Coalition For Archaeological Synthesis

Tucson, AZ
Tax-exempt since June 2002
EIN: 86-1034071

Receive an email when new data is available for this organization.

Type of Nonprofit

Designated as a 501(c)(3) 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 / Research Institutes and/or Public Policy Analysis (NTEE)

Donations to this organization are tax deductible.

Revenue

$214k (2024)

Expenses

$146k (2024)

Total Assets

$368k (2024)

Total Liabilities

$25.6k (2024)

Source: Form 990 tax filings from 2011 to 2024

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.
2024

Revenue

$214,441

Expenses

$145,671

Net Income

$68,770

Net Assets

$342,505

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$147,123	68.6%
Program Services	$45,940	21.4%
Investment Income	$11,369	5.3%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$10,009	4.7%
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$80,696	55.4%

Assets/Debt
Total Assets	$368,076
Total Liabilities	$25,571
Net Assets	$342,505

Compensation

Key Employees and Officers	Compensation	Related	Other
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkeiser (Director)	$0	$0	$0
Terry H Klein (Executive Di)	$0	$0	$0

+ View more people

990

Filed on May 15, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2023

Revenue

$301,902

Expenses

$414,479

Net Income

-$112,577

Net Assets

$322,408

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$185,365	61.4%
Program Services	$117,758	39.0%
Investment Income	$9,883	3.3%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	-$11,104
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$295,155	71.2%

Assets/Debt
Total Assets	$365,539
Total Liabilities	$43,131
Net Assets	$322,408

Compensation

Key Employees and Officers	Compensation	Related	Other
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkeiser (Director)	$0	$0	$0
Terry H Klein (Executive Di)	$0	$0	$0

+ View more people

990

Filed on May 14, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2022

Revenue

$364,652

Expenses

$509,814

Net Income

-$145,162

Net Assets

$405,961

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$258,469	70.9%
Program Services	$98,774	27.1%
Investment Income	$7,866	2.2%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	-$457
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$326,388	64.0%

Assets/Debt
Total Assets	$469,216
Total Liabilities	$63,255
Net Assets	$405,961

Compensation

Key Employees and Officers	Compensation	Related	Other
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkeiser (Director)	$0	$0	$0
Terry H Klein (Executive Di)	$0	$0	$0

+ View more people

990

Filed on Nov. 1, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2021

Revenue

$791,953

Expenses

$589,263

Net Income

$202,690

Net Assets

$674,676

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$561,881	70.9%
Program Services	$220,109	27.8%
Investment Income	$9,963	1.3%
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	$333,705	56.6%

Assets/Debt
Total Assets	$703,967
Total Liabilities	$29,291
Net Assets	$674,676

Compensation

Key Employees and Officers	Compensation	Related	Other
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkeiser (Director)	$0	$0	$0
Terry H Klein (Executive Di)	$0	$0	$0

+ View more people

990

Filed on Nov. 14, 2022

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2020

Revenue

$714,812

Expenses

$596,767

Net Income

$118,045

Net Assets

$472,843

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$406,737	56.9%
Program Services	$304,965	42.7%
Investment Income	$3,110	0.4%
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	$368,975	61.8%

Assets/Debt
Total Assets	$502,010
Total Liabilities	$29,167
Net Assets	$472,843

Compensation

Key Employees and Officers	Compensation	Related	Other
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkeiser (Director)	$0	$0	$0
Terry H Klein (Executive Di)	$0	$0	$0

+ View more people

990

Filed on Oct. 15, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2019

Revenue

$962,601

Expenses

$708,433

Net Income

$254,168

Net Assets

$357,437

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$337,261	35.0%
Program Services	$619,684	64.4%
Investment Income	$5,656	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	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$305,890	43.2%

Assets/Debt
Total Assets	$416,130
Total Liabilities	$58,693
Net Assets	$357,437

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Terry H Klein (Executive Di)	$106,855	$0	$0
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkeiser (Director)	$0	$0	$0

+ View more people

990

Filed on Nov. 16, 2020

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2018

Revenue

$1,012,222

Expenses

$950,682

Net Income

$61,540

Net Assets

$111,861

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$70,500	7.0%
Program Services	$936,264	92.5%
Investment Income	$5,458	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	$104,401	11.0%
Professional Fundraising Fees	$0
Other Salaries and Wages	$197,219	20.7%

Assets/Debt
Total Assets	$266,102
Total Liabilities	$154,241
Net Assets	$111,861

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Terry H Klein (Executive Director)	$104,401	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkheiser (Director)	$0	$0	$0
Jeffrey Altschul (President)	$0	$0	$0

+ View more people

990

Filed on Nov. 13, 2019

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2017

Revenue

$489,034

Expenses

$482,654

Net Income

$6,380

Net Assets

$59,590

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$0
Program Services	$483,810	98.9%
Investment Income	$5,224	1.1%
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	$109,786	22.7%
Professional Fundraising Fees	$0
Other Salaries and Wages	$171,319	35.5%

Assets/Debt
Total Assets	$206,603
Total Liabilities	$147,013
Net Assets	$59,590

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Terry H Klein (Executive Director)	$109,786	$0	$0
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Marion Werkheiser (Director)	$0	$0	$0

+ View more people

990

Filed on Nov. 14, 2018

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2016

Revenue

$696,549

Expenses

$675,337

Net Income

$21,212

Net Assets

$48,878

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$1,850	0.3%
Program Services	$691,173	99.2%
Investment Income	$3,526	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	$112,094	16.6%
Professional Fundraising Fees	$0
Other Salaries and Wages	$193,878	28.7%

Assets/Debt
Total Assets	$242,079
Total Liabilities	$193,201
Net Assets	$48,878

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Terry H Klein (Executive Director)	$112,094	$0	$0
Jeffrey Altschul (President)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Susan Chandler (Director)	$0	$0	$0
Marion Werkheiser (Director)	$0	$0	$0

+ View more people

990

Filed on Nov. 7, 2017

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2015

Revenue

$734,340

Expenses

$638,616

Net Income

$95,724

Net Assets

$24,349

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$100	0.0%
Program Services	$735,968	> 100%
Investment Income	$4,651	0.6%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	-$6,379

Notable Expenses		Percent of Total Expenses
Executive Compensation	$107,525	16.8%
Professional Fundraising Fees	$0
Other Salaries and Wages	$224,944	35.2%

Assets/Debt
Total Assets	$282,175
Total Liabilities	$257,826
Net Assets	$24,349

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2014

Revenue

$606,117

Expenses

$594,961

Net Income

$11,156

Net Assets

-$71,377

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$2,200	0.4%
Program Services	$602,262	99.4%
Investment Income	$4,369	0.7%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	-$2,714

Notable Expenses		Percent of Total Expenses
Executive Compensation	$92,801	15.6%
Professional Fundraising Fees	$0
Other Salaries and Wages	$202,779	34.1%

Assets/Debt
Total Assets	$214,538
Total Liabilities	$285,915
Net Assets	-$71,377

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2013

Revenue

$729,107

Expenses

$767,725

Net Income

-$38,618

Net Assets

-$82,533

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$10,200	1.4%
Program Services	$716,796	98.3%
Investment Income	$1,640	0.2%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$471	0.1%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$99,940	13.0%
Professional Fundraising Fees	$0
Other Salaries and Wages	$265,840	34.6%

Assets/Debt
Total Assets	$211,327
Total Liabilities	$293,860
Net Assets	-$82,533

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Terry H Klein (Executive Director)	$99,940	$0	$0
Jeffrey Altschul (President)	$0	$0	$0
Marion Werkheiser (Director)	$0	$0	$0
Jeremy A Sabloff (Director)	$0	$0	$0
Keith Kintigh (Director)	$0	$0	$0
Charles M Niquette (Director)	$0	$0	$0
Susan Chandler (Director)	$0	$0	$0

+ View more people

990

Filed on Nov. 17, 2014

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2012

Revenue

$781,595

Expenses

$965,996

Net Income

-$184,401

Net Assets

-$43,915

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$30,200	3.9%
Program Services	$751,387	96.1%
Investment Income	$8	0.0%
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	$107,078	11.1%
Professional Fundraising Fees	$0
Other Salaries and Wages	$344,618	35.7%

Assets/Debt
Total Assets	$264,029
Total Liabilities	$307,944
Net Assets	-$43,915

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Revenue

$1,007,581

Expenses

$989,517

Net Income

$18,064

Net Assets

$140,486

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$50,000	5.0%
Program Services	$957,574	95.0%
Investment Income	$7	0.0%
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	$116,000	11.7%
Professional Fundraising Fees	$0
Other Salaries and Wages	$370,756	37.5%

Assets/Debt
Total Assets	$361,133
Total Liabilities	$220,647
Net Assets	$140,486

990

Primary tax return for a nonprofit’s activities, finances, and governance

Primary tax return for a nonprofit’s activities, finances, and governance

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is 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 »

Get the Data

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.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

See an issue with the data?

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

Updated December 5, 2025

Coalition For Archaeological Synthesis

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $214k (2024)

Expenses $146k (2024)

Total Assets $368k (2024)

Total Liabilities $25.6k (2024)

Tax Filings by Year

Fiscal Year Ending Dec. 2024

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from Form 990

Compensation

Document Links

990

Fiscal Year Ending Dec. 2019

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990

Revenue

$214k (2024)

Expenses

$146k (2024)

Total Assets

$368k (2024)

Total Liabilities

$25.6k (2024)

Fiscal Year Ending Dec.
2024

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

Fiscal Year Ending Dec.
2021

Fiscal Year Ending Dec.
2020

Fiscal Year Ending Dec.
2019

Fiscal Year Ending Dec.
2018

Fiscal Year Ending Dec.
2017

Fiscal Year Ending Dec.
2016

Fiscal Year Ending Dec.
2015

Fiscal Year Ending Dec.
2014

Fiscal Year Ending Dec.
2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2009

Fiscal Year Ending Dec.
2008

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
2006

Fiscal Year Ending Dec.
2005

Fiscal Year Ending Dec.
2004

Fiscal Year Ending Dec.
2003

Fiscal Year Ending Dec.
2002

Fiscal Year Ending Dec.
2001