| 2024 | Matthew T Koch Foundation | 990PF | Secretary | 0 | $0 | $0 | View return |
| 2024 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chair | 3 | $0 | $0 | View return |
| 2024 | Louise C Murdock Trust | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2024 | Buffalo & Erie County Public Library | 990 | City Of Tonawanda Public Library Board Secretary | 1 | $0 | $0 | View return |
| 2024 | Southwest Care Center Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Northwest Symphony Orchestra | 990EZ | Guild President | 1 | $0 | $0 | View return |
| 2023 | Matthew T Koch Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2023 | American Historical Society of Germans from Russia | 990 | Director | 5.5 | $0 | $0 | View return |
| 2023 | Buffalo & Erie County Public Library | 990 | City Of Tonawanda Public Library Board Secretary | 1 | $0 | $0 | View return |
| 2023 | Louise C Murdock Trust | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2023 | Southwest Care Center Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | American Historical Society of Germans from Russia | 990 | Director | 5.5 | $0 | $0 | View return |
| 2022 | Louise C Murdock Trust | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2022 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0.1 | $0 | $0 | View return |
| 2022 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2022 | New Jersey Education Association | 990 | Treasurer | 5 | $0 | $0 | View return |
| 2022 | Koch Family Foundation | 990PF | Chairman/Director | 1 | $0 | $0 | View return |
| 2022 | Elizabeth R Koch Foundation Inc. | 990PF | President, Sec, Tres, Director | 1 | $0 | $0 | View return |
| 2022 | Tiny Blue Dot Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Buffalo & Erie County Public Library | 990 | City Of Tonawanda Public Library Board Secretary | 1 | $0 | $0 | View return |
| 2022 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Southwest Care Center Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Genesee Valley Advertisers Inc DBA Rochester Advertising Federation | 990EZ | Creative Chair | 0 | $0 | - | View return |
| 2021 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2021 | Koch Family Foundation | 990PF | Chairman/Director | 1 | $0 | $0 | View return |
| 2021 | Charles Koch Charitable Fund | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Elizabeth R Koch Foundation Inc. | 990PF | President, Sec, Tres, Director | 1 | $0 | $0 | View return |
| 2021 | New Jersey Education Association | 990 | Treasurer | 5 | $0 | $0 | View return |
| 2021 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2021 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Tiny Blue Dot Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Charles Koch Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0.1 | $0 | $0 | View return |
| 2021 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairwoman | 3 | $0 | $0 | View return |
| 2021 | Southwest Care Center Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Louise C Murdock Trust | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2020 | Charles Koch Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Koch Family Foundation | 990PF | Chairman/Director | 1 | $0 | $0 | View return |
| 2020 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0.1 | $0 | $0 | View return |
| 2020 | Charles Koch Charitable Fund | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2020 | New Jersey Education Association | 990 | Treasurer | 5 | $0 | $0 | View return |
| 2020 | Genesee Valley Advertisers Inc DBA Rochester Advertising Federation | 990EZ | Creative Chair | 0 | $0 | - | View return |
| 2020 | Tiny Blue Dot Inc. | 990PF | Pres/Director/Secretary/Treas. | 1 | $0 | $0 | View return |
| 2020 | Elizabeth R Koch Foundation Inc. | 990PF | President, Sec, Tres, Director | 1 | $0 | $0 | View return |
| 2020 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2020 | Fisher Koch Family Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairwoman | 3 | $0 | $0 | View return |
| 2019 | Tiny Blue Dot Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Elizabeth R Koch Foundation Inc. | 990PF | President, Sec, Tres, Director | 1 | $0 | $0 | View return |
| 2019 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2019 | Charles Koch Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2019 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0.1 | $0 | $0 | View return |
| 2019 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairwoman | 3 | $0 | $0 | View return |
| 2019 | Fisher Koch Family Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2018 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2018 | Charles Koch Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Koch Family Foundation | 990PF | Chairman/Director | 1 | $0 | $0 | View return |
| 2018 | Tiny Blue Dot Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2018 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Fisher Koch Family Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairwoman | 9.5 | $0 | $0 | View return |
| 2017 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2017 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2017 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2017 | Youth Entrepreneurs Georgia Inc | 990 | Chairwoman | 4 | $0 | $0 | View return |
| 2017 | Koch Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2017 | Tiny Blue Dot Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Charles Koch Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2017 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Fisher Koch Family Foundation Inc | 990PF | Director | 0 | $0 | $0 | View return |
| 2017 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairwoman | 9.5 | $0 | $0 | View return |
| 2017 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairwoman | 9.5 | $0 | $0 | View return |
| 2016 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2016 | Charles Koch Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Koch Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2016 | Tiny Blue Dot Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Youth Entrepreneurs Georgia Inc | 990 | Chairwoman | 4 | $0 | $0 | View return |
| 2016 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2016 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2016 | Youth Entrepreneurs Foundation | 990 | Chairwoman | 2 | $0 | $0 | View return |
| 2016 | Society for Preservation of Weeksville & Bedford-Stuyvesant Hi | 990 | Director | 5 | $0 | $0 | View return |
| 2016 | Fisher Koch Family Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2015 | Youth Entrepreneurs Georgia Inc | 990 | Chairperson | 2.5 | $0 | $0 | View return |
| 2015 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2015 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2015 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2015 | Tiny Blue Dot Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2015 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | Koch Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2015 | Charles Koch Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2015 | Fisher Koch Family Foundation Inc | 990PF | Director | 0 | $0 | $0 | View return |
| 2015 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairwoman | 3.5 | $0 | $0 | View return |
| 2015 | Youth Entrepreneurs Foundation | 990 | Chairwoman | 2 | $0 | $0 | View return |
| 2014 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Friends of Knox Farm State Park Inc. | 990EZ | Treasurer | 5 | $0 | - | View return |
| 2014 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2014 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2014 | Charles Koch Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2014 | Mark Arts Inc. | 990 | Honorary Trustee | 1 | $0 | $0 | View return |
| 2014 | Friends of Knox Farm State Park Inc. | 990EZ | Treasurer | 5 | $0 | - | View return |
| 2014 | Koch Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2014 | Youth Entrepreneurs of Kansas Inc | 990 | Director/Chairman | 4.5 | $0 | $0 | View return |
| 2014 | Fisher Koch Family Foundation Inc | 990PF | Director | 0 | $0 | $0 | View return |
| 2013 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | Mark Arts Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Koch Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2013 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2013 | Charles Koch Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2013 | Stand Together Fellowship | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Friends of Knox Farm State Park Inc. | 990EZ | Treasurer | 2 | $0 | - | View return |
| 2013 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2013 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2012 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2012 | Koch Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2012 | Charles Koch Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2012 | Claude R Lambe Charitable Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2012 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2011 | Allen House Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2011 | Knowledge and Progress Fund Inc | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2011 | Koch Cultural Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2011 | Koch Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2011 | Claude R Lambe Charitable Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2011 | Claude R Lambe Charitable Foundation | 990PF | Director | 0.25 | $0 | $0 | View return |
| 2011 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2010 | Charles Koch Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2010 | Charles J and Elizabeth R Koch Tr Charitable Private Foundation | 990PF | President-Chairman | 0 | $0 | $0 | View return |
| 2010 | Allen House Foundation | 990PF | President/Director | 1 | $0 | - | View return |