AMS BUILD GROUP LTD: Group Structure & Subsidiaries
Executive Summary
AMS BUILD GROUP LTD (company number 14308069) operates as an active holding company incorporated in England and Wales on 19 August 2022 under SIC code 64209 (Activities of other holding companies not elsewhere classified). The group comprises five wholly controlled direct operating subsidiaries engaged across plant hire, civil contracting, block paving, and concrete supplies. Ultimate beneficial ownership sits equally between Mr Andrew Lee Sullivan and Mr Michael Donald Ellis Sullivan, who each hold between 25% and 50% of the voting rights and share capital in the parent entity.
What a Standard Companies House Search Shows
When a corporate finance solicitor, credit manager, or anti-money laundering (AML) onboarding officer inspects AMS BUILD GROUP LTD via the statutory register at Companies House, the search index points solely upwards. It confirms the incorporation date, filing history, registered office, accounts status, and the immediate controllers recorded under Part 21A of the Companies Act 2006.
Typing the name of a holding entity into the public index does not list the businesses it controls. Companies House indexes records strictly on an entity-by-entity basis. The register reports who exerts control over AMS BUILD GROUP LTD, but it provides no downward index of the operating companies held beneath it.
The public filing for AMS BUILD GROUP LTD records two individual Persons with Significant Control (PSCs):
- Mr Andrew Lee Sullivan: Notified on 19 August 2022. Ownership of shares (25% to 50%) and voting rights (25% to 50%). Country of residence England, British nationality.
- Mr Michael Donald Ellis Sullivan: Notified on 8 December 2022. Ownership of shares (25% to 50%) and voting rights (25% to 50%). Country of residence England, British nationality.
Both individuals are also active directors on the board, having been appointed at incorporation on 19 August 2022. Mr Andrew Lee Sullivan was born in September 1984, and Mr Michael Donald Ellis Sullivan was born in August 1986.
A conventional search ends here. Without independent verification, an investigator examining the holding entity cannot see the trading businesses, assets, or trading liabilities situated across the broader enterprise.
Downstream Group Mapping via Reverse PSC Search
To discover downstream subsidiaries, analysts cannot rely on standard search bars. While filed group accounts can outline corporate holdings, small or medium-sized groups frequently file micro-entity or filleted financial statements under the exemptions in sections 382 to 384 of the Companies Act 2006. These filings often omit an exhaustive list of subsidiaries or are lodged up to nine months after the financial year ends.
Corp Intel overcomes this structural limitation by aggregating the complete UK Person with Significant Control register and executing a reverse PSC lookup. By querying every live corporate registration in England, Wales, Scotland, and Northern Ireland where AMS BUILD GROUP LTD is declared as a corporate PSC (a registrable relevant legal entity, or RLE), the downstream corporate family is mapped in real time.
This reverse query establishes that AMS BUILD GROUP LTD acts as the direct parent entity to five operating subsidiaries. Each subsidiary is actively registered and reports AMS BUILD GROUP LTD in the highest statutory ownership bracket (75% to 100% of shares and voting power).
| Company Name | Company Number | Status | Incorporated | Control Band | Own Subsidiaries |
| :--- | :--- | :--- | :--- | :--- | :--- |
| (AMS) LBP PLANT HIRE LTD | 14687724 | Active | 24/02/2023 | 75-100% shares | 0 |
| AMS BUILD LTD | 09635016 | Active | 11/06/2015 | 75-100% shares | 0 |
| LINCOLNSHIRE BLOCK PAVERS LIMITED | 04815143 | Active | 30/06/2003 | 75-100% shares | 0 |
| (AMS) LINCOLNSHIRE BLOCK PAVERS LTD | 14691998 | Active | 27/02/2023 | 75-100% shares | 0 |
| AMS CONCRETE LTD | 16214405 | Active | 28/01/2025 | 75-100% shares | 0 |
Analysis of Subsidiary Portfolio
The downstream structure demonstrates how the group is organised across specialised divisions:
1. Core Construction and Contracting: AMS BUILD LTD (09635016) represents the group's longest-standing operational company under the AMS branding, incorporated in June 2015.
2. Surface and Groundworks Operations: LINCOLNSHIRE BLOCK PAVERS LIMITED (04815143) is the oldest legal entity in the cluster, incorporated in June 2003, complemented by (AMS) LINCOLNSHIRE BLOCK PAVERS LTD (14691998), incorporated in February 2023.
3. Plant and Machinery: (AMS) LBP PLANT HIRE LTD (14687724) isolates heavy machinery, fleet assets, and equipment hire within a distinct ring-fenced legal vehicle.
4. Materials Supply: AMS CONCRETE LTD (16214405) was incorporated in January 2025, adding dedicated batching, delivery, or concrete trade operations to the network.
None of the five subsidiaries report third-tier subsidiaries (second_tier_count: 0). The group maintains a flat corporate hierarchy, with the holding entity exercising direct single-tier parentage across all five operational companies.
Upstream Chain and Ultimate Beneficial Ownership (UBO)
Under Regulation 5 of the Money Laundering, Terrorist Financing and Transfer of Funds Regulations 2017 (SI 2017/692), regulated institutions must determine the ultimate beneficial owners of corporate bodies before entering into business relationships. A beneficial owner is defined as any individual who ultimately owns or controls, directly or indirectly, more than 25% of the shares or voting rights in the entity.
Tracing the ownership upwards from the operational trading vehicles yields a definitive legal chain:
[Mr Andrew Lee Sullivan] (25-50%) [Mr Michael Donald Ellis Sullivan] (25-50%)
\ /
\ /
[AMS BUILD GROUP LTD] (Holding Co - 14308069)
|
+--------------------------+--------------------------+
| | | | |
(100%) (100%) (100%) (100%) (100%)
| | | | |
(AMS) LBP AMS LINCOLNSHIRE (AMS) LBP AMS
PLANT HIRE BUILD BLOCK PAVERS LIMITED CONCRETE
LTD LTD LIMITED LTD LTD
(14687724) (09635016) (04815143) (14691998) (16214405)
There are no intermediary parent holding entities, offshore arrangements, nominee shareholdings, or discretionary corporate trusts above AMS BUILD GROUP LTD. Control stops with Mr Andrew Lee Sullivan and Mr Michael Donald Ellis Sullivan. Together, their combined shareholding covers between 50% and 100% of the parent company, giving them joint overall control over group operations, board appointments, and capital allocation.
Practical Due Diligence Framework for Corporate Groups
When assessing a company operating within an affiliated corporate family, evaluating only the legal entity that submits a tender or signs a contract presents significant commercial risk. Corporate structures frequently compartmentalise assets into one subsidiary while concentrating operational liabilities, site risks, or commercial debt in others.
Professional advisers should follow this four-stage framework when conducting due diligence on multi-company organisations:
1. Contractual Entity Verification: Match the counterparty on the contract to the exact entity number on the register. For example, ensure that work carried out by Lincolnshire Block Pavers is contracted under company 04815143 or 14691998 as intended, rather than the non-trading holding entity.
2. Cross-Entity Security and Encumbrances: Check whether lenders have registered floating charges over the entire undertaking or specific assets of subsidiaries. Conducting a thorough company charge check ensures you detect debentures, fixed charges over plant equipment, or cross-guarantees between sister companies.
3. Solvency and Credit Ring-Fencing: Assess intercompany loan balances and potential financial dependencies. If an operational subsidiary faces insolvency proceedings, an administrator could recall intercompany loan accounts due from sister subsidiaries or the parent entity, destabilising adjacent businesses.
4. Statutory Filing Compliance: Review recent filings across every subsidiary to verify that annual accounts, confirmation statements, and PSC updates are lodged uniformly. Staggered or overdue filings in one trading arm often indicate administrative or cash-flow strain before it appears at the group level.
Worked Scenario: Subcontracting and Asset Exposure
Consider a commercial main contractor engaging the group for a major groundworks and surfacing package. The commercial manager receives documentation bearing the logo of "AMS Build" but issuing invoices under LINCOLNSHIRE BLOCK PAVERS LIMITED (04815143).
If the main contractor only vets AMS BUILD GROUP LTD (14308069), they are examining a holding entity with SIC code 64209 that possesses no direct fleet, no direct ground staff, and no operational insurances. If a site incident occurs or plant machinery breaks down, any claim or set-off against the holding company would fail for lack of privity of contract.
By executing a reverse PSC group mapping:
- The legal team discovers that the plant equipment is actually owned and hired out through (AMS) LBP PLANT HIRE LTD (14687724).
- The team confirms whether the parent company or trading subsidiary will provide a parent company guarantee (PCG).
- Credit managers can structure performance bonds and cross-corporate warranties that bind both the operating subsidiary and the asset-holding parent.
Corporate Group Intelligence vs Manual Register Lookups
Historically, mapping corporate groups without dedicated intelligence tools has been a slow and error-prone process. A corporate finance paralegal or compliance officer had to manually download annual reports from WebCHeck, read through note disclosures on principal subsidiaries, cross-reference trade directories, and separately check each subsidiary's register entries.
This manual method encounters serious limitations:
- Outdated Annual Accounts: Disclosures in filed accounts are historic, reflecting the group structure as it stood on the balance sheet date up to nine months earlier. Any subsidiary established, acquired, or dissolved in the intervening period is missed.
- Filing Exemptions: Small companies and medium-sized groups frequently file filleted accounts that omit detailed subsidiary schedules altogether, pursuant to the provisions of the Companies Act 2006.
- Dormant and Newly Formed Entities: New subsidiaries incorporated between reporting periods (such as AMS CONCRETE LTD in 2025) do not appear in prior annual accounts.
Corp Intel resolves these visibility gaps by indexing the statutory PSC register nationwide. When a group incorporates a subsidiary or transfers ownership, our systems capture the registrable relevant legal entity notifications as they are lodged, presenting an accurate, tier-by-tier picture of corporate group structures.
Continuous Group Monitoring and Risk Management
Group structures rarely remain static. Directors alter capital allocations, introduce holding tiers, novate contracts, or register new banking charges as operational requirements evolve. A transaction completed on current registers can be exposed to unmonitored risk if a subsidiary enters restructuring or registers new secured debt months down the line.
Legal practitioners and credit underwriters should establish automated alerts to track corporate events across all group subsidiaries simultaneously. Setting up free company monitoring ensures your risk team receives immediate notification if any entity within the AMS BUILD GROUP network registers a director resignation, amends its PSC register, files accounts, or records an encumbrance.
Order a Complete Corporate Org Chart
When presenting corporate group hierarchies to credit committees, prospective buyers, investment boards, or banking compliance officers, text-based summaries often fail to convey operational relationships clearly. A structured visual organogram maps ownership percentages, subsidiary tiers, and director appointments into a defensible briefing document.
Corp Intel provides a comprehensive [Corporate Org Chart](/corporate-org-chart) for £25. Sourced directly from the official Register of Companies and the statutory PSC register, this dated PDF report provides an immediate, end-to-end blueprint of the entire group network, including all direct and indirect subsidiaries, control brackets, and ultimate beneficial owners.
For Corporate Lawyers, Lenders and Credit Teams
Verifying complete group structures is an indispensable step during corporate client onboarding, debt syndication, acquisition due diligence, and high-value trade credit decisions. Relying on self-declared org charts from counterparties leaves financial institutions and legal advisers vulnerable to undisclosed subsidiary exposures, undisclosed debentures, and compliance breaches under MLR 2017. Obtain a verified, point-in-time visual breakdown of this group by downloading the [Corporate Org Chart](/corporate-org-chart) before completing your transaction.
FAQ
What is the primary business activity of AMS BUILD GROUP LTD?
AMS BUILD GROUP LTD is registered under SIC code 64209 as a non-trading holding company. Its operations are conducted through its five wholly controlled subsidiaries, which span construction services, plant machinery hire, block paving, and concrete supplies.
Who is the ultimate beneficial owner of the AMS BUILD group?
Ultimate beneficial ownership is held equally between Mr Andrew Lee Sullivan and Mr Michael Donald Ellis Sullivan. Each holds between 25% and 50% of the shares and voting rights in the parent holding company, AMS BUILD GROUP LTD.
How many subsidiaries belong to AMS BUILD GROUP LTD?
According to the statutory PSC register, AMS BUILD GROUP LTD directly controls five active UK subsidiaries: (AMS) LBP PLANT HIRE LTD, AMS BUILD LTD, LINCOLNSHIRE BLOCK PAVERS LIMITED, (AMS) LINCOLNSHIRE BLOCK PAVERS LTD, and AMS CONCRETE LTD.
Can I find a list of a parent company's subsidiaries on Companies House?
No. A standard search on Companies House only displays the target company's immediate directors, filings, and upstream PSC controllers. Companies House does not provide a reverse search function showing which downstream companies a holding company controls. Mapping subsidiaries requires a reverse PSC register search.
Are there any second-tier subsidiaries in the group?
No. None of the five subsidiaries hold shares in further downstream companies. The group structure is completely flat, with all five operating businesses held directly by the parent company.
Why is reverse PSC search more accurate than inspecting group accounts?
Group accounts are only filed annually and may omit subsidiaries if the group qualifies for small company filing exemptions under sections 382 to 384 of the Companies Act 2006. A reverse PSC search indexes real-time statutory ownership filings, identifying newly formed entities and changes in control as soon as they are registered.