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Mainframe

Not tax-deductible

Portland, ME501(c)(4)Since 2025Civil Rights & Advocacy EIN 39-2215232Revenue $1.1M in FY2025Latest return filed May 18, 2026

On file with the IRSPortland, METax-exempt since Sep 2025

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To promote nonpartisan civic engagement and education in maine by creating and distributing digital content that informs, connects, and engages residents on public issues.

Form 990 Part I, line 1, FY2025. The organization’s own words, as filed with the IRS. Find it at the IRS (EIN 39-2215232) · Dispute this line
501(c)(4) social-welfare organization; gifts are not tax-deductible as charitable contributions.
100¢ of each $1 spent went to programs.
Mission: Form 990 Part I, line 1 · Status: IRS Pub. 78 · Programs: Part IX

Before you give

FY2025 · Form 990Independent: from IRS data, not the org
Download 990
IRS status
501(c)(4)
not on the IRS revocation list
Listed by the IRS and not on the revocation list.
IRS BMF · Auto-Revocation List
Tax-deductible gifts
No
Donations are not tax-deductible
The IRS does not list gifts to it as deductible.
IRS Pub. 78 · IRS BMF
Latest return
FY2025
latest Form 990
The latest return is for FY2025, 1 tax year back.
IRS e-file · Filing history
Spent on programs
100%
of spending
100% of spending went to programs.
Pt IX · Ln 25 · col B
Cash reserves
6.1 mo
of spending, in cash
6.1 months of spending in cash.
Pt X · Ln 1–2 · Pt I · Ln 18
Named funders
1
named funder · $100K
1 funder names it on their filings.
Funders’ Sch. I, 990-PF
Liabilities
$0
0% of total assets
Liabilities are 0% of assets.
Pt X · Ln 26
Independent board members
4
of 4 voting members
4 of 4 voting members are independent.
Pt VI · Ln 1a–1b
In line with peersDifferent from peersFar from peersNo peer rangeNo data yetTap a box for the reason.
Revenue
$1.1M
Spent
$753K
To programs
100%
Net assets
$384K

From the FY2025 Form 990 · see the original

990 PDF Support Claim

Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Sep 2025.

IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File

Where the money goes

100 cents of each dollar spent went to programs.

Program services 100% · $753K

Form 990 Part IX, line 25. Every line is in By the numbers.

Something off? Claim to add context

Who runs it and what they're paid

4 people listed on the 990.

Part VII, Section A · reportable compensation
John Coleman
Board Member
$0Pt VII · Sec A
Nils Tcheyan
Treasurer
$0Pt VII · Sec A
$0Pt VII · Sec A
Ann Beaudry
Board Chair
$0Pt VII · Sec A
See Mainframe executive salaries →

Questions the 990 asks

The form asks each of these directly. These are the filed answers.

  • Family or business ties among officersPt VI · Ln 2No
  • Top official's pay set by an independent reviewPt VI · Ln 15aNo

Programs and updates

Mainframe is a membership association based in Portland, ME, formed in 2025.

Questions for Mainframe

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1 program · $753K · in their own filed words · FY2025
01

To promote nonpartisan civic engagement and education in maine by creating and distributing digital content that informs, connects, and engages residents on public issues.

Form 990 Part III, line 4, FY2025. The organization’s own words, as filed with the IRS. Find it at the IRS (EIN 39-2215232) · Dispute this line
$753Kprogram expense

Funders

Who pays for it.

From grant filings on record. Receipts are incomplete: individual donors are never listed.

Grants

Schedule I · funders on record
Grants received · FY2021
Thomas and Linda Koehn FoundationFY2021$100K
Total grants receivedfrom 1 funder$100K

By the numbers

The FY2025 990, line by line.

Download 990
from philanthropy.org
1The main four
Money inPt VIII
$1.1M
Ln 12
Gifts and grantsLn 1h$1.1M
Money outPt IX
$753K
Ln 25
Programscol B$753K
Owns and owesPt X
$384K
net assets · Ln 32
Cash and savingsLn 1–2$384K
Total assetsLn 16$384K
LiabilitiesLn 26$0
PeoplePt VI, VII
4
listed · VII A
PaidVII A0
Voting boardVI 1a4
IndependentVI 1b4
2In more detail
Revenue in detailPt VIII
Gifts and grantsLn 1h$1.1M
Total revenueLn 12$1.1M
Assets in detailPt X, end of year
CashLn 1$384K
Cash and savings togetherLn 1–2$384K
Total assetsLn 16$384K
LiabilitiesLn 26$0
Net assetsLn 32$384K
OperationsPt I, VI
EmployeesI 50
Fiscal year endsHeaderDecember
Conflict-of-interest policyVI 12aYes
Whistleblower policyVI 13No
Records policyVI 14No
3Year over year
Balance sheet, start vs end of yearPt X · col A, B
LineStart FY25End FY25
Cash and savingsLn 1–2$384K
Total assetsLn 16$0$384K
LiabilitiesLn 26$0$0
Net assetsLn 32$0$384K
4Every line
Statement of functional expensesPt IX · every line
LineTotalProgramsManagementFundraising
Legal feesLn 11b$12K$12K
Other fees for servicesLn 11g$740K$740K
Office expensesLn 13$312$312
InsuranceLn 23$1K$1K
Total functional expensesLn 25$753K$753K$0$0

Filing history

YearMoney inMoney outIn minus outNet assetsDownload
FY2025 Latest ViewingFiled with the IRS May 18, 2026 $1.1M$753K$384K$384K 990 PDF

Schedules filed Part IV

O · Explanations
See the full FY2025 990
Part I · Summary $1,137,000 revenue, 12 lines filed
I-8 Contributions and grants$1,137,000
I-9 Program service revenue$0
I-10 Investment income$0
I-11 Other revenue$0
I-12 Total revenue$1,137,000
I-13 Grants and similar amounts paid$0
I-14 Benefits paid to members$0
I-15 Salaries and benefits$0
I-16a Professional fundraising fees$0
I-17 Other expenses$753,450
I-18 Total expenses$753,450
I-19 Revenue less expenses$383,550
Part VI · Governance 4 of 4 board members independent, 3 to look at
VI-1a Voting members of the governing body4
VI-1b Independent voting members4
VI-13 Written whistleblower policyNo
VI-14 Document retention and destruction policyNo
VI-15a Process for setting top official's payNo
VI-2 Family or business relationship among officers or directorsNo
VI-12a Written conflict of interest policyYes
Part VIII · Statement of revenue $1,137,000 across 4 lines filed
VIII-1f All other contributions, gifts and grants$1,137,000
VIII-1h Total contributions, gifts and grants$1,137,000
VIII-8 Net income from fundraising events$0
VIII-12 Total revenueRelated to mission $0 · Unrelated business $0 · Excluded from tax $0$1,137,000
Part IX · Statement of functional expenses $753,450 across 4 lines filed
IX-11b Legal feesPrograms $11,501$11,501
IX-11g Other fees for servicesPrograms $740,303$740,303
IX-13 Office expensesPrograms $312$312
IX-23 InsurancePrograms $1,334$1,334
IX-25 Total functional expensesPrograms $753,450 · Management $0 · Fundraising $0$753,450
Part X · Balance sheet $383,550 assets, 6 lines filed
X-1 Cash, non-interest-bearing$383,550
X-16 Total assetsStart of year $0$383,550
X-26 Total liabilitiesStart of year $0$0
X-27 Net assets without donor restrictions$383,550
X-32 Total net assets or fund balancesStart of year $0$383,550
X-33 Total liabilities and net assetsStart of year $0$383,550
Part XI · Reconciliation of net assets $383,550 net assets at year end
XI-1 Total revenue$1,137,000
XI-2 Total expenses$753,450
XI-3 Revenue less expenses$383,550
XI-9 Other changes in net assets$0
XI-10 Net assets at end of year$383,550

Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File

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