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Person · officer / director

George Dethlefsen

Secretary Treasurer · International Diatomite Producers Association

Secretary Treasurer at International Diatomite Producers Association. Listed as an officer, director, or key employee across 1 organization on the Form 990 record.

This is me
Ambiguous identity This name matches 2 other individuals we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.
Organizations
1
Roles reported
1
Others who share this name
2

Who this is

Profile

The filed facts are verified from the IRS filings. The biography is compiled from public web sources and grounded to that filed record.

✓ Verified from filings
●
Reported as Secretary Treasurer of International Diatomite Producers Association, based in Arlington, VA.
Facts extracted directly from each organization's Form 990, Part VII.
Biography In progress
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Affiliations

Organizations

International Diatomite Producers Association Secretary Treasurer · $274K revenue · Arlington, VAIDPA IS COMMITTED TO THE SAFE USE OF DIATOMACEOUS EARTH PRODUCTS AND TO ADVANCING RESEARCH AND MAINTAINING A DIALOGUE WITH INDUSTRY, LEGISLATORS,…Filed FY2021, FY2020 · Source: Form 990, Part VII

Disambiguation

Other people named George Dethlefsen

Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person.

G
George Dethlefsen 1 organization · Wilmington, DEYoung Presidents Organization - Philadelphia Chapter INC
G
George Dethlefsen 1 organization · Arlington, VAIndustrial Minerals Association - North America

Network

Serves alongside

Other officers, directors & key employees at this person's organizations, by latest reported compensation.

C
Christopher K Greissing
Executive Director · FY2024
$68K
M
Mark E Ellis
Former Ed (ima-Na) · FY2021
$16K
W
Wayne Palmer
Executive Vice President (ema) · FY2024
$9K
J
John Cowie
Senior Director,Technical Affairs(ema) · FY2023
$3K
J
Jennifer Martin
Vice President (ema) · FY2024
$3K
M
Matthew Dermody
Associate Vice President (ema) · FY2024
$2K
A
Ariel H Davis
Director (ima-Na) · FY2020
$2K
C
Clarence Grebey
VP, Communication & External Affair (ema) · FY2022
$1K
M
Matt Centa
Chairman · FY2024
D
Derek Cusack
Vice Chairman · FY2024
K
Kenzo Ishibashi
Secretary/Treasurer · FY2024
R
Reinier P Keijzer
Director · FY2024

Network

Recommendations

Written by other verified members of the network — visible once you're a verified person yourself.

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Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org