| 2025 | Klein Family Charitable Foundation | 990PF | President/Tr | 1 | $0 | $0 | View return |
| 2025 | Persistent Systems Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2025 | International Assn of Lions Club-St Paul Park-Newport Lions | 990 | Membership Committee | 1 | $0 | $0 | View return |
| 2024 | Ascension Michigan | 990 | Chief Operating Officer | 50 | $430,226 | $0 | View return |
| 2024 | Henry Ford Medical Group Genesys | 990 | Ex-Officio/COO | 0 | $0 | $430,226 | View return |
| 2024 | Seton Healthcare Corporation of Southeast Michigan | 990 | Director | 0 | $0 | $430,226 | View return |
| 2024 | Henry Ford Semi Medical Group | 990 | Ex-Officio/COO | 0 | $0 | $430,226 | View return |
| 2024 | Ascension Medical Group Promed | 990 | Ex-Officio/COO | 0 | $0 | $430,226 | View return |
| 2024 | Persistent Systems Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2024 | International Assn of Lions Club-St Paul Park-Newport Lions | 990 | Membership Committee | 1 | $0 | $0 | View return |
| 2024 | Gateway Sertoma Club | 990EZ | Director | 2 | $0 | $0 | View return |
| 2024 | Klein Family Charitable Foundation | 990PF | President/Tr | 1 | $0 | $0 | View return |
| 2024 | Georgia Sandlot Baseball Inc. | 990 | CFO | - | $0 | $0 | View return |
| 2024 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2024 | Our School of Gig Harbor | 990 | Director | 1.5 | $0 | $0 | View return |
| 2024 | West Michigan Cancer Center | 990 | Director | 0.3 | $0 | $0 | View return |
| 2024 | Animal Alliance of the Americas Inc. | 990EZ | President | 0 | $0 | - | View return |
| 2024 | Little Sturgeon Trout Club Inc | 990EZ | Secretary | 1 | $0 | $0 | View return |
| 2024 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2024 | Helen & Paul Zuckerman Family Support Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2024 | Wine Institute | 990 | Ex Officio | 1 | $0 | $0 | View return |
| 2024 | Harlem Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2023 | Animal Alliance of the Americas Inc. | 990EZ | President | 0 | $0 | - | View return |
| 2023 | Persistent Systems Foundation Inc. | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2023 | International Assn of Lions Club-St Paul Park-Newport Lions | 990 | Membership Committee | 1 | $0 | $0 | View return |
| 2023 | Georgia Sandlot Baseball Inc. | 990 | CFO | 1 | $0 | $0 | View return |
| 2023 | West Michigan Cancer Center | 990 | Director | 0.3 | $0 | $0 | View return |
| 2023 | Golden Gate Park Golf Development Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Klein Family Charitable Foundation | 990PF | President/Tr | 1 | $0 | $0 | View return |
| 2023 | Warren Township Youth Football Inc. | 990EZ | Secretary | 15 | $0 | $0 | View return |
| 2023 | San Francisco First Tee | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2023 | Helen & Paul Zuckerman Family Support Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2023 | Klein Tools Inc. Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2023 | Little Sturgeon Trout Club Inc | 990EZ | Secretary | 1 | $0 | $0 | View return |
| 2023 | Crossroads Hope Academy Incorporated | 990 | Secretary | 1 | $0 | $0 | View return |
| 2023 | Harlem Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2023 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2022 | Klein Family Charitable Foundation | 990PF | President/Tr | 1 | $0 | $0 | View return |
| 2022 | International Assn of Lions Club-St Paul Park-Newport Lions | 990 | Membership Committee | 1 | $0 | $0 | View return |
| 2022 | Georgia Sandlot Baseball Inc. | 990EZ | CFO | 0 | $0 | $0 | View return |
| 2022 | Benevolent & Protective Order of Elks of the USA | 990 | Exalted Ruler | 10 | $0 | $0 | View return |
| 2022 | Rotary Club of Aurora | 990EZ | Past President | 5 | $0 | $0 | View return |
| 2022 | San Francisco First Tee | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | West Michigan Cancer Center | 990 | Director | 0.3 | $0 | $0 | View return |
| 2022 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2022 | Golden Gate Park Golf Development Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | Aurora Rotary Foundation Inc. | 990EZ | Trustee | 5 | $0 | $0 | View return |
| 2022 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2022 | Klein Tools Inc. Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2022 | Crossroads Hope Academy Incorporated | 990 | Secretary | 1 | $0 | $0 | View return |
| 2022 | Little Sturgeon Trout Club Inc | 990EZ | Secretary | 1 | $0 | $0 | View return |
| 2022 | Huntington Symphony Orchestra Association Inc. | 990 | Board Member | - | $0 | $0 | View return |
| 2022 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2022 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2022 | Harlem Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2021 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2021 | Benevolent & Protective Order of Elks of the USA | 990 | Exalted Ruler | 10 | $0 | $0 | View return |
| 2021 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2021 | San Francisco First Tee | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | Georgia Sandlot Baseball Inc. | 990EZ | CFO | 0 | $0 | $0 | View return |
| 2021 | West Michigan Cancer Center | 990 | Director | 0.3 | $0 | $0 | View return |
| 2021 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2021 | International Assn of Lions Club-St Paul Park-Newport Lions | 990 | Membership Committee | 1 | $0 | $0 | View return |
| 2021 | Klein Family Charitable Foundation | 990PF | President/Tr | 1 | $0 | $0 | View return |
| 2021 | Golden Gate Park Golf Development Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | Rotary Club of Aurora | 990EZ | President | 5 | $0 | $0 | View return |
| 2021 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2021 | Huntington Symphony Orchestra Association Inc. | 990 | Board Member | 0.25 | $0 | $0 | View return |
| 2021 | Klein Tools Inc. Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2021 | Harlem Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2020 | International Assn of Lions Club-St Paul Park-Newport Lions | 990 | Membership Committee | 1 | $0 | $0 | View return |
| 2020 | Rotary Club of Aurora | 990EZ | President Elect | 5 | $0 | $0 | View return |
| 2020 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | - | View return |
| 2020 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2020 | Open Mobile Project Foundation | 990EZ | Secretary | 0.5 | $0 | $0 | View return |
| 2020 | Golden Gate Park Golf Development Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Harlem Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2020 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2020 | San Francisco First Tee | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Klein Tools Inc. Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2019 | International Assn of Lions Club-St Paul Park-Newport Lions | 990 | Membership Committee | 1 | $0 | $0 | View return |
| 2019 | Falcon Foundation International Inc. | 990PF | Vice Preside | 0 | $0 | $0 | View return |
| 2019 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2019 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | - | View return |
| 2019 | Veterans of Foreign Wars of the United States Dept of New Jersey | 990EZ | Trustee | 1 | $0 | $0 | View return |
| 2019 | Fred Yam Cavalliere Post 78 American Legion | 990EZ | Finance Officer | 30 | $0 | $0 | View return |
| 2019 | Helen & Paul Zuckerman Family Support Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2019 | Klein Tools Inc. Charitable Foundation | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2019 | Crete Area Health Care Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2018 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | - | View return |
| 2018 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2018 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2018 | Falcon Foundation International Inc. | 990PF | Vice Preside | 0 | $0 | $0 | View return |
| 2018 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2018 | Helen & Paul Zuckerman Family Support Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | Crete Area Health Care Foundation | 990 | President | 0 | $0 | $0 | View return |
| 2017 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2017 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2017 | Falcon Foundation International Inc. | 990PF | Vice Preside | 5 | $0 | $0 | View return |
| 2017 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | - | View return |
| 2017 | Helen & Paul Zuckerman Family Support Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2017 | Saint Francis Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Saint Francis Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | Falcon Foundation International Inc. | 990PF | Vice Preside | 0 | $0 | $0 | View return |
| 2016 | Societa DI Mutuo Soccorsso Operaia Venta | 990 | Financial Secretary | 10 | $0 | $0 | View return |
| 2016 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | - | View return |
| 2016 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2016 | Goodwill Industries of Northwest Ohio Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Association of the Cotuit Mosquito Yacht Club Inc. | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2016 | Crete Area Health Care Foundation | 990 | President | 0 | $0 | $0 | View return |
| 2016 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2016 | Saint Francis Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | - | View return |
| 2015 | British American Business Council Northern California | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2015 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2015 | Societa DI Mutuo Soccorsso Operaia Venta | 990 | Financial Secretary | 10 | $0 | $0 | View return |
| 2015 | Young Mens Christian Association-Findlay Ohio- | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Falcon Foundation International Inc. | 990PF | Vice Preside | 0.5 | $0 | $0 | View return |
| 2015 | California Hotel & Lodging Association | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2015 | Association of the Cotuit Mosquito Yacht Club Inc. | 990 | President | 15 | $0 | $0 | View return |
| 2015 | Goodwill Industries of Northwest Ohio Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Oakwood Village University Woods Homes Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2015 | Crete Area Health Care Foundation | 990 | President | 0 | $0 | $0 | View return |
| 2015 | Saint Francis Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Thomas and Susan Klein Foundation | 990PF | President | 0 | $0 | - | View return |
| 2014 | Disabled American Veterans #16 | 990 | Senior Vice Commander | 35 | $0 | $0 | View return |
| 2014 | California Hotel & Lodging Association | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2014 | Young Mens Christian Association-Findlay Ohio- | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Wine Institute | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2014 | Lincoln Independent Business Association Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2014 | Goodwill Industries of Northwest Ohio Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Societa DI Mutuo Soccorsso Operaia Venta | 990 | Financial Secretary | 10 | $0 | $0 | View return |
| 2014 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2014 | Association of the Cotuit Mosquito Yacht Club Inc. | 990 | President | 15 | $0 | $0 | View return |
| 2014 | British American Business Council Northern California | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Heartland Alliance for Human Needs and Rights | 990 | Liaison Ex-Officio | 1 | $0 | $0 | View return |
| 2014 | Crete Area Health Care Foundation | 990 | President | 0 | $0 | $0 | View return |
| 2013 | Local No 5 Municipal Employees Benefit Trust Fund | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The 4 Eagle Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2013 | British American Business Council Northern California | 990 | Director | 0 | $0 | $0 | View return |
| 2013 | Goodwill Industries of Northwest Ohio Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Boilermakers Local Lodge No 5 Vacation Fd | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | Boilermakers Local Lodge No 5 Welfare Fund | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | Centro Legal Por Derechos Humanos Inc. | 990 | Board | 1 | $0 | $0 | View return |
| 2013 | The Portland Branch of the Anthroposophic Society Inc. | 990EZ | Trustee | 1 | $0 | - | View return |
| 2013 | Societa DI Mutuo Soccorsso Operaia Venta | 990 | Financial Secretary | 10 | $0 | $0 | View return |
| 2013 | California Hotel & Lodging Association | 990 | Secretary/Treas | 2 | $0 | $0 | View return |
| 2013 | Young Mens Christian Association-Findlay Ohio- | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Heartland Alliance for Human Needs and Rights | 990 | Ex-Officio Director | 1 | $0 | $0 | View return |
| 2013 | Crete Area Health Care Foundation | 990 | President | 0 | $0 | $0 | View return |