Director profile

Alasdair Alan RYDER

British flagNationality British
Born September 1961 · Age 64
Net worth
0 of 0 controlled (PSC) with accounts
Active companies
60 current appointments
Properties
across controlled companies
Charges
active of 235 total

Snapshot

Alasdair Alan RYDER is currently associated with 60 active companies. 94 active charges were identified across linked companies.

0

properties identified

94

active charges / mortgages

0

active court cases

60

linked companies

Net worth by industry

No filed accounts available to break down net worth.

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Ownership sitemap

Holding structure & control derived from Companies House PSC filings for Alasdair Alan RYDER.

60 companies· 17 holding companies· 4 ownership levels
AR

Alasdair Alan RYDER

Director profile

60 active appointments

HV ENERGY SYSTEMS LTD

director · Construction & Trades

Director for under a year

Owned by Rsk Environment Limited · 75–100% No control Holding · 1

Net worth

£9.0M

Cash

£10M

Property

1

Parent owns 75–100%

HIGH VOLTAGE ENERGY SYSTEMS LTD

director · Dormant Companies

Director for under a year

No control

Net worth

—

Cash

—

Property

0

DEANS CIVIL ENGINEERING LIMITED

director · Construction & Trades

Director for 2 years

Owned by Ares Management Limited · 75–100% No control Holding · 2

Net worth

£7.2M

Cash

—

Property

0

6 active charges
Parent owns 75–100%

TARPAVE LIMITED

director · Construction & Trades

Director for 2 years

No control

Net worth

£845k

Cash

£329k

Property

0

4 active charges
Parent owns 75–100%

DEANS DEVELOPMENTS (KILBARCHAN) LTD

director · Professional Services

Director for 2 years

No control

Net worth

£167k

Cash

£165k

Property

0

4 active charges

AJ ENGINEERING & CONSTRUCTION SERVICES LIMITED

director · Construction Materials & Metal Products

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control Holding · 1

Net worth

£6.5M

Cash

£2.7M

Property

0

5 charges
Parent owns 75–100%

NORTHERN ENGINEERING & WELDING CO. LIMITED

director · Construction Materials & Metal Products

Director for 1 year

No control

Net worth

£1.5M

Cash

£1.2M

Property

0

1 charge

EB7 LIMITED

director · Architecture, Engineering & Surveying

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control Holding · 1

Net worth

£3.5M

Cash

£214k

Property

0

1 active charge
Parent owns 75–100%

EB7 PARTY WALL LIMITED

director · Architecture, Engineering & Surveying

Director for 1 year

No control

Net worth

-£74k

Cash

£15k

Property

0

THE WOODHOUSE PARTNERSHIP LIMITED

director · Business Consultancy

Director for 3 years

Owned by Rsk Environment Limited · 75–100% No control Holding · 1

Net worth

£2.4M

Cash

£276k

Property

0

2 active charges
Parent owns 75–100%

DECISION SUPPORT TOOLS LIMITED

director · Software, SaaS & IT

Director for 3 years

No control

Net worth

£2.2M

Cash

£61k

Property

0

2 active charges

3BM LIMITED

director · Business Consultancy

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control Holding · 1

Net worth

£2.4M

Cash

£177k

Property

1

1 active charge
Parent owns 75–100%

FUSION PROJECT MANAGEMENT LIMITED

director · Business Consultancy

Director for 1 year

No control

Net worth

£2.9M

Cash

£352k

Property

1

1 active charge

N-ABLE HOLDINGS LTD

director · Holding Companies

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control Holding · 1

Net worth

£1.0M

Cash

£2k

Property

0

1 active charge
Parent owns 75–100%

N-ABLE PROPERTY SERVICES LTD

director · Construction & Trades

Director for 1 year

No control Holding · 2

Net worth

£571k

Cash

£117k

Property

0

1 active charge
Parent owns 75–100%

KEEGANS LIMITED

director · Professional Services

Director for 1 year

No control

Net worth

£1.9M

Cash

£817k

Property

0

1 active charge
Parent owns 75–100%

ECD ARCHITECTS LTD

director · Architecture, Engineering & Surveying

Director for 1 year

No control

Net worth

£1.4M

Cash

£522k

Property

0

1 active charge

BATEMAN SKIPS LTD

director · Waste, Recycling & Environmental Services

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control Holding · 1

Net worth

-£609k

Cash

—

Property

4

2 active charges
Parent owns 75–100%

AFFORDABLE SKIP HIRE BRISTOL LIMITED

director · Waste, Recycling & Environmental Services

Director for 2 years

No control

Net worth

£279k

Cash

£318k

Property

0

2 active charges

AXIS WELL TECHNOLOGY GROUP LIMITED

director · Professional Services

Director for 3 years

Owned by Rsk Environment Limited · 75–100% No control Holding · 2

Net worth

—

Cash

—

Property

0

2 active charges
Parent owns 75–100%

AXIS WELL TECHNOLOGY MANAGEMENT LIMITED

director · Professional Services

Director for 3 years

No control Holding · 1

Net worth

—

Cash

—

Property

0

3 active charges
Parent owns 75–100%

AXIS WELL TECHNOLOGY LIMITED

director · Professional Services

Director for 3 years

No control

Net worth

—

Cash

—

Property

0

4 active charges
Parent owns 75–100%

AXIS WELL TECHNOLOGY INTERNATIONAL LIMITED

director · Professional Services

Director for 3 years

No control

Net worth

—

Cash

—

Property

0

2 active charges

OCTAVIUS INFRASTRUCTURE LTD.

director · Construction & Trades

Director for under a year

No control Holding · 1

Net worth

—

Cash

—

Property

1

4 charges
Parent owns 75–100%

NAVITAS ENGINEERING GROUP LTD.

director · Business Support Services

Director for under a year

No control Holding · 1

Net worth

—

Cash

—

Property

0

2 charges
Parent owns 75–100%

PERMARAIL LIMITED

director · Business Support Services

Director for under a year

No control

Net worth

—

Cash

—

Property

0

2 charges

PD & MS ENERGY (ABERDEEN) LIMITED

director · Business Support Services

Director for 2 years

Owned by Ares Management Limited · 75–100% No control Holding · 2

Net worth

—

Cash

—

Property

0

5 active charges
Parent owns 75–100%

OPTIMUS PLUS (ABERDEEN) LIMITED

director · Business Consultancy

Director for 2 years

No control

Net worth

£845k

Cash

£186k

Property

0

2 active charges
Parent owns 75–100%

SYNERGIE ENVIRON LIMITED

director · Professional Services

Director for 2 years

No control

Net worth

-£236k

Cash

£139k

Property

0

4 active charges

TOPHAM HOLDCO LIMITED

director · Holding Companies

Director for under a year

No control Holding · 1

Net worth

—

Cash

—

Property

0

Parent owns 75–100%

TOPHAM MIDCO LIMITED

director · Holding Companies

Director for under a year

No control Holding · 1

Net worth

—

Cash

—

Property

0

1 charge
Parent owns 75–100%

TOPHAM BIDCO LIMITED

director · Holding Companies

Director for under a year

No control Holding · 1

Net worth

—

Cash

—

Property

0

2 charges
Parent owns 75–100%

REIGATE ASSET LEASING LTD.

director · Vehicle & Equipment Rental

Director for under a year

No control

Net worth

—

Cash

—

Property

0

2 charges

DEANS HOLDCO LIMITED

director · Holding Companies

Director for 2 years

Owned by Ares Management Limited · 50–75% No control

Net worth

£26M

Cash

—

Property

0

5 active charges

DWD PROPERTY AND PLANNING LIMITED

director · Professional Services

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£7.7M

Cash

£624k

Property

0

2 active charges

W.CROWDER & SONS LIMITED

director · Wholesale

Director for 3 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£4.9M

Cash

£744k

Property

7

2 active chargesNo ICO reg

KENDALL KINGSCOTT LIMITED

director · Architecture, Engineering & Surveying

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£3.9M

Cash

£1.1M

Property

4

1 active charge

APOLLO STRATEGIC COMMUNICATIONS LIMITED

director · Business Consultancy

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£2.7M

Cash

£530k

Property

0

1 active charge

AURORA HEALTH PHYSICS SERVICES LIMITED

director · Professional Services

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£2.4M

Cash

£203k

Property

0

2 active charges

FLUID SEALING & ENGINEERING LIMITED

director · Construction & Trades

Director for under a year

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£2.3M

Cash

£2.1M

Property

0

HOMER BURGESS LIMITED

director · Construction Materials & Metal Products

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£1.4M

Cash

£491k

Property

0

6 active charges

KIRTON WATER TREATMENT SERVICES LIMITED

director · Furniture, Consumer Goods & Medical Devices

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

£688k

Cash

£461k

Property

1

2 active charges

RSK INVESTMENTS (NEWCASTLE) LLP

llp-designated-member

Director for 2 years

No control

Net worth

£424k

Cash

£62

Property

0

ARA ARCHITECTURE LIMITED

director · Architecture, Engineering & Surveying

Director for 3 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

-£19k

Cash

—

Property

0

2 active charges

CALIBRATE INC LTD

director · Architecture, Engineering & Surveying

Director for 3 years

Owned by Calibrate Group Limited · 75–100% No control

Net worth

-£2.3M

Cash

—

Property

0

2 active charges

1ST INRAIL LIMITED

director · Construction & Trades

Director for 3 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

1

2 active charges

ELSYM INSTALLATIONS LIMITED

director · Engineering, Machinery & Electronics

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

1 active charge

FALKLANDS CONSERVATION

director · Professional Services

Director for 2 years

No control

Net worth

—

Cash

—

Property

1

GLOBAL RAIL CONSTRUCTION LIMITED

director · Business Support Services

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

1

1 active charge

LARSEN WATER MANAGEMENT LTD

director · Architecture, Engineering & Surveying

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

3 active charges

NAVITAS ENGINEERING LTD.

director · Construction & Trades

Director for under a year

No control

Net worth

—

Cash

—

Property

0

2 charges

PD & MS (DUNDEE) LIMITED

director · Construction Materials & Metal Products

Director for 2 years

No control

Net worth

—

Cash

—

Property

0

6 charges

PD&MS HOLDINGS LIMITED

director · Other

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

11 charges

PEGASYS LIMITED

director · Business Consultancy

Director for 1 year

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

1 active charge

PROJECT IRES BIDCO LIMITED

director · Other

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

6 charges

PROJECT IRES TOPCO LIMITED

director · Other

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

5 charges

R.J.T. EXCAVATIONS LIMITED

director · Construction & Trades

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

6 active charges

RSK NATURE REPAIR LIMITED

director · Professional Services

Director for 1 year

Owned by Rsk Environment Limited · 50–75% No control

Net worth

—

Cash

—

Property

1

2 active charges

SUSTAINABLE AQUAFARMS LIMITED

director · Fishing & Aquaculture

Director for 2 years

Owned by Rsk Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

1

2 active charges

TOPHAM INVESTCO LIMITED

director · Holding Companies

Director for under a year

Owned by RSK Environment Limited · 75–100% No control

Net worth

—

Cash

—

Property

0

Ownership percentages are the control bands declared in Companies House PSC filings (e.g. 75–100% shareholding). Holding companies sit above the subsidiaries they control; dissolved companies are excluded.

Showing the first 60 companies by ownership.

Historical appointments

15 total

VIRTUS ENERGY LIMITED

director · resigned Mar 2026

Resigned

WE ARE BRANDNEW LTD

director · resigned Aug 2025

Resigned
View all 15 historical appointments Click here Unlock the full history of resigned directorships and past appointments for Alasdair Alan RYDER.
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