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US nonprofit · EIN 133553974 · Washington, DCiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 133553974) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 30 September 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.State registers Colorado Secretary of State (17 October 2026).Licence US Federal Government public domain.How we handle data

Green Seal Inc

Donations deductible
Revenue
$3.7m
year to 30 September 2025
Expenses
$3.7m
year to 30 September 2025
Total assets
$1.6m
$745k liabilities
Net assets
$818k
assets less liabilities
Directors and trustees
8
4.5y av
Staff
22
9 volunteers
Chair observed
≥4 yrs
Nancy Hersh
Left since last filing
0
no seats appear to have opened
How am I connected?

Green Seal Inc's network

8 peoplei8 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (8). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

8 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 8 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Nancy Hersh ChairChair2021
5 yrs
Brenna WalravenVice-Chair2021
5 yrs
Courtney HolmDirector2025
1 yr
ED ChenDirector2022
4 yrs
Edward HubbardCompany secretary2020
6 yrs
Jesse LevinTreasurer2019
7 yrs
Shila WattamwarDirector2025
1 yr
Vaishali SampatDirector2022
4 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

15 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Arthur WeissmanOutgoing CEO2018
Callie TaylorDirector, Certification2025
Daniel PedersenVP of Standarts2018
Deon GlaserDir., Special Projects (End 7/2021)2021
Douglas GatlinIncoming CEO (From 1/15/18)since 2018
Jeffrey KuziemkoVP, Finance & Operationssince 2020
Mark PetruzziVP of Outreach Development2018
Mark StandlandVP of Client Services2018
Mark StanlandVP of Client Services (End 4/2019)2019
Mary SwansonVP of Certification (End 12/2020)since 2018
Mehreteab MashoCFO (End 2/2019)since 2018
Michael ChaudronVP, Customer Success2025
Patrick M ClevengerNational Partnerships Prog. Managersince 2022
Sara A RisleyVP, Certificationsince 2024
Taryn TussVP, Marketingsince 2021

Pay and hours

year to 30 September 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Douglas GatlinCEO40$244k$31k
Michael ChaudronVP, Customer Success40$181k$32k
Jeffrey KuziemkoCFO/COO40$180k$28k
Taryn TussSVP, Marketing40$162k$28k
Sara RisleyVP, Certification40$152k$8k
Callie TaylorDirector, Certification40$102k$24k
Nancy HershChair1$0
Brenna WalravenVice-Chair1$0
Jesse LevinTreasurer1$0
Edward HubbardSecretary1$0
Ed ChenDirector1$0
Vaishali SampatDirector1$0
Courtney HolmDirector1$0
Shila WattamwarDirector1$0

Colorado roster

14 listediOfficers, directors and trustees from the latest filing with the Colorado Secretary of State (document 20253017353). Titles are as filed; some entries are registered agents or custodians of records rather than board members. Source: data.colorado.gov, public domain.
NameTitle as filed
Edward HubbardSecretary
Sara A. RisleyVP, Certification
Patrick M. ClevengerBusiness Development Manager
Jeffrey KuziemkoVice President/Chief Financial Officer (CFO)
Douglas R. GatlinPresident
Ed ChenDirector
Nancy HershChair
Ben GruittDirector (Until 6/14/2024)
Brenna S. WalravenVice-Chair
Jeffrey Kuziemko
Vaishali SampatDirector
Jesse LevinTreasurer
Douglas R. GatlinPresident/CEO
Taryn TussVP, Marketing

About

Legal name
Green Seal Inc
EIN
133553974
Address
601 13th St Nw FL 12, Washington, DC, 20005-3819
State
District of Columbia
Mission
To protect human health and the environment by accelerating the adoption of products that are safer and more sustainable. (as filed on the Form 990)
Activity (NTEE)
C010 Environment
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Environment
Size band
6 (IRS master file code)
Formed
1989
Principal officer
Douglas Gatlin (as named on the Form 990)
IRS ruling date
1 December 1991
Status
Code 01 (unconditional exemption)
Form 990 filings on record
8, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥7years on the filingsJesse Levin
≥6years on the filingsEdward Hubbard
≥5years on the filingsNancy Hersh
≥5years on the filingsBrenna Walraven

Latest return

year to 30 September 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 September 2025. US dollars, as filed.
Total assets
$1.6m
Total liabilities
$745k
Net assets or fund balances
$818k
Contributions and grants received
$3k
Program service revenue
$3.7m
Employees
22
Volunteers
9

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$3.6m$3.9mDeficit $330k

As filed on the IRS Form 990. US dollars.

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
GREEN SEAL Inc. likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: DC Department of Licensing and Consumer Protection (DLCP), corporate registrations (opendata.dc.gov). Licence: CC BY 4.0. Attribution: DC DLCP. Data last fetched 18 October 2026.
State
District of Columbia
Entity type
Foreign Nonprofit Corporation
Status
Active - In Good Standing
Formed
31 May 1990
Registered agent
Universal Registered Agents, Inc. (city and state not held)