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Other human health activities · Welwyn Garden City, Herts

Spark Therapeutics UK

Spark Therapeutics UK Ltd

Loss-makingCash down 76%Turnover up 78%ActiveLatest figures: 2023Filed as a small companyCompany only10 years on the register

Private limited company registered in Welwyn Garden City, classed under “Other human health activities”.

Headline figures

FY to Dec 2023 · Company only

Turnover

For subscribers

Profit after tax

−£64.9k

Net assets

For subscribers

Cash

For subscribers

Employees

For subscribers

Retained reserves

For subscribers

What the numbers say

4 findings from the figures, in plain English

Written by rules from the figures on this page. Not a forecast or a credit opinion.

History

Pro
£20222023
Profit after tax−£64.9k
Turnover
Net assets
Cash
Employees
Retained reserves

Every figure for all 2 years

“—” means we did not find the figure in a source; it is never filled with an estimate.

Balance sheet and ratios

From the filed balance sheets · £

Balance sheet20222023
Current assets
of which debtors
of which cash
Creditors due within a year
Net current assets
Net assets
Ratios
Profit marginProfit after tax as a share of turnover
Return on equityProfit after tax as a share of net assets
Current ratioCurrent assets for every £1 owed within a year
Cash ratioCash for every £1 owed within a year
Creditors to assetsEverything owed to creditors as a share of fixed plus current assets
Turnover per employeeTurnover divided by average staff
Debtor daysDays of turnover owed by customers at the year end

6 balance-sheet lines and 7 ratios, every year

A ratio appears only for years where every line it needs was filed. Lines are as tagged in the accounts; nothing is added up or estimated.

Timeline

Checked 2026-10-27

  1. Accounts
    Accounts for a small company made up to 31 December 2025
  2. Accounts
    Accounts for a small company made up to 31 December 2024
  3. Directors
    Termination of appointment of Michael Anton Retterath as a director on 15 December 2025
  4. Directors
    Appointment of Mrs Danielle Lisa Loewenstein as a director on 1 October 2025
  5. Directors
    Appointment of Mr Scott Davis as a secretary on 1 October 2025
  6. Address
    Registered office address changed from Stafford House Blackbrook Park Ave Taunton TA1 2PX United Kingdom to 6 Shire Park 6 Falcon Way Welwyn Garden City Herts AL7 1TW on 28 Octo…
  7. Directors
    Appointment of Mr Scott Davis as a director on 1 October 2025
  8. Accounts
    Accounts for a small company made up to 31 December 2023
  9. Directors
    Termination of appointment of Cynthia Pussinen as a director on 1 November 2022
  10. Directors
    Termination of appointment of Norose Company Secretarial Services Limited as a secretary on 24 April 2024
  11. Accounts
    Accounts for a small company made up to 31 December 2022
  12. Address
    Registered office address changed from 3 More London Riverside, London, SE1 2AQ, England to Stafford House Blackbrook Park Ave Taunton TA1 2PX on 5 May 2023
  13. 24 earlier
    1. Accounts
      Full accounts made up to 31 December 2021
    2. Accounts
      Full accounts made up to 31 December 2020
    3. Directors
      Appointment of Michael Anton Retterath as a director on 25 April 2022
    4. Directors
      Appointment of Cynthia Pussinen as a director on 25 April 2022
    5. Directors
      Termination of appointment of Joseph W. La Barge as a director on 25 April 2022
    6. Directors
      Termination of appointment of Ron Mammen Philip as a director on 25 April 2022
    7. Notice
      Compulsory strike-off action has been discontinued
    8. Notice
      First Gazette notice for compulsory strike-off
    9. Accounts
      Full accounts made up to 31 December 2019
    10. Directors
      Appointment of Ron Mammen Philip as a director on 17 December 2019
    11. Directors
      Termination of appointment of Stephen Webster as a director on 17 December 2019
    12. Accounts
      Accounts for a small company made up to 31 December 2018
    13. Directors
      Termination of appointment of John Paul Furey as a director on 1 January 2019
    14. Directors
      Appointment of Mr Joseph La Barge as a director on 11 December 2018
    15. Accounts
      Full accounts made up to 31 December 2017
    16. Directors
      Appointment of Norose Company Secretarial Services Limited as a secretary on 12 April 2017
    17. Directors
      Termination of appointment of Radius Commercial Services Limited as a secretary on 12 April 2017 (and 1 more like it since 5 June 2017)
    18. Address
      Registered office address changed from Floor 11, Whitefriars Lewins Mead, Bristol, BS1 2NT, United Kingdom to Stafford House Blackbrook Park Ave Taunton TA1 2PX on 5 June 2017
    19. Directors
      Appointment of Mr John Paul Furey as a director on 12 April 2017
    20. Directors
      Termination of appointment of Joseph W. La Barge as a director on 12 April 2017
    21. Filing
      Resolutions
    22. Name
      Change of name notice
    23. Accounts
      Current accounting period extended from 31 August 2017 to 31 December 2017
    24. Incorporation
      Incorporation

From the Companies House filing history. Routine confirmation statements are left out, and a run of the same filing is shown once.

Questions people ask

›What does Spark Therapeutics UK do?

Private limited company registered in Welwyn Garden City, classed under “Other human health activities”.

›How much turnover does Spark Therapeutics UK make?

Answered in the full report

›Is Spark Therapeutics UK profitable?

No: it made a loss after tax of £64.9k in the year to 31 December 2023, its latest filed accounts.

›How many people work at Spark Therapeutics UK?

Answered in the full report

›Who runs and owns Spark Therapeutics UK?

Its directors are Scott Davis, Scott Davis, Danielle Lisa Loewenstein. Its owners are shown to subscribers.

›Where is Spark Therapeutics UK based?

Its registered office is 6 Shire Park, 6 Falcon Way, Welwyn Garden City, Herts, AL7 1TW, in Welwyn Garden City, Herts.

›When was Spark Therapeutics UK founded?

Spark Therapeutics UK Ltd was incorporated on 3 August 2016.

›Is Spark Therapeutics UK still trading?

The register lists Spark Therapeutics UK Ltd as active.

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