WL

WATERWHELM LTD

Active

Company number SC614848

Edinburgh, United Kingdom · Incorporated 28 November 2018

Suite 2, Ground Floor Orchard Brae House, 30 Queensferry Road, Edinburgh, EH4 2HS, United Kingdom

Last updated on 19 September 2026

Water collection, treatment and supply · SIC 36000

Engineering design activities for industrial process and production · SIC 71121

Engineering related scientific and technical consulting activities · SIC 71122

Other research and experimental development on natural sciences and engineering · SIC 72190


Status
Active
Company age
7 years
Company type
Private limited
Accounts
Up to date
Total raised
£1,708,426
Shares allotted
28,838
Latest round
13 March 2025

Company overview

WATERWHELM LTD is an active private limited company incorporated on 28 November 2018 and registered in Scotland. Its registered office is at Suite 2, Ground Floor Orchard Brae House, 30 Queensferry Road, Edinburgh, EH4 2HS, United Kingdom. Its principal activities are water collection, treatment and supply (SIC 36000), engineering design activities for industrial process and production (SIC 71121), engineering related scientific and technical consulting activities (SIC 71122) and other research and experimental development on natural sciences and engineering (SIC 72190).

Dr. Alireza Abbassi Monjezi is a person with significant control who holds 50-75% of the shares and voting rights. The board consists of three British directors: ABBASSI MONJEZI, Alireza, Dr. (appointed 28 November 2018), VOLANTHEN, Mark, Dr (appointed 1 October 2024) and RAJA, Akta Mehendra (appointed 6 March 2025). MBM SECRETARIAL SERVICES LIMITED acts as corporate secretary. One former officer has previously served the company.

There are no registered charges against the company, no history of insolvency, and it has never been through liquidation. Its most recent total-exemption-full accounts, made up to 30 November 2025, were filed on 8 April 2026. The next accounts are due by 31 August 2027. The latest confirmation statement was made up to 27 November 2025. The next is due by 11 December 2026. Companies House holds 43 filings for this company, most recently an accounts filing on 8 April 2026.

Compliance

Annual accounts Up to date
Last filed
30 November 2025
Next due
31 August 2027
12 months left
Confirmation statement Up to date
Last filed
27 November 2025
Next due
11 December 2026
3 months left

Financial snapshot

Last accounts type
Total Exemption Full
Period end
30 November 2025

Fixed assets
Current assets
Net current assets/liabilities
Total assets less current liabilities
Creditors (due within one year)
Creditors (due after one year)
Net assets/liabilities
Capital and reserves

Financial trend
Year ended Fixed assets Current assets Net assets/liabilities Change

Capital table

Updated on 19 September 2026
  • ALIREZA ABBASSI MONJEZI (61.0%)
  • ABBAS SHARIF ASKARI (6.0%)
  • RAZAK AWUDULAI (6.0%)
  • MOHAMMAD TABRIZIAN (5.4%)
  • FACTOR E VENTURES PBC (5.1%)
  • HAIDAR BILAL (3.8%)
  • KATAPULT OCEAN DEEP BLUE FUND 1 AS (2.9%)
  • OLD COLLEGE CAPITAL LP (2.5%)
  • JOHN THOMSON (2.4%)
  • MEGHDAD TABRIZIAN (1.8%)
  • NET ZERO TECHNOLOGY CENTRE LIMITED (1.3%)
  • OLD COLLEGE CAPITAL HOLDINGS LIMITED (0.9%)
  • IAN DEREK MARCHANT (0.5%)
  • NIGEL ANTHONY ELLIS (0.2%)
Total shares
152,553
Nominal value
£1.526
AI confidence
(—%)
Data quality
-

Share classes

Class Allocated shares Currency Nominal value Voting Dividend Transfer Anti-dilution
ORDINARY 131,997 GBP £1.320
PRE-SERIES A PREFERRED ORDINARY 20,556 GBP £0.206
Total 152,553

Shareholders

Shareholder Share class Shares Shareholding Votes Voting
ABBAS SHARIF ASKARI ORDINARY 9,198 6.03% 9,198 6.03%
ALIREZA ABBASSI MONJEZI ORDINARY 93,127 61.05% 93,127 61.05%
HAIDAR BILAL ORDINARY 5,773 3.78% 5,773 3.78%
IAN DEREK MARCHANT ORDINARY 645 0.42% 645 0.42%
JOHN THOMSON ORDINARY 1,413 0.93% 1,413 0.93%
MEGHDAD TABRIZIAN ORDINARY 2,819 1.85% 2,819 1.85%
MOHAMMAD TABRIZIAN ORDINARY 8,250 5.41% 8,250 5.41%
NIGEL ANTHONY ELLIS ORDINARY 193 0.13% 193 0.13%
OLD COLLEGE CAPITAL HOLDINGS LIMITED ORDINARY 1,381 0.91% 1,381 0.91%
RAZAK AWUDULAI ORDINARY 9,198 6.03% 9,198 6.03%
FACTOR E VENTURES PBC PRE-SERIES A PREFERRED ORDINARY 7,759 5.09% 7,759 5.09%
IAN DEREK MARCHANT PRE-SERIES A PREFERRED ORDINARY 145 0.10% 145 0.10%
JOHN THOMSON PRE-SERIES A PREFERRED ORDINARY 2,295 1.50% 2,295 1.50%
KATAPULT OCEAN DEEP BLUE FUND 1 AS PRE-SERIES A PREFERRED ORDINARY 4,496 2.95% 4,496 2.95%
NET ZERO TECHNOLOGY CENTRE LIMITED PRE-SERIES A PREFERRED ORDINARY 1,939 1.27% 1,939 1.27%
NIGEL ANTHONY ELLIS PRE-SERIES A PREFERRED ORDINARY 43 0.03% 43 0.03%
OLD COLLEGE CAPITAL LP PRE-SERIES A PREFERRED ORDINARY 3,879 2.54% 3,879 2.54%
Total 152,553 100% 152,553 100%

Officers

RA
6 March 2025
VM
1 October 2024
MS
MBM SECRETARIAL SERVICES LIMITED
Corporate Secretary
28 August 2020
28 November 2018
CC
CUNNINGHAM, Colin John, Dr.
Director · Resigned
1 October 2019

Persons with significant control

PS
Dr. Alireza Abbassi Monjezi
Born January 1989
Ownership Of Shares 50 To 75 Percent
Voting Rights 50 To 75 Percent
28 November 2018

Funding

9 funding rounds
13 March 2025
PRE-SERIES A PREFERRED ORDINARY · 2,295 shares allotted
£147,890
7 March 2025
PRE-SERIES A PREFERRED ORDINARY · 11,826 shares allotted
£762,067
6 March 2025
PRE-SERIES A PREFERRED ORDINARY · 1,939 shares allotted
£99,955
6 March 2025
PRE-SERIES A PREFERRED ORDINARY · 4,496 shares allotted
£289,722
23 January 2024
ORDINARY · 6,211 shares allotted
£333,841
12 May 2023
ORDINARY · 1,381 shares allotted
£49,978
14 February 2023
ORDINARY · 690 shares allotted
£24,971
15 September 2020
Shares allotted · 0 shares allotted
4 December 2019
Shares allotted · 0 shares allotted
Total (9 rounds, 28,838 shares)
£1,708,426

Filing history

Accounts With Accounts Type Total Exemption Full
Accounts
8 April 2026 View
Confirmation Statement With Updates
Confirmation Statement
3 December 2025 View
Accounts With Accounts Type Total Exemption Full
Accounts
4 June 2025 View
Capital Allotment Shares
Capital
17 March 2025 View
Capital Allotment Shares
Capital
11 March 2025 View
Capital Allotment Shares
Capital
11 March 2025 View
Change To A Person With Significant Control
Persons With Significant Control
10 March 2025 View
Capital Allotment Shares
Capital
10 March 2025 View
Memorandum Articles
Incorporation
10 March 2025 View
Resolution
Resolution
10 March 2025 View
Appoint Person Director Company With Name Date
Officers
7 March 2025 View
Resolution
Resolution
12 December 2024 View
Confirmation Statement With Updates
Confirmation Statement
27 November 2024 View
Appoint Person Director Company With Name Date
Officers
16 October 2024 View
Accounts With Accounts Type Total Exemption Full
Accounts
31 January 2024 View
Memorandum Articles
Incorporation
25 January 2024 View
Resolution
Resolution
25 January 2024 View
Capital Allotment Shares
Capital
24 January 2024 View
Second Filing Of Confirmation Statement With Made Up Date
Confirmation Statement
8 January 2024 View
Capital Allotment Shares
Capital
8 January 2024 View
Confirmation Statement
Confirmation Statement
29 November 2023 View
Resolution
Resolution
17 February 2023 View
Capital Allotment Shares
Capital
16 February 2023 View
Accounts With Accounts Type Total Exemption Full
Accounts
19 December 2022 View
Confirmation Statement With No Updates
Confirmation Statement
28 November 2022 View
Accounts With Accounts Type Total Exemption Full
Accounts
13 January 2022 View
Confirmation Statement With No Updates
Confirmation Statement
29 November 2021 View
Termination Director Company With Name Termination Date
Officers
1 October 2021 View
Accounts With Accounts Type Total Exemption Full
Accounts
31 August 2021 View
Change Registered Office Address Company With Date Old Address New Address
Address
9 August 2021 View
Change Corporate Secretary Company With Change Date
Officers
2 August 2021 View
Confirmation Statement With Updates
Confirmation Statement
27 November 2020 View
Accounts With Accounts Type Total Exemption Full
Accounts
27 November 2020 View
Resolution
Resolution
25 September 2020 View
Capital Allotment Shares
Capital
24 September 2020 View
Appoint Corporate Secretary Company With Name Date
Officers
28 August 2020 View
Change Registered Office Address Company With Date Old Address New Address
Address
28 August 2020 View
Capital Alter Shares Subdivision
Capital
13 December 2019 View
Resolution
Resolution
13 December 2019 View
Capital Allotment Shares
Capital
10 December 2019 View
Confirmation Statement With No Updates
Confirmation Statement
6 December 2019 View
Appoint Person Director Company With Name Date
Officers
5 October 2019 View
Incorporation Company
Incorporation
28 November 2018 View

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