David Ranken GAMMON

Total number of appointments 10, 10 active appointments

ROCKSPRING

Correspondence address
Windsor House Station Road, Great Shelford, Cambridge, England, CB22 5NE
Role ACTIVE
director
Date of birth
February 1961
Appointed on
23 August 2025
Nationality
British
Occupation
Business Angel
 
Source data

Average house price in the postcode CB22 5NE £341,000

ZERORISC INC.

Correspondence address
251 Little Falls Drive, City Of Wilmington, Delaware 19808, United States
Role ACTIVE
director
Date of birth
February 1961
Appointed on
8 November 2024
Nationality
British
Occupation
None
 
Source data

RASPBERRY PI HOLDINGS PLC

Correspondence address
194 Cambridge Science Park, Milton Road, Cambridge, United Kingdom, CB4 0AB
Role ACTIVE
director
Date of birth
February 1961
Appointed on
2 June 2024
Nationality
British
Occupation
Company Director
 
Source data

WILD HYDROGEN LTD

Correspondence address
Rockspring 9 Hills Road, Cambridge, Cambridgeshire, England, CB2 1GE
Role ACTIVE
director
Date of birth
February 1961
Appointed on
12 May 2023
Nationality
British
Occupation
Director
 
Source data

THE SUFFOLK SUR MER LIMITED

Correspondence address
152 High Street, Aldeburgh, Suffolk, England, IP15 5AQ
Role ACTIVE
director
Date of birth
February 1961
Appointed on
13 September 2021
Nationality
British
Occupation
Director
 
Source data

Average house price in the postcode IP15 5AQ £645,000

RASPBERRY PI LTD

Correspondence address
194 Cambridge Science Park, Milton Road, Cambridge, England, CB4 0AB
Role ACTIVE
director
Date of birth
February 1961
Appointed on
6 September 2016
Resigned on
16 July 2024
Nationality
British
Occupation
Company Director
 
Source data

LO-Q (TRUSTEES) LIMITED

Correspondence address
Unit 5, The Pavilions Ruscombe Park, Twyford, Berkshire, United Kingdom, RG10 9NN
Role ACTIVE
director
Date of birth
February 1961
Appointed on
5 May 2016
Resigned on
31 December 2020
Nationality
British
Occupation
Company Director
 
Source data

Average house price in the postcode RG10 9NN £71,254,000

FRONTIER DEVELOPMENTS PLC

Correspondence address
26 Science Park Milton Road, Cambridge, England, CB4 0FP
Role ACTIVE
director
Date of birth
February 1961
Appointed on
15 February 2012
Resigned on
1 December 2022
Nationality
British
Occupation
Non-Executive Chairman
 
Source data

Average house price in the postcode CB4 0FP £41,054,000

ROCKSPRING ADVISORY SERVICES LIMITED

Correspondence address
C/O Windsor House Station Court, Station Road, Great Shelford, Cambridge, United Kingdom, CB22 5NE
Role ACTIVE
director
Date of birth
February 1961
Appointed on
6 March 2008
Nationality
British
Occupation
Company Director
 
Source data

Average house price in the postcode CB22 5NE £341,000

ROCKSPRING NOMINEES LIMITED

Correspondence address
C/O Windsor House, Station Court Station Road, Great Shelford, Cambridge, England, CB22 5NE
Role ACTIVE
director
Date of birth
February 1961
Appointed on
9 August 2006
Nationality
British
Occupation
Company Director
 
Source data

Average house price in the postcode CB22 5NE £341,000