Virginia · Nonprofit
ENERGY SYSTEMS INTEGRATION GROUP INC
ENERGY SYSTEMS INTEGRATION GROUP INC (Virginia) receives grants from 7 organizations whose IRS filings report $7,252,782 to it, the largest being SEQUOIA CLIMATE FOUNDATION ($4,620,000). 3 of them have funded it in more than one year.
- Revenue FY2025
- $6.4M
- Funders on record
- 7
- Grants received
- $7.3M
- Net assets
- $8.9M
What Energy Systems Integration Group Inc does
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 stated on its FY2025 Form 990.
Programs
Memberships services - to promote and enhance the activities of the member firms in performing their mission. The organization provides public meetings, education seminars and other information forums.
$5,195,090 spent$6,441,697 earned by the program99% of program spendingResearch - to undertake special individual research profects of interest to members.
$0 spent0% of program spendingEducation - to provide scholarships and waiver of fees to professional meetings for students.
$36,200 spent1% of program spending
The 3 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $5,231,290.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $4.4M to $10M (+133%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
82% of ENERGY SYSTEMS INTEGRATION GROUP INC’s revenue is contributions — about as donation-reliant as the typical peer (88% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2019 → 2023: the base broadened from 1 funder to 2 funders, grant income rose $75k → $1.0M.
From the IRS filings of ENERGY SYSTEMS INTEGRATION GROUP INC’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
ENERGY SYSTEMS INTEGRATION GROUP INC leans on a few funders — its largest provides 64% of grant income and the top three 89%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2019 100% · 2020 93% · 2021 79% · 2022 85% · 2023 80% — diversifying over time.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
ENERGY SYSTEMS INTEGRATION GROUP INC draws 100% of its grant income from funders outside Virginia, across 3 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
ENERGY SYSTEMS INTEGRATION GROUP INC holds deeper cash reserves than three-quarters of the 1,209 environment nonprofits its size.
this organization peer median middle 50% of peers· 1,209 environment nonprofits $1M–$10M, FY2025
Organizations like ENERGY SYSTEMS INTEGRATION GROUP INC
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Virginia
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
86% of spending goes to programs.
Governance
Public support
53%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for ENERGY SYSTEMS INTEGRATION GROUP INC: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds ENERGY SYSTEMS INTEGRATION GROUP INC?
- ENERGY SYSTEMS INTEGRATION GROUP INC (Virginia) receives grants from 7 organizations whose IRS filings report $7,252,782 to it, the largest being SEQUOIA CLIMATE FOUNDATION ($4,620,000). 3 of them have funded it in more than one year.
- How many funders does ENERGY SYSTEMS INTEGRATION GROUP INC have?
- IRS filings report 7 organizations giving $7,252,782 in grants to ENERGY SYSTEMS INTEGRATION GROUP INC, 3 of which have funded it in more than one year.
- Who is the largest funder of ENERGY SYSTEMS INTEGRATION GROUP INC?
- SEQUOIA CLIMATE FOUNDATION is the largest funder on record, with $4,620,000 in grants. The full list of funders is on this page.
- How can an organization like ENERGY SYSTEMS INTEGRATION GROUP INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Virginia. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Energy Systems Integration Group →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 7 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing