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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
    Diehl, Seth
    Born in February 1975
    Individual (1 offspring)
    Officer
    2017-01-05 ~ now
    OF - Director → CIF 0
  • 2
    Cary, Richard
    Born in October 1962
    Individual (1 offspring)
    Officer
    2017-01-05 ~ now
    OF - Director → CIF 0
  • 3
    Mcclary, Amy
    Born in February 1971
    Individual (2 offsprings)
    Officer
    2021-08-01 ~ now
    OF - Director → CIF 0
Ceased 1
  • Hanes-dowd, April
    Individual
    Officer
    2017-01-05 ~ 2021-06-15
    OF - Secretary → CIF 0
parent relation
Company in focus

ARTHUR J. GALLAGHER & CO. (ILLINOIS)

Previous name
ARTHUR J. GALLAGHER & CO. (ILLINOIS) - 2026-01-13

Related profiles found in government register
  • ARTHUR J. GALLAGHER & CO. (ILLINOIS)
    Info
    ARTHUR J. GALLAGHER & CO. (ILLINOIS) - 2026-01-13
    Registered number FC033994
    600 South 2nd Street Suite 104, Springfield, Illinois, 62704
    OVERSEAS COMPANY incorporated on 2016-11-22 (9 years 3 months). The company status is Active.
    CIF 0
  • ARTHUR J. GALLAGHER & CO. (ILLINOIS)
    S
    Registered number 4013967
    2850 Golf Road, Rolling Meadows, Chicago, Illinois, United States, 60008
    Private, Not Limited in Usa
    CIF 1
  • ARTHUR J. GALLAGHER & CO INC.
    S
    Registered number 4013967
    2850, Golf Road, 10th Floor, Rolling Meadows, Chicago, Illinois, United States, 60008
    Public Limited Company in State Of Delaware, United States
    CIF 2
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
Ceased 2
  • 1
    35 SEDLESCOMBE ROAD LIMITED - 2020-03-09
    35 Sedlescombe Road, London, England
    Dissolved Corporate (1 parent)
    Person with significant control
    2017-02-28 ~ 2023-10-02
    CIF 1 - Ownership of voting rights - More than 25% but not more than 50% OE
    CIF 1 - Ownership of shares – More than 25% but not more than 50% OE
  • 2
    The Walbrook Building, 25 Walbrook, London, England
    Active Corporate (4 parents, 1 offspring)
    Person with significant control
    2021-01-27 ~ 2021-02-02
    CIF 2 - Right to appoint or remove directors OE
    CIF 2 - Ownership of shares – 75% or more OE
    CIF 2 - Ownership of voting rights - 75% or more OE

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.