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Governance Register
US nonprofit · EIN 541733337 · Reston, VAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 541733337) - 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.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Energy Systems Integration Group Inc's network

13 people1 organisationi13 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (13). Violet dotted lines (1) 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

13 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 14 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Beth LaroseDirector2018
8 yrs
Bethany FrewDirector2020
6 yrs
Bjorn HedgesDirector2022
4 yrs
Cristin LyonsDirector2020
6 yrs
Jennifer CurranDirector2022
4 yrs
Joe LangCompany secretary2018
8 yrs
Lola InfanteDirector2022
4 yrs
Mark AhlstromPresident2018
8 yrs
Obadiah BartholomyVice-President2018
8 yrs
Rashid AbdulTreasurer2018
8 yrs
RIC O'ConnellDirector2018
8 yrs
Tracey KutneyDirector2020
6 yrs
William D'HaeseleerDirector2018
8 yrs
Under 5 years5 to 6 years6 years or moreShow all 13 →

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
Mark AhlstromPresident1$0
Obadiah BartholomyVice-President1$0
Bethany FrewSecretary1$0
Rashid AbdulTreasurer1$0
Cristin LyonsDirector1$0
Tracey KutneyDirector1$0
Jennifer CurranDirector1$0
Bjorn HedgesDirector1$0
Karen OnaranDirector1$0
William D'haeseleerDirector1$0
Rick O'connellDirector1$0
Aidan TuohyDirector1$0
Stephen MartzDirector1$0
Jeff BladenDirector1$0
Liz CookDirector1$0
Will KaulConsultant1$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Energy Systems Integration Group Inc
EIN
541733337
Address
Po Box 2787, Reston, VA, 20195-0787
State
Virginia
Mission
To accelerate the development and application of good engineering and operational practices supporting the appropriate integration of energy systems, including renewable energy and electric systems, fuel systems and heat systems. (as filed on the Form 990)
Activity (NTEE)
C35 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
1994
IRS ruling date
1 October 2006
Status
Code 01 (unconditional exemption)
Form 990 filings on record
5, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsBeth Larose
≥8years on the filingsJoe Lang
≥8years on the filingsMark Ahlstrom
≥8years on the filingsObadiah Bartholomy

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
$4.4m
Total liabilities
$1.2m
Net assets or fund balances
$3.2m
Contributions and grants received
$4.4m
Program service revenue
$948k
Grants and similar paid out
$29k
Employees
0
Volunteers
15