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Nature Institute Inc

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: Science and Technology Research Institutes, Services / Biological, Life Science Research (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$795k (2023)

Expenses
$529k (2023)

Total Assets
$1.62M (2023)

Total Liabilities
$99.6k (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
$795,107
Expenses
$528,638
Net Income
$266,469
Net Assets
$1,521,261
Notable Sources of Revenue Percent of Total Revenue
Contributions $542,208
68.2%
Program Services $228,307
28.7%
Investment Income $21,695
2.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $2,897
0.4%
Notable Expenses Percent of Total Expenses
Executive Compensation $130,750
24.7%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,620,823
Total Liabilities $99,562
Net Assets $1,521,261
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Ex) $87,150 $0 $0
Henrike Holdrege (Senior Resea) $41,500 $0 $0
Stefan Ambrose (Board Member) $2,100 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Marisha Plotnik (Secretary) $0 $0 $0
Megan Durney (Board Member) $0 $0 $0
Allison Hoppe (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$729,283
Expenses
$529,903
Net Income
$199,380
Net Assets
$1,254,792
Notable Sources of Revenue Percent of Total Revenue
Contributions $527,109
72.3%
Program Services $193,836
26.6%
Investment Income $2,400
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $5,938
0.8%
Notable Expenses Percent of Total Expenses
Executive Compensation $122,500
23.1%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,352,963
Total Liabilities $98,171
Net Assets $1,254,792
Compensation
Key Employees and Officers Compensation Related Other
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Secretary) $0 $0 $0
Megan Durney (Board Member) $0 $0 $0
Stefan Ambrose (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$541,323
Expenses
$521,925
Net Income
$19,398
Net Assets
$1,055,412
Notable Sources of Revenue Percent of Total Revenue
Contributions $342,570
63.3%
Program Services $197,084
36.4%
Investment Income $1,669
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $240,984
46.2%
Assets/Debt
Total Assets $1,219,615
Total Liabilities $164,203
Net Assets $1,055,412
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $81,600 $0 $0
Steve Talbott (Senior Researcher) $77,600 $0 $0
Henrike Holdrege (Senior Research) $39,000 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Secretary) $0 $0 $0
Nathaniel Williams (Board Member) $0 $0 $0
Megan Durney (Board Member) $0 $0 $0
Stefan Ambrose (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$443,557
Expenses
$439,045
Net Income
$4,512
Net Assets
$1,036,013
Notable Sources of Revenue Percent of Total Revenue
Contributions $276,482
62.3%
Program Services $161,065
36.3%
Investment Income $6,010
1.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $220,359
50.2%
Assets/Debt
Total Assets $1,156,113
Total Liabilities $120,100
Net Assets $1,036,013
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $80,000 $0 $0
Steve Talbott (Senior Researcher) $76,100 $0 $0
Henrike Holdrege (Senior Research) $38,250 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Secretary) $0 $0 $0
Nathaniel Williams (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$451,094
Expenses
$418,989
Net Income
$32,105
Net Assets
$1,031,501
Notable Sources of Revenue Percent of Total Revenue
Contributions $298,528
66.2%
Program Services $147,278
32.6%
Investment Income $5,288
1.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $184,956
44.1%
Assets/Debt
Total Assets $1,098,021
Total Liabilities $66,520
Net Assets $1,031,501
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $78,500 $0 $0
Steve Talbott (Senior Researcher) $74,600 $0 $0
Henrike Holdrege (Senior Research) $37,500 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Secretary) $0 $0 $0
Nathaniel Williams (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$473,159
Expenses
$425,682
Net Income
$47,477
Net Assets
$999,396
Notable Sources of Revenue Percent of Total Revenue
Contributions $308,371
65.2%
Program Services $160,271
33.9%
Investment Income $4,517
1.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $212,680
50.0%
Assets/Debt
Total Assets $1,063,896
Total Liabilities $64,500
Net Assets $999,396
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $74,500 $0 $0
Steve Talbott (Senior Researcher) $72,400 $0 $0
Henrike Holdrege (Senior Research) $36,600 $0 $0
Nathaniel Williams (Board Member) $10,400 $0 $0
John Barnes (Secretary) $0 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Douglas Sloan (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Douglas Feick (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$453,361
Expenses
$450,108
Net Income
$3,253
Net Assets
$951,919
Notable Sources of Revenue Percent of Total Revenue
Contributions $288,290
63.6%
Program Services $162,089
35.8%
Investment Income $2,982
0.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $227,775
50.6%
Assets/Debt
Total Assets $1,022,664
Total Liabilities $70,745
Net Assets $951,919
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $73,000 $0 $0
Steve Talbott (Senior Researcher) $71,000 $0 $0
Bruno Follador (Staff Research) $57,875 $0 $0
Henrike Holdrege (Senior Research) $34,400 $0 $0
Nathaniel Williams (Board Member) $7,200 $0 $0
John Barnes (Secretary) $0 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Douglas Sloan (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Douglas Feick (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$412,786
Expenses
$407,737
Net Income
$5,049
Net Assets
$948,666
Notable Sources of Revenue Percent of Total Revenue
Contributions $297,515
72.1%
Program Services $114,109
27.6%
Investment Income $1,162
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $195,771
48.0%
Assets/Debt
Total Assets $1,056,013
Total Liabilities $107,347
Net Assets $948,666
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $71,500 $0 $0
Steve Talbott (Senior Researcher) $69,715 $0 $0
Henrike Holdrege (Senior Research) $30,892 $0 $0
John Barnes (Secretary) $0 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Douglas Sloan (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Douglas Feick (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Board Member) $0 $0 $0
Nathaniel Williams (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$397,251
Expenses
$395,684
Net Income
$1,567
Net Assets
$943,617
Notable Sources of Revenue Percent of Total Revenue
Contributions $334,594
84.2%
Program Services $60,752
15.3%
Investment Income $1,905
0.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $198,665
50.2%
Assets/Debt
Total Assets $1,010,174
Total Liabilities $66,557
Net Assets $943,617
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $71,500 $0 $0
Steve Talbott (Senior Researcher) $69,715 $0 $0
Henrike Holdrege (Senior Research) $33,700 $0 $0
John Barnes (Secretary) $0 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Douglas Sloan (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Douglas Feick (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Board Member) $0 $0 $0
Nathaniel Williams (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$371,478
Expenses
$369,547
Net Income
$1,931
Net Assets
$942,050
Notable Sources of Revenue Percent of Total Revenue
Contributions $323,537
87.1%
Program Services $46,826
12.6%
Investment Income $1,115
0.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $163,336
44.2%
Assets/Debt
Total Assets $1,018,254
Total Liabilities $76,204
Net Assets $942,050
Compensation
Key Employees and Officers Compensation Related Other
Craig Holdrege (President/Exec Dir) $71,304 $0 $0
Steve Talbott (Senior Researcher) $69,324 $0 $0
Henrike Holdrege (Senior Research) $33,300 $0 $0
John Barnes (Secretary) $0 $0 $0
Jeff Sexton (Treasurer) $0 $0 $0
Jan Kees Saltet (Board Member) $0 $0 $0
Douglas Sloan (Board Member) $0 $0 $0
Signe Schaefer (Board Member) $0 $0 $0
Douglas Feick (Board Member) $0 $0 $0
Siral Crane (Board Member) $0 $0 $0
Marisha Plotnik (Board Member) $0 $0 $0
Nathaniel Williams (Board Member) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$336,950
Expenses
$326,086
Net Income
$10,864
Net Assets
$940,119
Notable Sources of Revenue Percent of Total Revenue
Contributions $299,453
88.9%
Program Services $35,612
10.6%
Investment Income $1,885
0.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $70,368
21.6%
Professional Fundraising Fees $0
Other Salaries and Wages $133,232
40.9%
Assets/Debt
Total Assets $1,050,591
Total Liabilities $110,472
Net Assets $940,119

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$345,590
Expenses
$277,998
Net Income
$67,592
Net Assets
$926,048
Notable Sources of Revenue Percent of Total Revenue
Contributions $312,042
90.3%
Program Services $27,507
8.0%
Investment Income $6,041
1.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $69,000
24.8%
Professional Fundraising Fees $0
Other Salaries and Wages $119,720
43.1%
Assets/Debt
Total Assets $990,688
Total Liabilities $64,640
Net Assets $926,048

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$377,719
Expenses
$305,447
Net Income
$72,272
Net Assets
$858,456
Notable Sources of Revenue Percent of Total Revenue
Contributions $339,212
89.8%
Program Services $31,962
8.5%
Investment Income $6,545
1.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $67,500
22.1%
Professional Fundraising Fees $0
Other Salaries and Wages $134,227
43.9%
Assets/Debt
Total Assets $961,882
Total Liabilities $103,426
Net Assets $858,456

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.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

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Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

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