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Nunataks Ltd

Greenburgh Nature Center

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Environmental Quality, Protection and Beautification / Environmental Education and Outdoor Survival Programs (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$1.72M (2023)

Expenses
$1.67M (2023)

Total Assets
$1.23M (2023)

Total Liabilities
$149k (2023)

Source: Form 990 tax filings from 2011 to 2023

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,720,312
Expenses
$1,666,284
Net Income
$54,028
Net Assets
$1,081,070
Notable Sources of Revenue Percent of Total Revenue
Contributions $947,186
55.1%
Program Services $681,797
39.6%
Investment Income $28,606
1.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $30,199
1.8%
Net Fundraising $17,405
1.0%
Sales of Assets -$915
Net Inventory Sales $15,937
0.9%
Other Revenue $97
0.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $148,344
8.9%
Professional Fundraising Fees $0
Other Salaries and Wages $831,031
49.9%
Assets/Debt
Total Assets $1,229,783
Total Liabilities $148,713
Net Assets $1,081,070
Compensation
Key Employees and Officers Compensation Related Other
Alexandra Dunn (Executive Di) $143,684 $0 $18,737
Tracey Kurzweil (President) $0 $0 $0
James Blann (Treasurer) $0 $0 $0
Michael Darviche (Chair) $0 $0 $0
Steve Gold (1 St Vp) $0 $0 $0
Naomi Haber (Secretary) $0 $0 $0
Jackie Feffer (2 Nd Vp) $0 $0 $0
John Chester (Board) $0 $0 $0
Diana Juettner (Board) $0 $0 $0
Emily Hameluntil January 2023 (Board) $0 $0 $0
Dolya Srivisal Fleck (Board) $0 $0 $0
Dr Lorie Davidson (Board) $0 $0 $0
Michael Sims (Board) $0 $0 $0
Adam Lerman (Board) $0 $0 $0
Daphne Monnoyeuruntil 423 (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,590,790
Expenses
$1,630,142
Net Income
-$39,352
Net Assets
$992,029
Notable Sources of Revenue Percent of Total Revenue
Contributions $815,076
51.2%
Program Services $686,585
43.2%
Investment Income $8,693
0.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $36,498
2.3%
Net Fundraising $30,002
1.9%
Sales of Assets $0
Net Inventory Sales $13,823
0.9%
Other Revenue $113
0.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $138,308
8.5%
Professional Fundraising Fees $0
Other Salaries and Wages $769,378
47.2%
Assets/Debt
Total Assets $1,139,224
Total Liabilities $147,195
Net Assets $992,029
Compensation
Key Employees and Officers Compensation Related Other
Alix Dunn (Executive Di) $134,058 $0 $16,718
James Blann (President) $0 $0 $0
Michael Darviche (Chair) $0 $0 $0
David Seal (2 Nd Vp(unti) $0 $0 $0
Cathy Ludden (Exec. Commit) $0 $0 $0
Sookie Lee Kim (Treasurer) $0 $0 $0
Lorelei Davidson (Board) $0 $0 $0
Steve Gold (2 Nd Vp) $0 $0 $0
Naomi Haber (Secretary) $0 $0 $0
Tracey Kurzweil (1 St Vp) $0 $0 $0
Daphne Monnoyeur Moore (Board(until) $0 $0 $0
Betty Ong (Board(until) $0 $0 $0
John Chester (Board) $0 $0 $0
Diana Juettner (Board) $0 $0 $0
Emily Hamel (Board) $0 $0 $0
Dolya Srivisal Fleck (Board) $0 $0 $0
Jackie Feffer (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,638,137
Expenses
$1,383,245
Net Income
$254,892
Net Assets
$1,065,891
Notable Sources of Revenue Percent of Total Revenue
Contributions $978,223
59.7%
Program Services $618,806
37.8%
Investment Income $2,221
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $32,932
2.0%
Net Fundraising $0
Sales of Assets -$99
Net Inventory Sales $4,793
0.3%
Other Revenue $1,261
0.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $96,153
7.0%
Professional Fundraising Fees $0
Other Salaries and Wages $666,467
48.2%
Assets/Debt
Total Assets $1,164,710
Total Liabilities $98,819
Net Assets $1,065,891
Compensation
Key Employees and Officers Compensation Related Other
Alix Dunn (Executive Di) $92,759 $0 $8,391
James Blann (President) $0 $0 $0
Michael Darviche (First Vp) $0 $0 $0
David Seal (2 Nd Vice Pr) $0 $0 $0
Cathy Ludden (Exec. Commit) $0 $0 $0
Sookie Lee Kim (Treasurer) $0 $0 $0
Michael Sims (Secretary) $0 $0 $0
Lorelei Davidson (Board) $0 $0 $0
Michael Tom (Board) $0 $0 $0
Steve Gold (Board) $0 $0 $0
Naomi Haber (Board) $0 $0 $0
Tracey Kurzweil (Board) $0 $0 $0
Daphne Monnoyeur Moore (Board) $0 $0 $0
Betty Ong (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,085,531
Expenses
$1,135,232
Net Income
-$49,701
Net Assets
$775,232
Notable Sources of Revenue Percent of Total Revenue
Contributions $822,464
75.8%
Program Services $229,300
21.1%
Investment Income $3,252
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $20,019
1.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,488
0.1%
Other Revenue $9,008
0.8%
Notable Expenses Percent of Total Expenses
Executive Compensation $70,768
6.2%
Professional Fundraising Fees $0
Other Salaries and Wages $499,839
44.0%
Assets/Debt
Total Assets $1,006,757
Total Liabilities $231,525
Net Assets $775,232
Compensation
Key Employees and Officers Compensation Related Other
Lynne Molnar (Interim Exec) $70,768 $0 $0
James Blann (President) $0 $0 $0
David Seal (1 St Vice Pre) $0 $0 $0
Michael Tom (Finance Chai) $0 $0 $0
Michael Sims (Secretary/Tr) $0 $0 $0
Cathy Ludden (Member At La) $0 $0 $0
Sookie Lee Kim (Board) $0 $0 $0
Jennifer Hu Corriggio (Board) $0 $0 $0
David Isacovici (Board) $0 $0 $0
Lorelei Davidson (Board) $0 $0 $0
Michael Darviche (Board) $0 $0 $0
Tracey Kurzweil (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,334,188
Expenses
$1,232,908
Net Income
$101,280
Net Assets
$805,623
Notable Sources of Revenue Percent of Total Revenue
Contributions $798,802
59.9%
Program Services $487,276
36.5%
Investment Income $9,795
0.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $23,270
1.7%
Net Fundraising $535
0.0%
Sales of Assets $0
Net Inventory Sales $6,934
0.5%
Other Revenue $7,576
0.6%
Notable Expenses Percent of Total Expenses
Executive Compensation $107,289
8.7%
Professional Fundraising Fees $0
Other Salaries and Wages $534,806
43.4%
Assets/Debt
Total Assets $866,887
Total Liabilities $61,264
Net Assets $805,623
Compensation
Key Employees and Officers Compensation Related Other
Margaret Tjimos Goldberg (Prior Exec D) $96,500 $0 $29,485
James Blann (President) $0 $0 $0
David Seal (1 St Vice Pre) $0 $0 $0
Michael Tom (Treasurer) $0 $0 $0
Michael Sims (Secretary) $0 $0 $0
Cathy Ludden (Member At La) $0 $0 $0
Sookie Lee Kim (Board) $0 $0 $0
Jennifer Hu Corriggio (Board) $0 $0 $0
David Isacovici (Board) $0 $0 $0
Yasmin Pacia (Board) $0 $0 $0
Troy Lipp (Board) $0 $0 $0
Lorelei Davidson (Board) $0 $0 $0
Samuel Cooper (Board) $0 $0 $0
Kleber Quiroz (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,235,390
Expenses
$1,149,598
Net Income
$85,792
Net Assets
$678,281
Notable Sources of Revenue Percent of Total Revenue
Contributions $741,024
60.0%
Program Services $448,727
36.3%
Investment Income $3,223
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $26,488
2.1%
Net Fundraising $4,713
0.4%
Sales of Assets $372
0.0%
Net Inventory Sales $7,821
0.6%
Other Revenue $3,022
0.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $112,605
9.8%
Professional Fundraising Fees $0
Other Salaries and Wages $587,640
51.1%
Assets/Debt
Total Assets $728,584
Total Liabilities $50,303
Net Assets $678,281
Compensation
Key Employees and Officers Compensation Related Other
Margaret Tjimos Goldberg (Executive Di) $99,145 $0 $37,017
Cathy Ludden (President) $0 $0 $0
Sookie Lee Kim (Vice Preside) $0 $0 $0
James Blann (Vice Preside) $0 $0 $0
Michael Sims (Secretary) $0 $0 $0
Michael Tom (Treasurer) $0 $0 $0
Jennifer Hu Corriggio (Board) $0 $0 $0
David Isacovici (Board) $0 $0 $0
David Seal (Board) $0 $0 $0
Yasmin Pacia (Board) $0 $0 $0
Troy Lipp (Board) $0 $0 $0
Lorelei Davidson (Board) $0 $0 $0
Samuel Cooper (Board) $0 $0 $0
Dan Lemons (Board) $0 $0 $0
Kleber Quiroz (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,219,198
Expenses
$1,173,649
Net Income
$45,549
Net Assets
$595,527
Notable Sources of Revenue Percent of Total Revenue
Contributions $735,467
60.3%
Program Services $458,378
37.6%
Investment Income $2,052
0.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $5,490
0.5%
Sales of Assets $0
Net Inventory Sales $6,927
0.6%
Other Revenue $10,884
0.9%
Notable Expenses Percent of Total Expenses
Executive Compensation $111,000
9.5%
Professional Fundraising Fees $0
Other Salaries and Wages $614,692
52.4%
Assets/Debt
Total Assets $639,121
Total Liabilities $43,594
Net Assets $595,527
Compensation
Key Employees and Officers Compensation Related Other
Margaret Tjimos Goldberg (Executive Di) $105,533 $0 $34,511
Cathy Ludden (President) $0 $0 $0
Michael Sims (Vice Preside) $0 $0 $0
Sookie Lee Kim (Vice Preside) $0 $0 $0
Michael Tom (Treasurer) $0 $0 $0
Jennifer Hu Corriggio (Secretary) $0 $0 $0
Robert Barron (Board) $0 $0 $0
David Isacovici (Board) $0 $0 $0
David Seal (Board) $0 $0 $0
Yasmin Pacia (Board) $0 $0 $0
Troy Lipp (Board) $0 $0 $0
Lorelei Davidson Thompson (Board) $0 $0 $0
Samuel Cooper (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,158,174
Expenses
$1,128,255
Net Income
$29,919
Net Assets
$532,688
Notable Sources of Revenue Percent of Total Revenue
Contributions $698,143
60.3%
Program Services $446,069
38.5%
Investment Income $2,075
0.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$10,188
Sales of Assets $0
Net Inventory Sales $7,539
0.7%
Other Revenue $14,536
1.3%
Notable Expenses Percent of Total Expenses
Executive Compensation $110,990
9.8%
Professional Fundraising Fees $0
Other Salaries and Wages $611,357
54.2%
Assets/Debt
Total Assets $605,239
Total Liabilities $72,551
Net Assets $532,688
Compensation
Key Employees and Officers Compensation Related Other
Margaret Tjimos Goldberg (Executive Di) $104,623 $0 $31,492
Cathy Ludden (President) $0 $0 $0
Michael Sims (Vice Preside) $0 $0 $0
Jennifer Hu Corriggio (Secretary) $0 $0 $0
Michael Tom (Treasurer) $0 $0 $0
Robert Barron (Board) $0 $0 $0
Jason Klein (Board) $0 $0 $0
James Blann (Board) $0 $0 $0
Sookie Lee Kim (Board) $0 $0 $0
Yasmin Pacia (Board) $0 $0 $0
Betsy Mccormack (Board) $0 $0 $0
Lorelei Davidson Thompson (Board) $0 $0 $0
Samuel Cooper (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,194,767
Expenses
$1,139,920
Net Income
$54,847
Net Assets
$495,542
Notable Sources of Revenue Percent of Total Revenue
Contributions $741,590
62.1%
Program Services $439,942
36.8%
Investment Income $1,188
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$6,466
Sales of Assets $0
Net Inventory Sales $6,010
0.5%
Other Revenue $12,503
1.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $110,888
9.7%
Professional Fundraising Fees $0
Other Salaries and Wages $584,002
51.2%
Assets/Debt
Total Assets $547,253
Total Liabilities $51,711
Net Assets $495,542
Compensation
Key Employees and Officers Compensation Related Other
Margaret Tjimos Goldberg (Executive Di) $106,064 $0 $29,410
Bennett Fradkin (Board) $0 $0 $0
David Cautin (Board) $0 $0 $0
Jonathan Borg (1 St Vice Pre) $0 $0 $0
Cathy Ludden (President) $0 $0 $0
James E Nottingham Iii (Board) $0 $0 $0
Robert Barron (Board) $0 $0 $0
Jason Klein (Board) $0 $0 $0
Michael Sims (2 Nd Vice Pre) $0 $0 $0
Aaron Soury (Board) $0 $0 $0
Sookie Lee Kim (Board) $0 $0 $0
Michael Tom (Treasurer) $0 $0 $0
Ernest Csak (Board) $0 $0 $0
Jennifer Hu Corriggio (Secretary) $0 $0 $0
Betsy Mccormack (Board) $0 $0 $0
Lorelei Davidson Thompson (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,098,633
Expenses
$1,145,763
Net Income
-$47,130
Net Assets
$440,695
Notable Sources of Revenue Percent of Total Revenue
Contributions $606,876
55.2%
Program Services $457,602
41.7%
Investment Income $897
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $627
0.1%
Sales of Assets $8,061
0.7%
Net Inventory Sales $6,234
0.6%
Other Revenue $18,336
1.7%
Notable Expenses Percent of Total Expenses
Executive Compensation $101,796
8.9%
Professional Fundraising Fees $0
Other Salaries and Wages $618,964
54.0%
Assets/Debt
Total Assets $519,978
Total Liabilities $79,283
Net Assets $440,695
Compensation
Key Employees and Officers Compensation Related Other
Margaret Tjimos Goldberg (Executive Di) $99,005 $0 $24,733
Bennett Fradkin (President) $0 $0 $0
Andrew Schriever (1 St Vice Pre) $0 $0 $0
David Cautin (2 Nd Vice Pre) $0 $0 $0
Jonathan Borg (Secretary) $0 $0 $0
Monika Granholm (Board) $0 $0 $0
Michael Darviche (Board) $0 $0 $0
Cathy Ludden (Board) $0 $0 $0
James E Nottingham Iii (Board) $0 $0 $0
Robert Barron (Board) $0 $0 $0
Jason Klein (Board) $0 $0 $0
Michael Sims (Board) $0 $0 $0
Aaron Soury (Board) $0 $0 $0
Sookie Lee Kim (Board) $0 $0 $0
Michael Tom (Treasurer) $0 $0 $0
Miriam Widmann (Board) $0 $0 $0
Ernest Csak (Board) $0 $0 $0
Sanjay Singla (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,100,738
Expenses
$1,064,013
Net Income
$36,725
Net Assets
$484,050
Notable Sources of Revenue Percent of Total Revenue
Contributions $616,148
56.0%
Program Services $450,004
40.9%
Investment Income $1,640
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $7,195
0.7%
Sales of Assets $0
Net Inventory Sales $7,021
0.6%
Other Revenue $18,730
1.7%
Notable Expenses Percent of Total Expenses
Executive Compensation $118,080
11.1%
Professional Fundraising Fees $0
Other Salaries and Wages $572,253
53.8%
Assets/Debt
Total Assets $593,780
Total Liabilities $109,730
Net Assets $484,050
Compensation
Key Employees and Officers Compensation Related Other
Margaret Tjimos Goldberg (Executive Di) $92,236 $0 $33,410
Bennett Fradkin (President) $0 $0 $0
Andrew Schriever (1 St Vice Pre) $0 $0 $0
David Cautin (2 Nd Vice Pre) $0 $0 $0
Robert Dazi (Board) $0 $0 $0
Jonathan Borg (Secretary) $0 $0 $0
Monika Granholm (Board) $0 $0 $0
Michael Darviche (Board) $0 $0 $0
Roy Hassel (Board) $0 $0 $0
Cathy Ludden (Board) $0 $0 $0
James E Nottingham Iii (Board) $0 $0 $0
Robert Barron (Board) $0 $0 $0
Jason Klein (Board) $0 $0 $0
Michael Sims (Board) $0 $0 $0
Aaron Soury (Board) $0 $0 $0
Sookie Lee Kim (Board) $0 $0 $0
Michael Tom (Treasurer) $0 $0 $0
Miriam Widmann (Board) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$915,462
Expenses
$1,024,457
Net Income
-$108,995
Net Assets
$446,627
Notable Sources of Revenue Percent of Total Revenue
Contributions $500,247
54.6%
Program Services $387,225
42.3%
Investment Income $1,800
0.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $8,850
1.0%
Other Revenue $17,340
1.9%
Notable Expenses Percent of Total Expenses
Executive Compensation $77,469
7.6%
Professional Fundraising Fees $0
Other Salaries and Wages $514,418
50.2%
Assets/Debt
Total Assets $537,979
Total Liabilities $91,352
Net Assets $446,627

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$973,359
Expenses
$946,897
Net Income
$26,462
Net Assets
$554,169
Notable Sources of Revenue Percent of Total Revenue
Contributions $539,707
55.4%
Program Services $405,239
41.6%
Investment Income $1,331
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $7,656
0.8%
Other Revenue $19,426
2.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $107,273
11.3%
Professional Fundraising Fees $0
Other Salaries and Wages $505,301
53.4%
Assets/Debt
Total Assets $651,152
Total Liabilities $96,983
Net Assets $554,169

Document Links

Fiscal Year Ending Dec.
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2003

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2002

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2001

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

About This Data

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

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Types of Nonprofits

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