# SOUND MATHEMATICS LTD (07072191)

> SOUND MATHEMATICS LTD is an active private limited company (company number 07072191) incorporated on 11 November 2009, registered in Cambridge. Its registered activity is other research and experimental development on natural sciences and engineering (SIC 72190). Latest micro accounts cover the period ending 30 November 2025, showing net assets of £66k, with 2 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 39% on the prior period (£48k).

- Status: Active
- Incorporated: 2009-11-11
- Registered office: Cambridge, CB4 2AS
- SIC 72190: Other research and experimental development on natural sciences and engineering
- SIC 85590: Other education n.e.c.
- Next accounts due: 2027-08-30
- Confirmation statement due: 2026-11-25
- Accounts type: MICRO ENTITY

By net assets it sits in the upper half of 193 comparable companies in Cambridge (median £6,914, upper quartile £134k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-11-30 | £66k | — | — | — | — | — | 2 |
| 2024-11-30 | £48k | — | — | — | — | — | 2 |

size band micro.

## Filing and accounts signals (facts, not a rating)

- Net assets above zero: Net assets £66,423 at 30 November 2025
- Net assets up 10% or more on the prior period: +39.4% vs prior period
- Incorporated five or more years ago: Incorporated 11 November 2009

How each signal is derived: https://firmoscan.com/methodology

## Persons with significant control

- Professor Larissa Fradkin — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors, since 2016-04-06

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Source: Companies House register snapshot 2026-08-31, Open Government Licence v3.0. Information may have changed since that date and is not advice or a credit reference; check the official record before relying on it. Official record: https://find-and-update.company-information.service.gov.uk/company/07072191
HTML: https://firmoscan.com/company/07072191-sound-mathematics-ltd