SD Foundation

Fiscal year ending 2024. Filed on November 12, 2025.

611 Pennsylvania Avenue SE 201
Washington, District of Columbia 20003

SD Foundation (EIN: 88-2286627), also known as Voting Rights Lab, has filed an IRS Form 990 since fiscal year 2022. In its fiscal year 2024 IRS Form 990 filing, SD Foundation, a 501(c)(3) charitable organization, reported compensation for 8 out of 37 total employees. Among the employees shown here, the average compensation is $268,134. The highest compensated employee at SD Foundation is Tshombe Hubbard with fiscal year 2024 compensation of $364,469.

Revenue, expenses, and employee compensation

Revenue

$11,111,406

Expenses

$9,026,038

Employee compensation

$4,899,180

Reported Compensated Employees

＋42.2%vs 2023

Tshombe Hubbard

Chief Administrative Officer

$309,421 from orgNo related comp$55,048 other

－14.3%vs 2023

Executive Director and Director

$268,103 from orgNo related comp$15,712 other

Chief People Officer

$224,016 from orgNo related comp$41,950 other

Vice President of Law and Policy

$215,142 from orgNo related comp$50,465 other

Charlotte Olena

Vice President, Advocacy

$224,235 from orgNo related comp$22,035 other

Samantha Tarazi

Chief Operating Officer

$205,434 from orgNo related comp$39,303 other

Amanda Harrington

Vice President, Communications

$219,118 from orgNo related comp$20,540 other

Senior Director of Law and Policy

$200,020 from orgNo related comp$34,528 other

Benchmark Employee Compensation

Non-Employee Board Members

Brina Milikowsky

Contractors

Perry Undem LLC

Caplin & Drysdale

Cliftonlarsonallen LLP

Mission Statement

SD Foundation is a nonpartisan, 501(c)(3) nonprofit organization providing expert analysis and research on current and proposed election-related law.

Other organizations also named SD Foundation

Spring Valley, New York

Lutheran Social Services of SD Foundation

Sioux Falls, South Dakota

United Way of NE SD Foundation

Aberdeen, South Dakota

Revisions to this organization profile

November 12, 2025:

2024 SD Foundation 990 filed

March 27, 2025:

Amended (originally filed November 15, 2024)2023 SD Foundation 990 filed

December 14, 2023:

2022 SD Foundation 990 filed

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