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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 3
  • 1
    Duff, Mark, Mr.
    Born in March 1963
    Individual (1 offspring)
    Officer
    icon of calendar 2018-04-01 ~ now
    OF - Director → CIF 0
  • 2
    Naccarato, Ben Annaldo
    Born in December 1962
    Individual (1 offspring)
    Officer
    icon of calendar 2012-03-15 ~ now
    OF - Director → CIF 0
    Naccarato, Ben Annaldo
    Individual (1 offspring)
    Officer
    icon of calendar 2012-03-15 ~ now
    OF - Secretary → CIF 0
  • 3
    icon of address2800, Tn37931, Solway Road, Knoxville, Tennessee, United States
    Corporate (1 offspring)
    Person with significant control
    icon of calendar 2016-12-24 ~ now
    PE - Ownership of shares – 75% or moreCIF 0
Ceased 16
  • 1
    Blankenhorn, James Allen
    Chief Operating Officer born in August 1964
    Individual
    Officer
    icon of calendar 2012-03-15 ~ 2014-03-20
    OF - Director → CIF 0
  • 2
    Bishop, Diana
    Cfo born in January 1950
    Individual
    Officer
    icon of calendar 2003-12-08 ~ 2006-03-31
    OF - Director → CIF 0
  • 3
    Gray, Martin E
    Director born in April 1962
    Individual
    Officer
    icon of calendar 2003-09-26 ~ 2003-12-08
    OF - Director → CIF 0
    Gray, Martin E
    Individual
    Officer
    icon of calendar 2002-12-24 ~ 2003-12-08
    OF - Secretary → CIF 0
  • 4
    Roth, Michael Brian
    Individual
    Officer
    icon of calendar 2004-12-01 ~ 2006-07-31
    OF - Secretary → CIF 0
    icon of calendar 2007-09-20 ~ 2008-08-31
    OF - Secretary → CIF 0
  • 5
    Centofanti, Louis Frances, Dr.
    Chief Executive Officer born in July 1943
    Individual
    Officer
    icon of calendar 2012-03-15 ~ 2018-04-01
    OF - Director → CIF 0
  • 6
    Sweeney, Karla Jayne
    Individual
    Officer
    icon of calendar 2006-08-01 ~ 2007-09-20
    OF - Secretary → CIF 0
  • 7
    Gorbould, Ian
    Individual
    Officer
    icon of calendar 2004-05-12 ~ 2004-08-13
    OF - Secretary → CIF 0
  • 8
    Scott, Jeff
    Vice President born in May 1974
    Individual
    Officer
    icon of calendar 2010-08-04 ~ 2011-07-21
    OF - Director → CIF 0
  • 9
    Leichtweis, Christopher P
    Director born in May 1959
    Individual
    Officer
    icon of calendar 2002-12-24 ~ 2011-10-31
    OF - Director → CIF 0
  • 10
    Macrae, John H
    Director born in December 1962
    Individual
    Officer
    icon of calendar 2002-12-24 ~ 2010-08-04
    OF - Director → CIF 0
  • 11
    Robinson, Peter
    Individual (1 offspring)
    Officer
    icon of calendar 2008-08-31 ~ 2011-10-31
    OF - Secretary → CIF 0
  • 12
    Goebel, Donald
    Vice President Business Development born in October 1959
    Individual
    Officer
    icon of calendar 2011-07-22 ~ 2011-10-31
    OF - Director → CIF 0
  • 13
    Larison, Kenneth Wayne
    Chief Information Officer born in June 1962
    Individual
    Officer
    icon of calendar 2003-12-08 ~ 2004-08-27
    OF - Director → CIF 0
  • 14
    icon of address26, Church Street, London
    Dissolved Corporate (4 parents, 9 offsprings)
    Equity (Company account)
    2 GBP2022-12-31
    Officer
    2002-12-24 ~ 2002-12-24
    PE - Nominee Secretary → CIF 0
  • 15
    icon of address1, Mitchell Lane, Bristol, Avon
    Dissolved Corporate (4 parents, 14 offsprings)
    Equity (Company account)
    100 GBP2022-12-31
    Officer
    2002-12-24 ~ 2002-12-24
    PE - Nominee Director → CIF 0
  • 16
    icon of addressSt Ann's Wharf, 112 Quayside, Newcastle Upon Tyne
    Active Corporate (4 parents, 151 offsprings)
    Officer
    2003-12-08 ~ 2004-05-14
    PE - Secretary → CIF 0
parent relation
Company in focus

PERMA-FIX ENVIRONMENTAL SERVICES UK LIMITED

Previous names
SEC (UK) NUCLEAR LIMITED - 2003-01-06
SAFETY AND ECOLOGY CORPORATION LIMITED - 2012-05-15
SEC-UK NUCLEAR LIMITED - 2003-12-09
SEC-UK ENVIRONMENT & INFRASTRUCTURE LIMITED - 2004-05-17
Standard Industrial Classification
71200 - Technical Testing And Analysis

  • PERMA-FIX ENVIRONMENTAL SERVICES UK LIMITED
    Info
    SEC (UK) NUCLEAR LIMITED - 2003-01-06
    SAFETY AND ECOLOGY CORPORATION LIMITED - 2003-01-06
    SEC-UK NUCLEAR LIMITED - 2003-01-06
    SEC-UK ENVIRONMENT & INFRASTRUCTURE LIMITED - 2003-01-06
    Registered number 04625330
    icon of addressSuite 5, Cumbria House Gilwilly Road, Gilwilly Industrial Estate, Penrith, Cumbria CA11 9FF
    PRIVATE LIMITED COMPANY incorporated on 2002-12-24 (23 years). The company status is Active.
    The last date of confirmation statement was made at 2024-12-13
    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.