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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers
Active 2
  • 1
    O'boyle, Michael Joseph
    Born in August 1960
    Individual (3 offsprings)
    Officer
    icon of calendar 2006-01-17 ~ now
    OF - Director → CIF 0
    Mr Michael Joseph O'boyle
    Born in August 1960
    Individual (3 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    PE - Ownership of voting rights - More than 25% but not more than 50%CIF 0
    PE - Ownership of shares – More than 25% but not more than 50%CIF 0
  • 2
    O'boyle, Paula Janet
    Born in March 1964
    Individual (1 offspring)
    Officer
    icon of calendar 2015-10-08 ~ now
    OF - Director → CIF 0
    O'boyle, Paula Janet
    Individual (1 offspring)
    Officer
    icon of calendar 2006-01-17 ~ now
    OF - Secretary → CIF 0
    Mrs Paula Janet O'boyle
    Born in March 1964
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    PE - Ownership of shares – More than 25% but not more than 50%CIF 0
    PE - Ownership of voting rights - More than 25% but not more than 50%CIF 0
Ceased 2
  • 1
    O'boyle, Sean Daniel
    Civil Engineer born in April 1982
    Individual (1 offspring)
    Officer
    icon of calendar 2006-11-01 ~ 2019-04-05
    OF - Director → CIF 0
    Mr Sean Daniel O'boyle
    Born in April 1982
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2016-04-06 ~ 2022-10-13
    PE - Ownership of shares – More than 25% but not more than 50%CIF 0
    PE - Ownership of voting rights - More than 25% but not more than 50%CIF 0
  • 2
    icon of addressTernion Court, 264-268 Upper Fourth Street, Central Milton Keynes, Bucks
    Active Corporate (1 parent, 242 offsprings)
    Equity (Company account)
    2 GBP2024-03-31
    Officer
    2006-01-17 ~ 2006-01-17
    PE - Nominee Secretary → CIF 0
parent relation
Company in focus

A1 INFRASTRUCTURE AND BUILDING LIMITED

Standard Industrial Classification
41201 - Construction Of Commercial Buildings
Brief company account
Fixed Assets
305,145 GBP2025-01-31
222,813 GBP2024-01-31
Current Assets
126,657 GBP2025-01-31
84,869 GBP2024-01-31
Creditors
Amounts falling due within one year
-91,179 GBP2025-01-31
-109,362 GBP2024-01-31
Net Current Assets/Liabilities
35,478 GBP2025-01-31
-24,493 GBP2024-01-31
Total Assets Less Current Liabilities
340,623 GBP2025-01-31
198,320 GBP2024-01-31
Creditors
Amounts falling due after one year
-116,280 GBP2025-01-31
-99,095 GBP2024-01-31
Net Assets/Liabilities
222,693 GBP2025-01-31
97,675 GBP2024-01-31
Equity
222,693 GBP2025-01-31
97,675 GBP2024-01-31
Average Number of Employees
22024-02-01 ~ 2025-01-31
22023-02-01 ~ 2024-01-31

  • A1 INFRASTRUCTURE AND BUILDING LIMITED
    Info
    Registered number 05677791
    icon of address12 Chelsea Close, Forest Park, Lincoln, Lincolnshire LN6 0XF
    PRIVATE LIMITED COMPANY incorporated on 2006-01-17 (20 years). The company status is Active.
    The last date of confirmation statement was made at 2024-10-14
    CIF 0
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.