment infrastructure a UK adviser firm or fintech would compare with Seccl.
Seccl: 75
- Seccl75
- Upvest76
- Apex Fintech Solutions76
- DriveWealth73
- WealthKernelNot reviewed
- FNZNot reviewed
Key leadership
Jonathan Dees has been UK chief executive since August 2025, after six years as chief operating officer of Octopus Investments. David Ferguson, who founded the adviser platform Nucleus, joined as chief executive in 2022 and is now executive chair.
How this review was created
This profile gives our own assessment of Seccl to companies selecting a Wealth & brokerage platforms provider. The Fintech Index receives nothing for featuring a firm, for sponsorship, or for advertising, and Seccl gave us no payment for the profile.
The rating equals the average of eight criteria, with every criterion running from 0 to 100. Four address buyer needs in this sector, and four address the company together with its commercial terms.
Ratings are our editorial judgment, made from public information: pricing and legal pages, product documentation, compliance disclosures, and filings. Fact-checking took place on October 23, 2026.