# Crystal Sigma Ltd

## Details

- **Company number:** [04902311](https://find-and-update.company-information.service.gov.uk/company/04902311)
- **Status:** Active
- **Type:** Private Limited Company
- **Incorporated:** 17 Sep 2003
- **Registered office:** 657 NORTH CIRCULAR ROAD, LONDON, NW2 7AY
- **Nature of business:** [43220](/sic/43220) Plumbing, heat and air-conditioning installation
- **Corporate group:** [Riaz & Sons Holding Ltd](/group/19641) (5 companies)


## Previous names

- C & R Crystal Air Conditioning Ltd (until 30 Sep 2008)



## Officers

| Name | Role | Appointed | Resigned |
|---|---|---|---|
| RIAZ, Mohammad Samir | director | 17 Sep 2003 |  |



## Control

| Name | Nature of control | Notified | Ceased |
|---|---|---|---|
| Mr Mohammad Samir Riaz | ownership-of-shares-75-to-100-percent, voting-rights-75-to-100-percent, right-to-appoint-and-remove-directors | 6 Apr 2016 | 12 May 2017 |
| Riaz & Sons Holding Ltd | ownership-of-shares-75-to-100-percent, voting-rights-75-to-100-percent, right-to-appoint-and-remove-directors | 12 May 2017 |  |



## Accounts

| Year ended | Net assets | Cash | Employees |
|---|---|---|---|
| 31 Mar 2025 | £224,713 | £327,340 | 16 |
| 31 Mar 2024 | £256,616 | £104,457 | 16 |
| 31 Mar 2023 | £268,493 | £88,401 | 16 |
| 31 Mar 2022 | £258,470 | £171,461 | 16 |
| 31 Mar 2021 | £248,560 | £97,112 | 16 |
| 31 Mar 2020 | £301,568 | £218,576 | 15 |
| 31 Mar 2019 | £166,886 | £141,968 | 16 |
| 31 Mar 2018 | £51,812 | £116,595 | 16 |
| 31 Mar 2017 | £5,914 | £422,150 | 23 |



## Owned by

Crystal Sigma Ltd → [Riaz & Sons Holding Ltd](/company/10768072)




## Directors' other companies

- [RIAZ, Mohammad Samir](/person/6179259) - director at [Little Bidder Limited](/company/14231496)