Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
990 • Fiscal year 2022 • EIN 46-1637111
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
Liabilities / Revenue
40th percentile
Higher debt load relative to revenue than 40% of similar nonprofits.
Net Margin
89th percentile
Higher net margin than 89% of similar nonprofits.
Top Officer Pay
14th percentile
Higher top officer pay than 14% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
81st percentile
Faster asset growth than 81% of similar nonprofits.
Revenue Growth
96th percentile
Faster revenue growth than 96% of similar nonprofits.
Assets
Up$10,836,605
Up $1,872,905 (+21%) from 2021
Net Assets
Up$10,355,316
Up $1,695,291 (+20%) from 2021
Liabilities
Up$481,289
Up $177,614 (+58%) from 2021
Revenue
Up$3,251,639
Up $2,127,303 (+189%) from 2021
Expenses
Up$1,559,009
Up $301,568 (+24%) from 2021
Net Income
Up$1,692,630
Up $1,825,735 (+1372%) from 2021
Mainframe provides 181 affordable workspaces to over 220 creatives and advances equity & opportunities in the arts. Mainframe hosts monthly open studio events for the public, provides weekly professional development sessions to artists, gives tours for youth and community groups, and rents venue space for community and private events.
Mainframe Studios is a financially self-sustaining nonprofit providing affordable workspaces to advance equity and opportunities in the arts. With 180 nonresidential studios, we believe Mainframe is the largest nonprofit art studio building in the nation.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Rtn Earn Endowment Incm Other Fnds | $8,660,024 | $10,355,316 | ▲ $1,695,292 |
| Land, Buildings, and Equipment, Net | $7,993,570 | $9,643,052 | ▲ $1,649,482 |
| Cash and Non-Interest-Bearing Accounts | $626,469 | $1,079,265 | ▲ $452,796 |
| Pledges and Grants Receivable | $339,527 | $109,050 | ▼ $230,477 |
| Prepaid Expenses and Deferred Charges | $4,134 | $2,754 | ▼ $1,380 |
| Accounts Receivable | - | $2,484 | - |
| Total Assets | $8,963,700 | $10,836,605 | ▲ $1,872,905 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $36,982 | $235,019 | ▲ $198,037 |
| Mortgage Notes Payable Secured by Investment Property | $155,967 | $160,092 | ▲ $4,125 |
| Other Liabilities | $47,886 | $67,576 | ▲ $19,690 |
| Deferred Revenue | $62,841 | $18,602 | ▼ $44,239 |
| Total Liabilities | $303,676 | $481,289 | ▲ $177,613 |
| Net Assets / Fund Balance | |||
| Total Net Assets Fund Balance | $8,660,024 | $10,355,316 | ▲ $1,695,292 |
| Total Liabilities and Net Assets / Fund Balance | $8,963,700 | $10,836,605 | ▲ $1,872,905 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $68,335 | - | - |
| Other Land Buildings | $68,814 | - | - |
| Land | $1,379,858 | - | - |
| Leasehold Improvements | $8,126,045 | $2,357,008 | - |
| Name | Title |
|---|---|
| Justin Mandelbaum | President |
| John McGowan | Vice President |
| Jeff Fleming | Member |
| Jo Kassel | Member |
| John Mandelbaum | Member |
| Lee Running | Member |
| Markaus Ashworth | Member |
| Sarah Young | Member |
| Steven Orr | Member |
| Gretchen Bohling | Secretary |
| Michael Trettin | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $1,413,834 |
| Salaries, Compensation, and Employee Benefits | $145,175 |
| Total Fundraising Expense | $9,481 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Depreciation Depletion | $716,461 | $0 | $0 | $716,461 |
| Occupancy | $486,261 | $21,979 | $0 | $508,240 |
| Other Salaries and Wages | $79,200 | $46,200 | $6,600 | $132,000 |
| All Other Expenses | $0 | $58,916 | $1,030 | $59,946 |
| Advertising | $37,190 | $0 | $0 | $37,190 |
| Fees for Services Management | $24,000 | $0 | $0 | $24,000 |
| Fees for Services Other | $6,527 | $12,704 | $0 | $19,231 |
| Information Technology | $11,771 | $2,943 | $0 | $14,714 |
| Fees for Services Accounting | $1,248 | $10,608 | $624 | $12,480 |
| Payroll Taxes | $5,944 | $3,467 | $495 | $9,906 |
| Conferences and Meetings | $3,304 | $2,788 | $0 | $6,092 |
| Insurance | $0 | $5,824 | $0 | $5,824 |
| Fees for Services Legal | $685 | $2,738 | $0 | $3,423 |
| Office Expenses | $1,772 | $1,614 | $0 | $3,386 |
| Pension Plan Contributions | $2,288 | $818 | $163 | $3,269 |
| Travel | $2,278 | $0 | $569 | $2,847 |
| Total Functional Expenses | $1,378,929 | $170,599 | $9,481 | $1,559,009 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Tenant security deposits | $67,576 |
“The 990 was prepared by an independent accounting firm. Mainframe's board president reviewed and provided comments to the preparer. All board members were provided with a copy of the 990 prior to filing and have had the opportunity to review and provide comments.”
“The executive director annually distributes a form and collects the form with signatures on which board members disclose any conflicts. If any questions arise, the officers review the questions with the affected board member.”
“Compensation for the executive director is voted on by the board in consultation with mainframes's third party human resources company and is designed to be competitive with comparable nonprofits in the region.”
“Documents were made available to the public upon request.”
“Justin mandelbaum is the president of mainframe studios. His father, john mandelbaum, is a member of the board. Both are unpaid volunteers and have committed to never receive compensation or profit from mainframe studios.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 36982 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 235019 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 2484 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | Mainframe Studios is a financially self-sustaining nonprofit providing affordable workspaces to advance equity and opportunities in the arts. With 180 nonresidential studios, we believe Mainframe is the largest nonprofit art studio building in the nation. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 0 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 37190 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 37190 |
| IRS990/AllOtherContributionsAmt | 0 | 2112967 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 1030 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 58916 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 59946 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | Community Foundation of Greater Des Moines |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5158832626 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1915 Grand Ave |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Des Moines |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 50309 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 626469 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 1079265 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 2788 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 3304 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 6092 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CostOfGoodsSoldAmt | 0 | 1110 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2327967 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 1072 |
| IRS990/CYOtherExpensesAmt | 0 | 1413834 |
| IRS990/CYOtherRevenueAmt | 0 | 657 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 921943 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1692630 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 145175 |
| IRS990/CYTotalExpensesAmt | 0 | 1559009 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 9481 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 3251639 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 62841 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 18602 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 716461 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 716461 |
| IRS990/Desc | 0 | Mainframe completed the final phase of its building renovations, increasing its nonresidential workspaces to 180 total studios. These studios are offered to individual artists and arts-related nonprofits. We operated at nearly 100% occupancy and our waitlist consistently hovered around 100 applicants. Income from our affordable rents generate enough revenue to cover operating costs. Our 4650 square foot event space provides a place for weddings, conferences, workshops, corporate parties and fundraisers to occur for a rental fee. Mainframe services as a becon, demonstrating that investing in the creative economy works, even in times of crisis. (Note the expenses listed in 4a above include $716,461 of depreciation.) |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 3 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExcsTaxSect4951Or4952Or4953Ind | 0 | false |
| IRS990/ExpenseAmt | 0 | 1341739 |
| IRS990/FamilyOrBusinessRlnInd | 0 | true |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 624 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 10608 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 1248 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 12480 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 2738 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 685 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 3423 |
| IRS990/FeesForServicesManagementGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/ProgramServicesAmt | 0 | 24000 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 24000 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 12704 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 6527 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 19231 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Justin Mandelbaum |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | John McGowan |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Michael Trettin |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Gretchen Bohling |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Markaus Ashworth |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Sarah Young |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Jeff Fleming |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Jo Kassel |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | John Mandelbaum |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Steven Orr |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Lee Running |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Vice President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Member |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 2012 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 11 |
| IRS990/GovernmentGrantsAmt | 0 | 215000 |
| IRS990/GrantAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 3252749 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 1558 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 209 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 11 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 0 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 2943 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 11771 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 14714 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 0 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 5824 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 5824 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1072 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 1072 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 15 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 2357008 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 7993570 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 9643052 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 12000060 |
| IRS990/LegalDomicileStateCd | 0 | IA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | Mainframe Studios is a financially self-sustaining nonprofit providing affordable workspaces to advance equity and opportunities in the arts. With 180 nonresidential studios, we believe Mainframe is the largest nonprofit art studio building in the nation. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 155967 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 160092 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 8660024 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 10355316 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | -901 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | -901 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 1558 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 1558 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 21979 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 486261 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 508240 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 1614 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 1772 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 3386 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 47886 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 67576 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 6600 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 46200 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 79200 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 132000 |
| IRS990/PartialLiquidationInd | 0 | false |
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| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 3467 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 5944 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 9906 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 163 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 818 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 2288 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 3269 |
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| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 109050 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 4134 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 2754 |
| IRS990/PrincipalOfficerNm | 0 | JUSTIN MANDELBAUM |
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| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 531120 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 531120 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Studio Rental |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Event Space Rental |
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| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 1 | 0 |
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| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 35153 |
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| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 1 | 0 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | Mainframe Studios normally spends over 90% of its marketing budget on programming monthly First Friday open studio events that attract hundreds of visitors. The festive, free events feature a unique theme, creating a new experience for visitors each month. Themes include exhibitions, activities and special guests relating to various art forms such as ceramics, textiles and even gaming. First Fridays also feature local musicians and affordable dinner options by resident caterers Tangerine Food Co. Tenant-artists open their studios to connect with new customers and partners that help further their careers. Mainframe also self-publishes a quarterly studio directory that includes stories about our artists and partners. |
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| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1778 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1966 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 9521 |
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| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 701475 |
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| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 439225 |
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| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 1594 |
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| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
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| IRS990/ScheduleBRequiredInd | 0 | true |
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| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 1379858 |
| IRS990ScheduleD/LandGrp/InvestmentCostOrOtherBasisAmt | 0 | 1379858 |
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| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 2357008 |
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| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 67576 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | Tenant security deposits |
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| IRS990ScheduleD/TotalLiabilityAmt | 0 | 67576 |
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| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | THE 990 WAS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM. MAINFRAME'S BOARD PRESIDENT REVIEWED AND PROVIDED COMMENTS TO THE PREPARER. ALL BOARD MEMBERS WERE PROVIDED WITH A COPY OF THE 990 PRIOR TO FILING AND HAVE HAD THE OPPORTUNITY TO REVIEW AND PROVIDE COMMENTS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE EXECUTIVE DIRECTOR ANNUALLY DISTRIBUTES A FORM AND COLLECTS THE FORM WITH SIGNATURES ON WHICH BOARD MEMBERS DISCLOSE ANY CONFLICTS. IF ANY QUESTIONS ARISE, THE OFFICERS REVIEW THE QUESTIONS WITH THE AFFECTED BOARD MEMBER. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | COMPENSATION FOR THE EXECUTIVE DIRECTOR IS VOTED ON BY THE BOARD IN CONSULTATION WITH MAINFRAMES'S THIRD PARTY HUMAN RESOURCES COMPANY AND IS DESIGNED TO BE COMPETITIVE WITH COMPARABLE NONPROFITS IN THE REGION. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | DOCUMENTS WERE MADE AVAILABLE TO THE PUBLIC UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | JUSTIN MANDELBAUM IS THE PRESIDENT OF MAINFRAME STUDIOS. HIS FATHER, JOHN MANDELBAUM, IS A MEMBER OF THE BOARD. BOTH ARE UNPAID VOLUNTEERS AND HAVE COMMITTED TO NEVER RECEIVE COMPENSATION OR PROFIT FROM MAINFRAME STUDIOS. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Pt VI, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Pt VI, Line 12c |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Pt VI, Line 15a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Pt VI, Line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Pt VI, Line 2 |
| IRS990/SchoolOperatingInd | 0 | false |
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Displayed year
2022 • Form 990Detailed filing. Detailed filing data is available for this year.