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Todd Gillis
2 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Todd Gillis
Has Earned the Credential
ISA Tree Risk Assessment Qualification®
By successfully meeting ISA Tree Risk Assessment Qualification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
Caitlyn Pollihan CEO & Executive Director
16 September 2025
16 September 2020
Expiration Date
Issue Date
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
September 16, 2020
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Todd Gillis
Has Earned the Credential
ISA Certified Arborist ®
By successfully meeting ISA Certified Arborist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
Caitlyn Pollihan CEO & Executive Director
30 June 2026
9 March 2020
PN-8997A
Expiration Date
Certification Number
Issue Date
#0847 ISA Certified Arborist
ISA Certified Arborist ®
ISA Certified Arborist ®
March 9, 2020
International Society of Arboriculture
