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US nonprofit · EIN 260554688 · Seattle, WAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 260554688) - 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 31 December 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

Greenhouse Gas Experts Network Inc

Donations deductible
Revenue
$4.1m
year to 31 December 2025
Expenses
$3.8m
year to 31 December 2025
Total assets
$3.9m
$788k liabilities
Net assets
$3.1m
assets less liabilities
Directors and trustees
9
7.8y av
Staff
10
employees, year to 31 December 2025
Chair observed
≥6 yrs
Ralph Strebel
Left since last filing
0
no seats appear to have opened
How am I connected?

Greenhouse Gas Experts Network Inc's network

9 peoplei9 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (9). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

9 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 9 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Ralph Strebel ChairChair2018
8 yrs
Alexa KleysteuberBoard Member2019
7 yrs
Caitlin SparksBoard Member2019
7 yrs
Craig EbertBoard Member2018
8 yrs
Darius NassiryBoard Member2018
8 yrs
KAI UWE Barani SchmidtTreasurer2018
8 yrs
Kathryn Bickel GoldmanCompany secretary2019
7 yrs
Mike BessBoard Member2018
8 yrs
Rueanna HaynesBoard Member2021
5 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

8 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Danielle VaughanDirector Opesince 2018
Jeremy SeagerDirector Pro2020
John NilesDir Carbon I2018
Keri Enright-KatoManaging Dirsince 2022
Michael GillenwaterExecutive Disince 2018
Molly WhiteEducation Disince 2020
Olga LyandresSr Project M2024
Wiley BarbourSenior Projesince 2019

Pay and hours

year to 31 December 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
Michael GillenwaterExecutive Di40$185k$25k
Keri Enright-KatoManaging Dir40$165k$21k
Molly WhiteEducation Di40$144k$25k
Olga LyandresSr Project M40$112k$4k
Kathryn Bickel GoldmanSecretary15$69k
Mike BessBoard Member15$53k
Ralph StrebelChair4$8k
Kai Uwe Barani SchmidtTreasurer2$0
Craig EbertBoard Member1$0
Alexa KleysteuberBoard Member1$0
Darius NassiryBoard Member1$0
Caitlin SparksBoard Member1$0
Rueanna HaynesBoard Member1$0

Colorado roster

12 listediOfficers, directors and trustees from the latest filing with the Colorado Secretary of State (document 20263016510). 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
Kleysteuber AlexaBoard of Director
Caitlin SparksBoard of Director
Rueanna HaynesBoard of Director
David Michael BessBoard of Director
Michael Gillenwater
Darius NassiryBoard of Director
Ralph StrebelChair
Kai Uwe B. SchmidtTreasurer
Keri Enright-KatoManaging Director
Michael GillenwaterExecutive Director
Kathryn B. GoldmanSecretary
Craig EbertBoard of Director

About

Legal name
Greenhouse Gas Experts Network Inc
EIN
260554688
Address
9231 View Ave Nw, Seattle, WA, 98117-2656
State
Washington
Mission
To enable meaningful climate action by governments, corporations, and organizations by growing and supporting a global community of experts and institutions with the highest standards of professional practice in measuring, reporting, verifying, accounting for, and managing greenhouse gas emissions. (as filed on the Form 990)
Activity (NTEE)
B99 Education
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Education
Size band
6 (IRS master file code)
Formed
2007
Principal officer
Michael Gillenwater (as named on the Form 990)
IRS ruling date
1 July 2008
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsRalph Strebel
≥8years on the filingsCraig Ebert
≥8years on the filingsDarius Nassiry
≥8years on the filingsKAI UWE Barani Schmidt

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$3.9m
Total liabilities
$788k
Net assets or fund balances
$3.1m
Contributions and grants received
$354k
Program service revenue
$3.7m
Employees
10

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$3.5m$3.1m$439k

As filed on the IRS Form 990. US dollars.

State registration

2 entitiesiBusiness-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.
Greenhouse Gas Experts Network 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: Colorado Secretary of State (CDOS), business entities (data.colorado.gov 4ykn-tg5h). Licence: public domain. Data last fetched 18 October 2026.
State
Colorado
Entity type
nonprofit corporation
Status
Good Standing
Formed
23 January 2026
Registered agent
Ralph Joseph Strebel (city and state not held)

This register does not publish officers or directors.

Greenhouse Gas Experts Network 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: Oregon Secretary of State, active business entities (data.oregon.gov tckn-sxa6). Licence not stated. Data last fetched 18 October 2026.
State
Oregon
Entity type
nonprofit corporation
Status
Active
Formed
27 June 2025
Registered agent
Registered Agents Inc (city and state not held)