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US nonprofit · EIN 050589694 · Benicia, CAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 050589694) - 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 time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Principal officer IRS Form 990-N (e-Postcard) - principal officer named for tax year 2013.Exemption status IRS Automatic Revocation of Exemption List (posted to 13 October 2026).Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Sustainable Solano

Donations deductible
Revenue
$1.2m
year to 31 December 2024
Expenses
$1.2m
year to 31 December 2024
Total assets
$618k
$995 liabilities
Net assets
$617k
assets less liabilities
Directors and trustees
6
6.4 years on average
Staff
11
50 volunteers
Left since last filing
0
no seats appear to have opened
Officers and senior staff
2
named in Part VII
Exemption reinstated on 15 September 2012. The IRS had automatically revoked it on 15 May 2011 (after three years without a return). Source: IRS Automatic Revocation of Exemption List, posted to 13 October 2026.
How am I connected?

Sustainable Solano's network

6 people2 organisationsi6 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (6). Violet dotted lines (2) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

6 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 in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 6 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Elena KaroulinaExecutive Director and Dir2018
8 yrs
John UselmanFormer Treasurer (Resigned in May 2023)2021
5 yrs
Maggie KolkPresident2018
8 yrs
Marilyn BardetDirector2019
7 yrs
Princess WashingtonDirector2023
3 yrs
Verneal BrumfieldCompany secretary2021
5 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

2 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Marilyn BardetChair2018
Marlen OttenCompany secretary2018

Pay and hours

year to 31 December 2024iFrom 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
Elena KaroulinaCo-Executive Director and Dir40$102k
Marilyn BardetDirector1$0
Verneal BrumfieldSecretary1$0
Karina CookTreasurer2$0
Maggie KolkPresident3$0
Princess WashingtonDirector1$0
Bonnie HamiltonDirector1$0
Ron KaneDirector1$0

About

Legal name
Sustainable Solano
EIN
050589694
Address
Po Box 1215, Benicia, CA, 94510-4215
State
California
Mission
To inspire and nurture grassroots initiatives for the good of the whole and to promote ecologically sustainable, economically and socially just future of solano county (as filed on the Form 990)
Activity (NTEE)
C40 Environment
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Environment
Size band
5 (IRS master file code)
Formed
2003
Principal officer
Maggie Kolk (as named on the Form 990)
IRS ruling date
1 April 2013
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsElena Karoulina
≥8years on the filingsMaggie Kolk
≥7years on the filingsMarilyn Bardet
≥5years on the filingsJohn Uselman

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$618k
Total liabilities
$995
Net assets or fund balances
$617k
Contributions and grants received
$383k
Program service revenue
$852k
Employees
11
Volunteers
50