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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 10
  • 1
    O'donnell, Lynn
    Retired (Former Industrial Hygienist) born in February 1949
    Individual (1 offspring)
    Officer
    icon of calendar 2016-09-14 ~ now
    OF - Director → CIF 0
  • 2
    Leibowitz, Alan
    Consultant born in September 1956
    Individual (1 offspring)
    Officer
    icon of calendar 2016-09-14 ~ now
    OF - Director → CIF 0
  • 3
    Laszcz-davis, Chris
    President, The Environmental Quality Organization born in March 1950
    Individual (1 offspring)
    Officer
    icon of calendar 2016-07-13 ~ now
    OF - Director → CIF 0
  • 4
    Zalk, David, Dr
    Ehs Manager born in September 1964
    Individual (1 offspring)
    Officer
    icon of calendar 2020-06-09 ~ now
    OF - Director → CIF 0
  • 5
    Jacobs, Peter-john
    Occupational Hygienist born in September 1970
    Individual (1 offspring)
    Officer
    icon of calendar 2020-06-09 ~ now
    OF - Director → CIF 0
  • 6
    Verpaele, Steven Angele Maurits
    Industrial Hygienist born in May 1976
    Individual (1 offspring)
    Officer
    icon of calendar 2018-05-15 ~ now
    OF - Director → CIF 0
  • 7
    Whitelaw, Jane Louise
    Lecturer born in October 1962
    Individual (1 offspring)
    Officer
    icon of calendar 2024-09-10 ~ now
    OF - Director → CIF 0
  • 8
    Johnson, Sharann Heather, Dr
    Occupational Health & Safety Consultant born in March 1951
    Individual (1 offspring)
    Officer
    icon of calendar 2021-06-23 ~ now
    OF - Director → CIF 0
  • 9
    Mansdorf, Seymour Zachary, Dr
    Consultant born in January 1947
    Individual (1 offspring)
    Officer
    icon of calendar 2018-05-15 ~ now
    OF - Director → CIF 0
  • 10
    Jimenez Saavedra, Ruth
    Civil Servant born in October 1976
    Individual (2 offsprings)
    Officer
    icon of calendar 2019-01-18 ~ now
    OF - Director → CIF 0
Ceased 31
  • 1
    Di Corleto, Rosario, Dr
    Industrial Hygienist born in November 1958
    Individual
    Officer
    icon of calendar 2011-03-01 ~ 2015-04-24
    OF - Director → CIF 0
    Di Corleto, Rosario, Dr
    Principal Adviser - Health Risk born in November 1958
    Individual
    icon of calendar 2017-04-19 ~ 2021-06-16
    OF - Director → CIF 0
    Dr Rosario Di Corleto
    Born in November 1958
    Individual
    Person with significant control
    icon of calendar 2017-04-19 ~ 2021-06-16
    PE - Has significant influence or controlCIF 0
  • 2
    Perkins, Stephen John
    Chief Executive born in March 1966
    Individual (1 offspring)
    Officer
    icon of calendar 2015-01-12 ~ 2016-09-21
    OF - Director → CIF 0
  • 3
    Steer, John Charles
    Director born in October 1950
    Individual
    Officer
    icon of calendar 2010-04-26 ~ 2015-04-24
    OF - Director → CIF 0
  • 4
    Ms Lynn O'donnell
    Born in February 1949
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2016-09-14 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 5
    Mr Alan Leibowitz
    Born in September 1956
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2016-09-14 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 6
    Smedbold, Hans Thore
    Chief Specialist born in January 1968
    Individual (1 offspring)
    Officer
    icon of calendar 2015-03-02 ~ 2018-04-29
    OF - Director → CIF 0
    Mr Hans Thore Smedbold
    Born in January 1968
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2016-09-14 ~ 2018-04-29
    PE - Has significant influence or controlCIF 0
  • 7
    Ms Chris Laszcz-davis
    Born in March 1950
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2016-09-14 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 8
    Dr David Zalk
    Born in September 1964
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2020-06-09 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 9
    Mcdonald, Terry
    University Lecturer born in June 1952
    Individual
    Officer
    icon of calendar 2010-04-23 ~ 2015-04-24
    OF - Director → CIF 0
  • 10
    Westhorpe, Barry
    Executive Director born in February 1960
    Individual
    Officer
    icon of calendar 2015-01-12 ~ 2016-07-13
    OF - Director → CIF 0
  • 11
    Mr Peter-john Jacobs
    Born in September 1970
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2020-06-09 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 12
    Tobin, Carol
    Occupational Hygiene born in November 1950
    Individual
    Officer
    icon of calendar 2011-02-01 ~ 2015-04-24
    OF - Director → CIF 0
  • 13
    Naerheim, Jakob
    Manager born in November 1967
    Individual
    Officer
    icon of calendar 2010-07-01 ~ 2012-11-28
    OF - Director → CIF 0
  • 14
    Davies, Brian, Dr
    University Professor born in February 1947
    Individual
    Officer
    icon of calendar 2010-04-26 ~ 2011-03-28
    OF - Director → CIF 0
  • 15
    Milroy, Mark
    Managing Director, Global Learning born in March 1955
    Individual
    Officer
    icon of calendar 2016-03-15 ~ 2016-12-31
    OF - Director → CIF 0
    Mr Mark Milroy
    Born in March 1955
    Individual
    Person with significant control
    icon of calendar 2016-09-14 ~ 2016-12-31
    PE - Has significant influence or controlCIF 0
  • 16
    Mr Steven Angele Maurits Verpaele
    Born in May 1976
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2018-05-15 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 17
    Dobbie, John Michael
    Occupational Hygiene Director born in April 1959
    Individual (1 offspring)
    Officer
    icon of calendar 2010-04-26 ~ 2015-04-24
    OF - Director → CIF 0
  • 18
    Dr Sharann Heather Johnson
    Born in March 1951
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2021-06-23 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 19
    Alesbury, Roger James
    Occupational Hygienist born in April 1950
    Individual
    Officer
    icon of calendar 2009-09-29 ~ 2017-06-03
    OF - Director → CIF 0
    Mr Roger James Alesbury
    Born in April 1950
    Individual
    Person with significant control
    icon of calendar 2016-09-14 ~ 2017-06-03
    PE - Has significant influence or controlCIF 0
  • 20
    Dr Seymour Zachary Mansdorf
    Born in January 1947
    Individual (1 offspring)
    Person with significant control
    icon of calendar 2018-05-15 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 21
    Mcclellan, Nancy Manning
    Industrial Hygienist born in July 1962
    Individual
    Officer
    icon of calendar 2011-04-27 ~ 2020-05-20
    OF - Director → CIF 0
    Mrs Nancy Manning Mcclellan
    Born in July 1962
    Individual
    Person with significant control
    icon of calendar 2016-09-14 ~ 2020-05-20
    PE - Has significant influence or controlCIF 0
  • 22
    Weaver, Lucetta Jane
    Industrial Hygienist born in August 1979
    Individual
    Officer
    icon of calendar 2018-11-19 ~ 2023-06-07
    OF - Director → CIF 0
    Mrs Lucetta Jane Weaver
    Born in August 1979
    Individual
    Person with significant control
    icon of calendar 2018-11-19 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 23
    Taylor, Duncan John
    Solicitor born in February 1960
    Individual (8 offsprings)
    Officer
    icon of calendar 2009-09-24 ~ 2009-09-29
    OF - Director → CIF 0
  • 24
    O'malley, David Austin
    Occupational Hygienist born in June 1952
    Individual (2 offsprings)
    Officer
    icon of calendar 2010-04-26 ~ 2015-04-24
    OF - Director → CIF 0
    icon of calendar 2016-01-13 ~ 2020-05-20
    OF - Director → CIF 0
    Mr David Austin O'malley
    Born in June 1952
    Individual (2 offsprings)
    Person with significant control
    icon of calendar 2016-09-14 ~ 2020-05-20
    PE - Has significant influence or controlCIF 0
  • 25
    Tresider, Noel Henry
    Director born in May 1941
    Individual
    Officer
    icon of calendar 2012-11-28 ~ 2018-09-23
    OF - Director → CIF 0
    Mr Noel Henry Tresider
    Born in May 1941
    Individual
    Person with significant control
    icon of calendar 2016-09-14 ~ 2018-09-23
    PE - Has significant influence or controlCIF 0
  • 26
    Leeson, Sarah Jane
    Occupational Hygiene Manager born in September 1966
    Individual (2 offsprings)
    Officer
    icon of calendar 2016-08-24 ~ 2018-09-23
    OF - Director → CIF 0
    Mrs Sarah Jane Leeson
    Born in September 1966
    Individual (2 offsprings)
    Person with significant control
    icon of calendar 2016-09-14 ~ 2018-09-23
    PE - Has significant influence or controlCIF 0
  • 27
    Fuller, Thomas, Dr
    Professor born in November 1955
    Individual (5 offsprings)
    Officer
    icon of calendar 2018-05-15 ~ 2023-10-31
    OF - Director → CIF 0
    Dr Thomas Fuller
    Born in November 1955
    Individual (5 offsprings)
    Person with significant control
    icon of calendar 2018-05-15 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 28
    Johns, Philip Peter
    Occupational Hygienist born in June 1956
    Individual
    Officer
    icon of calendar 2011-07-09 ~ 2013-08-07
    OF - Director → CIF 0
  • 29
    O'neil, Peter
    Executive Director born in December 1968
    Individual
    Officer
    icon of calendar 2015-01-12 ~ 2016-02-29
    OF - Director → CIF 0
  • 30
    Saavedra, Ruth Jimenez
    Director born in October 1976
    Individual (2 offsprings)
    Officer
    icon of calendar 2012-11-28 ~ 2015-04-24
    OF - Director → CIF 0
    Miss Ruth Jimenez Saavedra
    Born in October 1976
    Individual (2 offsprings)
    Person with significant control
    icon of calendar 2019-01-18 ~ 2022-04-27
    PE - Has significant influence or controlCIF 0
  • 31
    Bailey, Stephen Robert
    Environment, Health&Safety Manager born in January 1953
    Individual (1 offspring)
    Officer
    icon of calendar 2009-09-29 ~ 2015-04-24
    OF - Director → CIF 0
parent relation
Company in focus

OCCUPATIONAL HYGIENE TRAINING ASSOCIATION

Standard Industrial Classification
85590 - Other Education N.e.c.

  • OCCUPATIONAL HYGIENE TRAINING ASSOCIATION
    Info
    Registered number 07029077
    icon of address7 Faraday Court, First Avenue, Burton On Trent, Staffordshire DE14 2WX
    Private Limited Company By Guarantee Without Share Capital Use Of 'Limited' Exemption incorporated on 2009-09-24 (16 years). The company status is Active.
    The last date of confirmation statement was made at 2024-09-24
    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 26 August 2025 and licensed under the Open Government Licence v3.0.