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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.

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Employees Openaq Inc. Yeonjoo Heidi Yoon

Yeonjoo Heidi Yoon

Community Engagement Officer, Acting Secretary at Openaq Inc.

Fiscal year ended December 31, 2018. Published on January 24, 2026.

$0

2018

Total compensation

Yeonjoo Heidi Yoon has been listed as an employee of Openaq Inc. in Form 990 filings since fiscal year 2018.

Annual compensation details

$0

Community Engagement Officer, Acting Secretary

2018

Compare the compensation of Yeonjoo Heidi Yoon to:

2018

Other employees at Openaq Inc.

Christa Hasenkopf

Chief Executive Officer

$80,000 from org—No other comp

Matthew Higgins

Secretary (Resigned Oct 2018)

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January 24, 2026:

2018 Openaq Inc. 990 published

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