Liabilities / Assets
49th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 27-0461270 • 501(c)6
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
49th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
51st percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
44th percentile
Higher net margin than 44% of similar nonprofits.
Top Officer Pay
77th percentile
Higher top officer pay than 77% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
36th percentile
Faster asset growth than 36% of similar nonprofits.
Revenue Growth
48th percentile
Faster revenue growth than 48% of similar nonprofits.
Assets
Down$14,310
Down $1,661 (-10%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Down$14,310
Down $1,661 (-10%) from 2024
Revenue
Down$90,939
Down $1,097 (-1.2%) from 2024
Expenses
Up$92,600
Up $3,405 (+3.8%) from 2024
Net Income
Down-$1,661
Down $4,502 (-158%) from 2024
Most recent year
2025 • Form 990XML pending. An XML filing is linked for this year, but detailed extraction is still pending.
To promote and advance the practice of structural engineering, to serve professional development interest, to promote communication and recognition, to maintain standards of and qualifications to practice in massachusetts, and to communicate goals of the association to structural engineers.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $6,447 | $11,008 | ▲ $4,561 |
| Cash and Non-Interest-Bearing Accounts | $9,524 | $3,302 | ▼ $6,222 |
| Total Assets | $15,971 | $14,310 | ▼ $1,661 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $15,971 | $14,310 | ▼ $1,661 |
| Total Net Assets Fund Balance | $15,971 | $14,310 | ▼ $1,661 |
| Total Liabilities and Net Assets / Fund Balance | $15,971 | $14,310 | ▼ $1,661 |
| Name | Title |
|---|---|
| Han Xu | President |
| Brian Twomey | Director |
| Dana Flood | Director |
| Eric Johnson | Director |
| Graham Carr | Director |
| Justin Kordas | Director |
| Kyle Karschner | Director |
| Robert Kane | Director |
| Ellen Swanson | Clerk |
| David Schnerch | Past Preside |
| David Ferdman | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $86,580 |
| Total Fundraising Expense | $78,528 |
| Grants and Similar Amounts Paid | $6,020 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Advertising | - | - | $42,074 | $42,074 |
| Grants to Domestic Individuals | $6,020 | - | - | $6,020 |
| Other Expenses | - | - | $4,662 | $4,662 |
| Fees for Services Accounting | - | $4,262 | - | $4,262 |
| All Other Expenses | $300 | $2,313 | - | $2,613 |
| Travel | $1,177 | - | $1,177 | $2,354 |
| Total Functional Expenses | $7,497 | $6,575 | $78,528 | $92,600 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“No review was or will be conducted.”
“No documents available to the public”
“To promote and advance the practice of structural engineering, to serve professional development interest, to promote communication and recognition, to maintain standards of and qualifications to practice in massachusetts, and to communicate goals of the association to structural engineers.”
“Seamass (structural engineers association of massachusetts) promoted and advanced the practice of structural engineering and served professional development interests through virtual and in-person webinars devoted to numerous topics of interest to practicing structural engineers in massachsetts and new england.”
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/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO PROMOTE AND ADVANCE THE PRACTICE OF STRUCTURAL ENGINEERING, TO SERVE PROFESSIONAL DEVELOPMENT INTEREST, TO PROMOTE COMMUNICATION AND RECOGNITION, TO MAINTAIN STANDARDS OF AND QUALIFICATIONS TO PRACTICE IN MASSACHUSETTS, AND TO COMMUNICATE GOALS OF THE ASSOCIATION TO STRUCTURAL ENGINEERS. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 42074 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 42074 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2313 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 300 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 2613 |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | DAVID FERDMAN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4085053807 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 81 LOKER ST |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | WAYLAND |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 01778 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 9524 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 3302 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 9100 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 6020 |
| IRS990/CYInvestmentIncomeAmt | 0 | 0 |
| IRS990/CYOtherExpensesAmt | 0 | 86580 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 81839 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -1661 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 92600 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 78528 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 90939 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | SEAMASS (STRUCTURAL ENGINEERS ASSOCIATION OF MASSACHUSETTS) PROMOTED AND ADVANCED THE PRACTICE OF STRUCTURAL ENGINEERING AND SERVED PROFESSIONAL DEVELOPMENT INTERESTS THROUGH VIRTUAL AND IN-PERSON WEBINARS DEVOTED TO NUMEROUS TOPICS OF INTEREST TO PRACTICING STRUCTURAL ENGINEERS IN MASSACHSETTS AND NEW ENGLAND. |
| IRS990/DescribedInSection501c3Ind | 0 | false |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 4262 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 4262 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | 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 | GRAHAM CARR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | DAVID FERDMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DANA FLOOD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ERIC JOHNSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | ROBERT KANE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | KYLE KARSCHNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | JUSTIN KORDAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | DAVID SCHNERCH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | BRIAN TWOMEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | ELLEN SWANSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | HAN XU |
| 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 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | PAST PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | CLERK |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | PRESIDENT |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/FormationYr | 0 | 2009 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 11 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 6020 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 6020 |
| IRS990/GrantsToIndividualsInd | 0 | true |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 90939 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 11 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 9100 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | TO PROMOTE AND ADVANCE THE PRACTICE OF STRUCTURAL ENGINEERING, TO SERVE PROFESSIONAL DEVELOPMENT INTEREST, TO PROMOTE COMMUNICATION AND RECOGNITION, TO MAINTAIN STANDARDS OF AND QUALIFICATIONS TO PRACTICE IN MASSACHUSETTS, AND TO COMMUNICATE GOALS OF THE ASSOCIATION TO STRUCTURAL ENGINEERS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 15971 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 14310 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 15971 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 14310 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | DUES/FEES/COUSES |
| IRS990/OtherExpensesGrp/Desc | 1 | REIMBURSED EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | EVENTS |
| IRS990/OtherExpensesGrp/Desc | 3 | MEALS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 12549 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 9918 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 8148 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 4662 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 12549 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 9918 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 8148 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 4662 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | DAVID FERDMAN |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 81839 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 81839 |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | SEAMASS (STRUCTURAL ENGINEERS ASSOCIATION OF MASSACHUSETTS) PROMOTED AND ADVANCED THE PRACTICE OF STRUCTURAL ENGINEERING AND SERVED PROFESSIONAL DEVELOPMENT INTERESTS THROUGH VIRTUAL AND IN-PERSON WEBINARS DEVOTED TO NUMEROUS TOPICS OF INTEREST TO PRACTICING STRUCTURAL ENGINEERS IN MASSACHSETTS AND NEW ENGLAND. |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 6930 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 5050 |
| IRS990/PYOtherExpensesAmt | 0 | 84145 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 85106 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 2841 |
| IRS990/PYTotalExpensesAmt | 0 | 89195 |
| IRS990/PYTotalRevenueAmt | 0 | 92036 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -1661 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 6447 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 11008 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | false |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 0 | 6020 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/GrantTypeTxt | 0 | SCHOLARSHIP |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/RecipientCnt | 0 | 3 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | false |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | TO PROMOTE AND ADVANCE THE PRACTICE OF STRUCTURAL ENGINEERING, TO SERVE PROFESSIONAL DEVELOPMENT INTEREST, TO PROMOTE COMMUNICATION AND RECOGNITION, TO MAINTAIN STANDARDS OF AND QUALIFICATIONS TO PRACTICE IN MASSACHUSETTS, AND TO COMMUNICATE GOALS OF THE ASSOCIATION TO STRUCTURAL ENGINEERS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | SEAMASS (STRUCTURAL ENGINEERS ASSOCIATION OF MASSACHUSETTS) PROMOTED AND ADVANCED THE PRACTICE OF STRUCTURAL ENGINEERING AND SERVED PROFESSIONAL DEVELOPMENT INTERESTS THROUGH VIRTUAL AND IN-PERSON WEBINARS DEVOTED TO NUMEROUS TOPICS OF INTEREST TO PRACTICING STRUCTURAL ENGINEERS IN MASSACHSETTS AND NEW ENGLAND. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | NO REVIEW WAS OR WILL BE CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | NO DOCUMENTS AVAILABLE TO THE PUBLIC |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990 - ORGANIZATION'S MISSION |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 2, PART III, LINE 4D |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 15971 |
| IRS990/TotalAssetsEOYAmt | 0 | 14310 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 15971 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 14310 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 9100 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 78528 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 6575 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 7497 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 92600 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 15971 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 14310 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 81839 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 81839 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 90939 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 15971 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 14310 |
| IRS990/TravelGrp/FundraisingAmt | 0 | 1177 |
| IRS990/TravelGrp/ProgramServicesAmt | 0 | 1177 |
| IRS990/TravelGrp/TotalAmt | 0 | 2354 |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/USAddress/AddressLine1Txt | 0 | 81 LOKER ST |
| IRS990/USAddress/CityNm | 0 | WAYLAND |
| IRS990/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/USAddress/ZIPCd | 0 | 01778 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 11 |
| IRS990/VotingMembersIndependentCnt | 0 | 11 |
| IRS990/WebsiteAddressTxt | 0 | HTTPS://WWW.SEAMASS.ORG/ |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | DAVID FERDMAN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 4085053807 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-10-10 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | STRUCTURAL ENGINEERS ASSOCATION OF |
| ReturnHeader/Filer/BusinessName/BusinessNameLine2Txt | 0 | MASSACHUSETTS INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | STRU |
| ReturnHeader/Filer/EIN | 0 | 270461270 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 1 WALNUT ST |
| ReturnHeader/Filer/USAddress/CityNm | 0 | BOSTON |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02108 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | false |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 043105938 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | ROBERT G RICE PC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 92 MONTVALE AVE STE 2700 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | STONEHAM |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 02180 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 7813962600 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-10-13 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | ROBERT G RICE PC |
| ReturnHeader/ReturnTs | 0 | 2025-10-15T08:46:31-04:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-06-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-05-31 |
| ReturnHeader/TaxYr | 0 | 2024 |
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