Compensation 990
OrganizationsEmployeesBoard MembersGrantsContractorsTop RankingsPricing

Stay updated on 990 organization compensation

© 2026 Civic Register LLC

Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

About•Report a discrepancy•Your privacy choices
Employees The Union of Concerned Scientists Inc. Adam Markham

Adam Markham

Highest compensated employee

Deputy Director, Climate at The Union of Concerned Scientists Inc.

Fiscal year ended September 30, 2024. Published on January 25, 2026.

$243,233
2024

Total compensation

Adam Markham has been listed as an employee of The Union of Concerned Scientists Inc. in Form 990 filings since fiscal year 2022. Total compensation for Adam Markham has increased by 16.6% from 2022 to 2024.

Annual compensation details

$243,233
-4.8%
Deputy Director, Climate
2024
$186k org
40 hrs/wk
$58k other
--
$255,574
+22.5%
Deputy Director C&E
2023
$201k org
40 hrs/wk
$56k other
--

Total compensation by year

Compare the compensation of Adam Markham to:

2024

Other employees at The Union of Concerned Scientists Inc.

Johanna Chao Kreilick
President and Chief Executive Officer
$404,305
$353,104 from orgNo related comp$51,201 other
Pallavi Phartiyal
Vice President, Programs, Policy and Advocacy
$301,273
$266,083 from orgNo related comp$35,190 other
Suzanne Shaw
Chief Communications Officer
$287,080
$229,124 from orgNo related comp$57,956 other
Jarasa Mangkorn Kanok
Chief of Strategic Planning
$284,725
$231,675 from orgNo related comp$53,050 other
Oluseto Adeyefa
Chief People Officer
$277,229
$235,450 from orgNo related comp$41,779 other
Sonja Spears
Chief Justice and Equity Officer
$274,260
$225,901 from orgNo related comp$48,359 other
Tara Drozdeniko
Program Director, Global Security
$244,514
$184,126 from orgNo related comp$60,388 other
Juliet Christian Smith
Program Director, Western States
$240,216
$215,108 from orgNo related comp$25,108 other
Tracy Donahoe
Director, Planned Giving
$233,037
$180,163 from orgNo related comp$52,874 other
Loading rankings…
Loading related profiles…

Revisions to this profile

January 25, 2026:
2024 The Union of Concerned Scientists Inc. 990 published
January 25, 2026:
2023 The Union of Concerned Scientists Inc. 990 published
January 25, 2026:
2022 The Union of Concerned Scientists Inc. 990 published

Get an email update when compensation for Adam Markham is updated

Related Jobs

View more jobs
Powered by Talroo
Report a discrepancy →
$208,603
Deputy Director C&E
2022
$171k org
40 hrs/wk
$39k other
--

Other people named Adam Markham

2024
Board Member
Adam Markham
Cedarburg Education Foundation Inc.
$0
Board Member
Adam Markham
United States National Committee of the International Council on Monum & Sites
$0