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Natural Stone Institute

Organization summary

Type of Nonprofit

Designated as a Business leagues, chambers of commerce, real estate boards, etc, created for the improvement of business conditions.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$3.38M (2023)

Expenses
$3.35M (2023)

Total Assets
$4.2M (2023)

Total Liabilities
$1.14M (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
$3,380,681
Expenses
$3,351,307
Net Income
$29,374
Net Assets
$3,058,552
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,680,788
49.7%
Program Services $1,601,559
47.4%
Investment Income $92,539
2.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $5,795
0.2%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $214,254
6.4%
Professional Fundraising Fees $0
Other Salaries and Wages $1,313,896
39.2%
Assets/Debt
Total Assets $4,199,896
Total Liabilities $1,141,344
Net Assets $3,058,552
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Chief Executive Officer) $214,254 $0 $30,233
Badia Ontra (Immediate Past President) $0 $0 $0
Duane Naquin (President) $0 $0 $0
Katie Jensen (Vice President) $0 $0 $0
Blake Christensen (Director) $0 $0 $0
Evan Cohen (Treasurer) $0 $0 $0
Filippo Emanuel (Director) $0 $0 $0
Jeff Erickson (Secretary) $0 $0 $0
Darrell Petit (Director) $0 $0 $0
Amit Gupta (Director) $0 $0 $0
Jonathan Mitnick (Director) $0 $0 $0
Sam Arcot (Director) $0 $0 $0
Sal Banchitta (Director) $0 $0 $0
Irini Papagiannouli (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$3,312,010
Expenses
$3,039,204
Net Income
$272,806
Net Assets
$2,705,437
Notable Sources of Revenue Percent of Total Revenue
Contributions $588,282
17.8%
Program Services $2,693,406
81.3%
Investment Income $63,405
1.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$33,083
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $207,942
6.8%
Professional Fundraising Fees $0
Other Salaries and Wages $1,250,175
41.1%
Assets/Debt
Total Assets $3,618,705
Total Liabilities $913,268
Net Assets $2,705,437
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Chief Executive Officer) $207,942 $0 $30,135
Michael Picco (Immediate Past President) $0 $0 $0
Badia Ontra (President) $0 $0 $0
Duane Naquin (Vice President) $0 $0 $0
Katie Jensen (Treasurer) $0 $0 $0
Blake Christensen (Director) $0 $0 $0
Evan Cohen (Secretary) $0 $0 $0
Filippo Emanuel (Director) $0 $0 $0
Jeff Erickson (Director) $0 $0 $0
Darrel Pitt (Director) $0 $0 $0
Amit Gupta (Director) $0 $0 $0
Ali Kader (Director) $0 $0 $0
Jonathan Mitnick (Director) $0 $0 $0
Sam Arcot (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,903,068
Expenses
$2,547,718
Net Income
$355,350
Net Assets
$2,805,199
Notable Sources of Revenue Percent of Total Revenue
Contributions $404,200
13.9%
Program Services $2,303,030
79.3%
Investment Income $52,154
1.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $143,684
4.9%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $211,028
8.3%
Professional Fundraising Fees $0
Other Salaries and Wages $1,048,854
41.2%
Assets/Debt
Total Assets $4,154,749
Total Liabilities $1,349,550
Net Assets $2,805,199
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Chief Executive Officer) $211,028 $0 $27,857
Michael Picco (President) $0 $0 $0
Robert Zavagno (Past President) $0 $0 $0
Badia Ontra (Vice President) $0 $0 $0
Duane Naquin (Treasurer) $0 $0 $0
Katie Jensen (Secretary) $0 $0 $0
Herwig Callewier (Director) $0 $0 $0
Blake Christensen (Director) $0 $0 $0
Evan Cohen (Director) $0 $0 $0
Leonardo De Tatagiba (Director) $0 $0 $0
Jeff Erickson (Director) $0 $0 $0
Mariavittoria Grassi (Director) $0 $0 $0
Amit Gupta (Director) $0 $0 $0
Ali Kader (Director) $0 $0 $0
Jonathan Mitnick (Director) $0 $0 $0
Marcella Prado (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,495,042
Expenses
$2,433,540
Net Income
$61,502
Net Assets
$2,286,179
Notable Sources of Revenue Percent of Total Revenue
Contributions $80,669
3.2%
Program Services $2,321,666
93.1%
Investment Income $53,416
2.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $39,291
1.6%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $214,599
8.8%
Professional Fundraising Fees $0
Other Salaries and Wages $979,686
40.3%
Assets/Debt
Total Assets $3,520,874
Total Liabilities $1,234,695
Net Assets $2,286,179
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Chief Executive Officer) $214,599 $0 $26,661
Greg Osterhout (Past President) $0 $0 $0
Robert Zavagno (President) $0 $0 $0
Mike Picco (Vice President) $0 $0 $0
Herwig Callewier (Director) $0 $0 $0
Evan Cohen (Director) $0 $0 $0
Leonardo De Tatagiba (Director) $0 $0 $0
Jeff Erickson (Director) $0 $0 $0
Mariavittoria Grassi (Director) $0 $0 $0
Ali Kader (Director) $0 $0 $0
Bruce Knaphus (Director) $0 $0 $0
Jonathan Mitnick (Director) $0 $0 $0
Duane Naquin (Secretary) $0 $0 $0
Badia Ontra (Treasurer) $0 $0 $0
Katie Jensen (Director) $0 $0 $0
Marcella Prado (Director) $0 $0 $0
Josh Zhang (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,802,462
Expenses
$2,851,385
Net Income
-$48,923
Net Assets
$2,093,440
Notable Sources of Revenue Percent of Total Revenue
Contributions $104,960
3.7%
Program Services $2,644,257
94.4%
Investment Income $55,590
2.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$2,345
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $234,733
8.2%
Professional Fundraising Fees $0
Other Salaries and Wages $736,712
25.8%
Assets/Debt
Total Assets $3,011,163
Total Liabilities $917,723
Net Assets $2,093,440
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Chief Executive Officer) $234,733 $0 $25,620
Duane Naquin (Director) $1,600 $0 $0
Greg Osterhout (President) $0 $0 $0
Robert Zavagno (Vice President) $0 $0 $0
David Carnevale (Past President) $0 $0 $0
Mike Picco (Secretary) $0 $0 $0
Kathy Spanier (Treasurer) $0 $0 $0
Herwig Callewier (Director) $0 $0 $0
Evan Cohen (Director) $0 $0 $0
Leonardo De Tatagiba (Director) $0 $0 $0
Mariavittoria Grassi (Director) $0 $0 $0
Ali Kader (Director) $0 $0 $0
Bruce Knaphus (Director) $0 $0 $0
Joshua Levinson (Director) $0 $0 $0
Badia Ontra (Director) $0 $0 $0
Katie Jensen (Director) $0 $0 $0
Marcella Prado (Director) $0 $0 $0
Bernard Van Etten Iii (Director) $0 $0 $0
Josh Zhang (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$3,142,703
Expenses
$3,229,555
Net Income
-$86,852
Net Assets
$1,861,233
Notable Sources of Revenue Percent of Total Revenue
Contributions $427,900
13.6%
Program Services $2,657,080
84.5%
Investment Income $57,982
1.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$259
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $168,540
5.2%
Professional Fundraising Fees $0
Other Salaries and Wages $758,833
23.5%
Assets/Debt
Total Assets $2,643,796
Total Liabilities $782,563
Net Assets $1,861,233

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,566,656
Expenses
$2,564,729
Net Income
$1,927
Net Assets
$2,051,664
Notable Sources of Revenue Percent of Total Revenue
Contributions $355,233
13.8%
Program Services $2,157,018
84.0%
Investment Income $55,021
2.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$616
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $170,260
6.6%
Professional Fundraising Fees $0
Other Salaries and Wages $516,729
20.1%
Assets/Debt
Total Assets $2,928,696
Total Liabilities $877,032
Net Assets $2,051,664
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Executive Vice President) $163,060 $0 $7,200
Charles Muehlbaue (Hce) $105,498 $0 $0
David Castellucci (Past President) $0 $0 $0
Brenda Edwards (Director) $0 $0 $0
Jesus Gonzalez Iv (Director) $0 $0 $0
Jon Lancto (President) $0 $0 $0
Michael P Schlough (Director) $0 $0 $0
David Carnevale (Vice President) $0 $0 $0
Robert Zavagno (Treasurer/Secretary) $0 $0 $0
Joshua Levinson (Director) $0 $0 $0
Bernard Van Etten Iii (Director) $0 $0 $0
Bruce Knaphus (Director) $0 $0 $0
Badia Ontra (Director) $0 $0 $0
Michael Picco (Director) $0 $0 $0
Herwig Callewier (Director) $0 $0 $0
Ali Kader (Director) $0 $0 $0
Duane Naquin (Director) $0 $0 $0
Rob Teel (Past President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,205,090
Expenses
$2,360,927
Net Income
-$155,837
Net Assets
$1,908,544
Notable Sources of Revenue Percent of Total Revenue
Contributions $72,435
3.3%
Program Services $2,077,646
94.2%
Investment Income $60,648
2.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$5,639
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $167,074
7.1%
Professional Fundraising Fees $0
Other Salaries and Wages $467,644
19.8%
Assets/Debt
Total Assets $2,553,380
Total Liabilities $644,836
Net Assets $1,908,544
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Executive Vice President) $159,274 $0 $7,800
Dan Rea (Past President) $0 $0 $0
David Castellucci (President) $0 $0 $0
Brenda Edwards (Director) $0 $0 $0
Jesus Gonzalez Iv (Director) $0 $0 $0
Arik Grebelsky (Director) $0 $0 $0
Jon Lancto (Vice President) $0 $0 $0
Claus F Larsen (Director) $0 $0 $0
Michael P Schlough (Director) $0 $0 $0
David Carnevale (Secretary) $0 $0 $0
Robert Zavagno (Treasurer) $0 $0 $0
Joshua Levinson (Director) $0 $0 $0
Bernard Van Etten Iii (Director) $0 $0 $0
Bruce Knaphus (Director) $0 $0 $0
Badia Ontra (Director) $0 $0 $0
Michael Picco (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,327,197
Expenses
$1,867,881
Net Income
$459,316
Net Assets
$1,983,927
Notable Sources of Revenue Percent of Total Revenue
Contributions $280,903
12.1%
Program Services $1,987,617
85.4%
Investment Income $59,343
2.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$666
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $165,717
8.9%
Professional Fundraising Fees $0
Other Salaries and Wages $437,480
23.4%
Assets/Debt
Total Assets $2,655,096
Total Liabilities $671,169
Net Assets $1,983,927
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Executive Vice President) $157,917 $0 $7,800
Tony Malisani (Past President) $0 $0 $0
Dan Rea (President) $0 $0 $0
David Castellucci (Vice President) $0 $0 $0
Brenda Edwards (Director) $0 $0 $0
Jesus Gonzalez Iv (Director) $0 $0 $0
Arik Grebelsky (Director) $0 $0 $0
Jon Lancto (Secretary) $0 $0 $0
Claus F Larsen (Director) $0 $0 $0
Patrick Perus (Director) $0 $0 $0
Michael P Schlough (Director) $0 $0 $0
David Carnevale (Treasurer) $0 $0 $0
Robert Zavagno (Director) $0 $0 $0
Joshua Levinson (Director) $0 $0 $0
Bernard Van Etten Iii (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,864,257
Expenses
$1,695,073
Net Income
$169,184
Net Assets
$1,573,074
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $1,819,837
97.6%
Investment Income $51,913
2.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$7,493
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $162,675
9.6%
Professional Fundraising Fees $0
Other Salaries and Wages $402,573
23.7%
Assets/Debt
Total Assets $2,234,772
Total Liabilities $661,698
Net Assets $1,573,074
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Executive Vice President) $150,490 $0 $12,185
Jonathan Zanger (Past President) $0 $0 $0
Tony Malisani (President) $0 $0 $0
Dan Rea (Vice President) $0 $0 $0
David Castellucci (Secretary) $0 $0 $0
Brenda Edwards (Director) $0 $0 $0
Jesus Gonzalez Iv (Director) $0 $0 $0
Arik Grebelsky (Director) $0 $0 $0
Jon Lancto (Treasurer) $0 $0 $0
Claus F Larsen (Director) $0 $0 $0
Patrick Perus (Director) $0 $0 $0
Michael P Schlough (Director) $0 $0 $0
David Carnevale (Director) $0 $0 $0
Robert Zavagno (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,748,604
Expenses
$1,629,601
Net Income
$119,003
Net Assets
$1,355,948
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $1,700,034
97.2%
Investment Income $50,982
2.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$2,412
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $146,685
9.0%
Professional Fundraising Fees $0
Other Salaries and Wages $437,651
26.9%
Assets/Debt
Total Assets $2,013,375
Total Liabilities $657,427
Net Assets $1,355,948
Compensation
Key Employees and Officers Compensation Related Other
James Hieb (Executive Vice President) $137,700 $0 $8,985
Jonathan Zanger (President) $0 $0 $0
Tony Malisani (Vice President) $0 $0 $0
Michael A Twiss (Past President) $0 $0 $0
Dan Rea (Secretary) $0 $0 $0
David Castellucci (Treasurer) $0 $0 $0
Brenda Edwards (Director) $0 $0 $0
Jesus Gonzalez Iv (Director) $0 $0 $0
Arik Grebelsky (Director) $0 $0 $0
Rodney Harvey (Director) $0 $0 $0
Jon Lancto (Director) $0 $0 $0
Claus F Larsen (Director) $0 $0 $0
Patrick Perus (Director) $0 $0 $0
Michael P Schlough (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,786,437
Expenses
$1,937,332
Net Income
-$150,895
Net Assets
$1,218,558
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $1,720,630
96.3%
Investment Income $60,470
3.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $5,337
0.3%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $325,501
16.8%
Professional Fundraising Fees $0
Other Salaries and Wages $322,630
16.7%
Assets/Debt
Total Assets $1,791,380
Total Liabilities $572,822
Net Assets $1,218,558

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,545,412
Expenses
$1,600,493
Net Income
-$55,081
Net Assets
$1,348,046
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $1,496,477
96.8%
Investment Income $49,435
3.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$500
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $209,744
13.1%
Professional Fundraising Fees $0
Other Salaries and Wages $400,857
25.0%
Assets/Debt
Total Assets $1,932,081
Total Liabilities $584,035
Net Assets $1,348,046

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.
2006

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

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.

Which Organizations Are Here?

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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For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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