Officer

ARTHUR GREENBERG

11 organizations • 52 returns • Latest tax year 2025

DirectorTreasurerBoard MemberChairChair-ElectPresidentVice-ChairFormer TreasurerPast-ChairTreasurer (Thru Nov 2019)Trustee

Name Match Caveat

This page groups activity by normalized name only. It may combine different people who share the same name.

Organizations

Returns

Total Compensation

Total Benefits

Organizations

Organization	EIN	Returns	Latest Year	Latest Title	Compensation
Wildflower Camp Foundation Inc	20-1224412	9	2024	Former Treasurer	$0
Geffen Playhouse Inc.	95-4492653	8	2019	Director	$0
El Caballero Foundation C/O Alan Wiener	46-3746405	7	2020	Director	$0
Carriage Barn Equestrian Center Therapeutic Riding Program Inc.	05-0526877	6	2024	President	$0
American Chemical Society History of Chemistry DIV U of IL	52-6055746	5	2025	Past-Chair	$0
The Center for Arts Education Inc	13-3938080	5	2018	Board Member	$0
Community Support Services Inc.	23-7029146	4	2016	Director	$0
New Hampshire Science Teachers Association LLC	26-3490482	3	2017	Director	$0
American Camping Association Inc. New England Section	04-2076741	3	2016	Director	$0
University of Maryland Foundation Inc.	52-1125663	1	2023	Director	$0
Sol-La Music Academy Inc	26-2128710	1	2013	Trustee	$0

Returns

Tax Year	Organization	Type	Title	Hours / Week	Compensation	Benefits	Return
2025	American Chemical Society History of Chemistry DIV U of IL	990EZ	Past-Chair	1	$0	$0	View return
2024	Carriage Barn Equestrian Center Therapeutic Riding Program Inc.	990	President	8	$0	$0	View return
2024	American Chemical Society History of Chemistry DIV U of IL	990EZ	Chair	1	$0	$0	View return
2024	Wildflower Camp Foundation Inc	990	Former Treasurer	2	$0	$0	View return
2023	American Chemical Society History of Chemistry DIV U of IL	990EZ	Chair	1	$0	$0	View return
2023	Carriage Barn Equestrian Center Therapeutic Riding Program Inc.	990	President	1	$0	$0	View return
2023	Wildflower Camp Foundation Inc	990	Treasurer	2	$0	$0	View return
2023	University of Maryland Foundation Inc.	990	Director	0	$0	$0	View return
2022	American Chemical Society History of Chemistry DIV U of IL	990EZ	Chair-Elect	1	$0	$0	View return
2022	Wildflower Camp Foundation Inc	990	Treasurer	2	$0	$0	View return
2022	Carriage Barn Equestrian Center Therapeutic Riding Program Inc.	990	Director	1	$0	$0	View return
2021	Carriage Barn Equestrian Center Therapeutic Riding Program Inc.	990	Director	2	$0	$0	View return
2021	Wildflower Camp Foundation Inc	990	Director	2	$0	$0	View return
2021	American Chemical Society History of Chemistry DIV U of IL	990EZ	Chair-Elect	1	$0	$0	View return
2020	Carriage Barn Equestrian Center Therapeutic Riding Program Inc.	990	Director	2	$0	$0	View return
2020	El Caballero Foundation C/O Alan Wiener	990	Director	0	$0	$0	View return
2020	Wildflower Camp Foundation Inc	990	Director	2	$0	$0	View return
2019	Wildflower Camp Foundation Inc	990	Treasurer (Thru Nov 2019)	2	$0	$0	View return
2019	El Caballero Foundation C/O Alan Wiener	990	Director	0	$0	$0	View return
2019	Carriage Barn Equestrian Center Therapeutic Riding Program Inc.	990EZ	Director	2	$0	$0	View return
2019	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return
2018	El Caballero Foundation C/O Alan Wiener	990	Director	0	$0	$0	View return
2018	Wildflower Camp Foundation Inc	990	Treasurer	2	$0	$0	View return
2018	The Center for Arts Education Inc	990	Board Member	0.5	$0	$0	View return
2018	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return
2017	El Caballero Foundation C/O Alan Wiener	990	Director	0	$0	$0	View return
2017	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return
2017	New Hampshire Science Teachers Association LLC	990EZ	Director	0	$0	-	View return
2017	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return
2016	Community Support Services Inc.	990	Director	1	$0	$0	View return
2016	El Caballero Foundation C/O Alan Wiener	990	Director	0	$0	$0	View return
2016	Wildflower Camp Foundation Inc	990	Treasurer	2	$0	$0	View return
2016	The Center for Arts Education Inc	990	Board Member	0.5	$0	$0	View return
2016	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return
2016	American Camping Association Inc. New England Section	990	Director	1	$0	$0	View return
2015	Community Support Services Inc.	990	Director	1	$0	$0	View return
2015	El Caballero Foundation C/O Alan Wiener	990	Director	0	$0	$0	View return
2015	Wildflower Camp Foundation Inc	990	Treasurer	2	$0	$0	View return
2015	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return
2015	The Center for Arts Education Inc	990	Director	0.5	$0	$0	View return
2015	American Camping Association Inc. New England Section	990	Director	1	$0	$0	View return
2014	New Hampshire Science Teachers Association LLC	990EZ	Director	2	$0	-	View return
2014	El Caballero Foundation C/O Alan Wiener	990	Director	0	$0	$0	View return
2014	Community Support Services Inc.	990	Vice-Chair	1	$0	$0	View return
2014	The Center for Arts Education Inc	990	Director	0.5	$0	$0	View return
2014	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return
2014	American Camping Association Inc. New England Section	990	Director	1	$0	$0	View return
2013	Community Support Services Inc.	990	Vice-Chair	1	$0	$0	View return
2013	New Hampshire Science Teachers Association LLC	990EZ	Director	1	$0	-	View return
2013	Sol-La Music Academy Inc	990	Trustee	0	$0	$0	View return
2013	The Center for Arts Education Inc	990	Director	0.5	$0	$0	View return
2013	Geffen Playhouse Inc.	990	Director	1	$0	$0	View return