Civic Intelligence

Women in Thoracic Surgery

EIN 30-0003353 • 501(c)3 • San Ramon, CA

Profile

The mission of women in thoracic surgery, inc. Is to provide networking, mentorship, sponsorship, educational, partnership, and scholarship opportunities, and promote a supportive community to optimize the advancement of women in cardiothoracic surgery.

2603 Camino Ramon 200San Ramon, CA 94583

wtsnet.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

58th percentile

0.04x

Higher debt load relative to assets than 58% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Source year 2024

Liabilities / Revenue

56th percentile

0.03x

Higher debt load relative to revenue than 56% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Source year 2024

Net Margin

62nd percentile

11%

Higher net margin than 62% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Source year 2024

Top Officer Pay

68th percentile

$0

Higher top officer pay than 68% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $500k-$1M nonprofits • Source year 2024

Asset Growth

74th percentile

17%

Faster asset growth than 74% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Annualized from 2022 to 2024

Revenue Growth

89th percentile

73%

Faster revenue growth than 89% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Annualized from 2022 to 2024

Balance Sheet
Liabilities / Assets58th percentile

Assets

Up

$450,747

Up $121,182 (+37%) from 2022

Liabilities

Up

$19,010

Up $4,993 (+36%) from 2022

Net Assets

Up

$431,737

Up $116,189 (+37%) from 2022

Operations
Liabilities / Revenue56th percentileNet Margin62nd percentile

Revenue

Up

$619,323

Up $411,692 (+198%) from 2022

Expenses

Up

$549,767

Up $428,605 (+354%) from 2022

Net Income

Down

$69,556

Down $16,913 (-20%) from 2022

Trend Graphs

Balance Sheet Trend

Asset Growth74th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$600K$400K$200K$0Assets 2020: $215,710Liabilities 2020: $8,359Net Assets 2020: $207,3512020Assets 2021: $216,953Liabilities 2021: $24,653Net Assets 2021: $192,3002021Assets 2022: $329,565Liabilities 2022: $14,017Net Assets 2022: $315,5482022Assets 2024: $450,747Liabilities 2024: $19,010Net Assets 2024: $431,7372024

Highlighted filing

2024

Assets$450,747
Liabilities$19,010
Net Assets$431,737
Open 2024 Filing

Operations Trend

Revenue Growth89th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$800K$600K$400K$200K$0-$200KRevenue 2020: $107,249Expenses 2020: $125,751Net Income 2020: -$18,5022020Revenue 2021: $137,205Expenses 2021: $152,256Net Income 2021: -$15,0512021Revenue 2022: $207,631Expenses 2022: $121,162Net Income 2022: $86,4692022Revenue 2024: $619,323Expenses 2024: $549,767Net Income 2024: $69,5562024

Highlighted filing

2024

Revenue$619,323
Expenses$549,767
Net Income$69,556
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.

Open filing
Assets
$450,747
Liabilities
$19,010
Net assets
$431,737
Revenue
$619,323
Expenses
$549,767
Net income
$69,556
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Facts available. Structured filing facts are available, but richer extracted sections are limited.$4.51$0.19$4.32$6.19$5.50$0.70
2022Facts available. Structured filing facts are available, but richer extracted sections are limited.$3.30$0.14$3.16$2.08$1.21$0.86
2021XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$2.17$0.25$1.92$1.37$1.52$0.15
2020XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$2.16$0.08$2.07$1.07$1.26$0.19
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Oct 30, 2025
Return Version
2024v5.2
Gross Receipts
$619,323
Mission and Program Overview

Mission

1. To enhance the quality of medical care given to patients of the members; 2. To focus on the development of women thoracic surgeons through a mentoring program; 3. To enhance the education of patients concerning heart and lung disease particularly but not exclusively among women; and 4. To enhance the education of women thoracic surgeons through seminars and other training mediums. 5. To create a supportive community to optimize the advancement of women in CT surgery.

The mission of women in thoracic surgery, inc. Is to create a supportive community to optimize the advancement of women in cardiothoracic surgery.

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$377,446$425,484▲ $48,038
Prepaid Expenses and Deferred Charges-$21,688-
Accounts Receivable$32,450$3,575▼ $28,875
Total Assets$409,896$450,747▲ $40,851
Liabilities
Accounts Payable and Accrued Expenses$13,661$19,010▲ $5,349
Deferred Revenue$7,905--
Total Liabilities$21,566$19,010▼ $2,556
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$388,330$389,787▲ $1,457
Net Assets With Donor Restrictions-$41,950-
Total Net Assets Fund Balance$388,330$431,737▲ $43,407
Total Liabilities and Net Assets / Fund Balance$409,896$450,747▲ $40,851
Compensation and Service Providers
Top Officer Pay68th percentile

Board Members and Trustees

NameTitle
Lauren KaneImmediate Past President
Daniela MolenaPresident
Mara AntonoffVice-president and Preside
Lana SchumacherDirector at Large
Leah BackhusDirector at Large
Lisa BrownDirector at Large
Mimi CeppaDirector at Large
Stephanie WorrellSecretary
Hannah CopelandTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$584,230
Program Service Revenue
$23,150
Investment Income
$11,943
Other Revenue
$0
All Other Contributions
$511,278
Change in Net Assets
$69,556

Audited Revenue Reconciliation

Revenue per Audited Statements
$619,323
Revenue Not Reported on Financial Statements
$0
Revenue Not Reported on Form 990
$0
Total Revenue per Audited Statements
$619,323
Total Revenue per Form 990
$619,323
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$549,767
Total Fundraising Expense$13,032
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Fees for Services Other$174,641$56,538-$231,179
Conferences and Meetings$137,357--$137,357
Fees for Services Management-$21,618$12,932$34,550
Travel$19,456$71-$19,527
Information Technology-$8,617-$8,617
Other Expenses$6,728--$6,728
Fees for Services Accounting-$1,892-$1,892
Advertising$1,430--$1,430
Insurance-$939-$939
Fees for Services Legal-$314-$314
Office Expenses-$186$100$286
Total Functional Expenses$446,560$90,175$13,032$549,767

Audited Expense Reconciliation

Line ItemAmount
Expenses per Audited Statements$549,767
Total Expenses per Audited Statements$549,767
Total Expenses per Form 990$549,767
Expenses Not Reported on Financial Statements$0
Expenses Not Reported on Form 990$0
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
No
Audit committee
No
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
Yes

Governance Explanations

Form 990, Part VI, Section A, line 3

“The organization has no employees and has engaged an outside association management company to perform management and financial services.”

Form 990, Part VI, Section A, line 6

“The organization has members, not stockholders.”

Form 990, Part VI, Section B, line 11B

“The draft form 990 is reviewed and approved by the president prior to filing.”

Form 990, Part VI, Section C, line 19

“The organization makes its governing documents, conflict of interest, and financial statements available to the public upon request.”

Filing and Contact Details

Filer

Filer Name
Women in Thoracic Surgery
EIN
30-0003353
Phone
9252756671
Address
2603 CAMINO RAMON 200, SAN RAMON, CA 94583

Signing Officer

Name
Mara Antonoff
Title
President
Phone
9252756671
Signed
2025-10-30
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Mara Antonoff
Formed
2001
Legal Domicile
De
Voting Board Members
9
Independent Board Members
9
Employees
0
Volunteers
78

Preparer

Firm
Cropper Accountancy Corporation
Address
2700 YGNACIO VALLEY ROAD SUITE 270, WALNUT CREEK, CA 94598
Preparer
Mary Ann Cropper
Phone
9259323860
Supplemental Narrative

Additional Explanations

Form 990, Part IX, line 11G

“MARKETING COMMITTEE MANAGEMENT FEES: Program service expenses 13,721. Management and general expenses 0. Fundraising expenses 0. Total expenses 13,721. BANK FEES: Program service expenses 0. Management and general expenses 9,797. Fundraising expenses 0. Total expenses 9,797. VIRTUAL BUSINESS OPERATING SERVICES: Program service expenses 0. Management and general expenses 36,720. Fundraising expenses 0. Total expenses 36,720. MEMBER MEETING PROJECT MANAGEMENT AND PLANNING: Program service expenses 116,170. Management and general expenses 0. Fundraising expenses 0. Total expenses 116,170. GRANT AND SPONSORSHIP MANAGEMENT FEE: Program service expenses 44,750. Management and general expenses 0. Fundraising expenses 0. Total expenses 44,750. OTHER CONTRACT SERVICES: Program service expenses 0. Management and general expenses 10,021. Fundraising expenses 0. Total expenses 10,021.”

Form 990, Part XI, Line 8

“Beginning net assets was reduced by $26,149 due to prior period adjustments to deferred revenue and receivables identified during the current year audit. The prior year financial statements had not been audited.”

Raw XML AppendixShowing 400 of 407 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt012
IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt024
IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt011979
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt023150
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt023150
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt011943
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt012
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt024
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt011979
IRS990ScheduleA/InvestmentIncomeCYPct00.00910
IRS990ScheduleA/InvestmentIncomePYPct00.00020
IRS990ScheduleA/PubliclySupportedOrg509a2Ind0X
IRS990ScheduleA/PublicSupportCY509Pct00.99090
IRS990ScheduleA/PublicSupportPY509Pct00.99980
IRS990ScheduleA/PublicSupportTotal509Amt01299106
IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt00
IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt00
IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind0X
IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt0607380
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt0296777
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt0207631
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt0137193
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt050125
IRS990ScheduleA/Total509Grp/TotalAmt01299106
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt0619323
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt0296777
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt0207631
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt0137205
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt050149
IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt01311085
IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorNum0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine20RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt0RESTRICTED
IRS990/ScheduleBRequiredInd01
IRS990ScheduleD/ExpensesNotReportedAmt00
IRS990ScheduleD/ExpensesNotRptFinclStmtAmt00
IRS990ScheduleD/ExpensesSubtotalAmt0549767
IRS990ScheduleD/RevenueNotReportedAmt00
IRS990ScheduleD/RevenueNotReportedFinclStmtAmt00
IRS990ScheduleD/RevenueSubtotalAmt0619323
IRS990ScheduleD/TotalBookValueLandBuildingsAmt00
IRS990ScheduleD/TotalExpensesPerForm990Amt0549767
IRS990ScheduleD/TotalRevenuePerForm990Amt0619323
IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt0619323
IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt0549767
IRS990/ScheduleJRequiredInd00
IRS990/ScheduleORequiredInd01
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0THE ORGANIZATION HAS NO EMPLOYEES AND HAS ENGAGED AN OUTSIDE ASSOCIATION MANAGEMENT COMPANY TO PERFORM MANAGEMENT AND FINANCIAL SERVICES.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1THE ORGANIZATION HAS MEMBERS, NOT STOCKHOLDERS.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2THE DRAFT FORM 990 IS REVIEWED AND APPROVED BY THE PRESIDENT PRIOR TO FILING.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt3THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt4MARKETING COMMITTEE MANAGEMENT FEES: Program service expenses 13,721. Management and general expenses 0. Fundraising expenses 0. Total expenses 13,721. BANK FEES: Program service expenses 0. Management and general expenses 9,797. Fundraising expenses 0. Total expenses 9,797. VIRTUAL BUSINESS OPERATING SERVICES: Program service expenses 0. Management and general expenses 36,720. Fundraising expenses 0. Total expenses 36,720. MEMBER MEETING PROJECT MANAGEMENT AND PLANNING: Program service expenses 116,170. Management and general expenses 0. Fundraising expenses 0. Total expenses 116,170. GRANT AND SPONSORSHIP MANAGEMENT FEE: Program service expenses 44,750. Management and general expenses 0. Fundraising expenses 0. Total expenses 44,750. OTHER CONTRACT SERVICES: Program service expenses 0. Management and general expenses 10,021. Fundraising expenses 0. Total expenses 10,021.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt5BEGINNING NET ASSETS WAS REDUCED BY $26,149 DUE TO PRIOR PERIOD ADJUSTMENTS TO DEFERRED REVENUE AND RECEIVABLES IDENTIFIED DURING THE CURRENT YEAR AUDIT. THE PRIOR YEAR FINANCIAL STATEMENTS HAD NOT BEEN AUDITED.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Form 990, Part VI, Section A, line 3
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990, Part VI, Section A, line 6
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Form 990, Part VI, Section B, line 11b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3Form 990, Part VI, Section C, line 19
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc4Form 990, Part IX, line 11g
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc5FORM 990, PART XI, LINE 8
IRS990/SchoolOperatingInd00
IRS990/SignificantChangeInd00
IRS990/SignificantNewProgramSrvcInd00
IRS990/StatesWhereCopyOfReturnIsFldCd0FL
IRS990/SubjectToExcsTaxNetInvstIncInd00
IRS990/SubjectToProxyTaxInd00
IRS990/SubjToTaxRmnrtnExPrchtPymtInd00
IRS990/TaxablePartyNotificationInd00
IRS990/TaxExemptBondsInd00
IRS990/TerminateOperationsInd00
IRS990/TotalAssetsBOYAmt0409896
IRS990/TotalAssetsEOYAmt0450747
IRS990/TotalAssetsGrp/BOYAmt0409896
IRS990/TotalAssetsGrp/EOYAmt0450747
IRS990/TotalCompGreaterThan150KInd00
IRS990/TotalContributionsAmt0584230
IRS990/TotalEmployeeCnt00
IRS990/TotalFunctionalExpensesGrp/FundraisingAmt013032
IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt090175
IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt0446560
IRS990/TotalFunctionalExpensesGrp/TotalAmt0549767
IRS990/TotalGrossUBIAmt00
IRS990/TotalLiabilitiesBOYAmt021566
IRS990/TotalLiabilitiesEOYAmt019010
IRS990/TotalLiabilitiesGrp/BOYAmt021566
IRS990/TotalLiabilitiesGrp/EOYAmt019010
IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt0388330
IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt0431737
IRS990/TotalOtherCompensationAmt00
IRS990/TotalProgramServiceExpensesAmt0446560
IRS990/TotalProgramServiceRevenueAmt023150
IRS990/TotalReportableCompFromOrgAmt00
IRS990/TotalRevenueGrp/ExclusionAmt00
IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt035093
IRS990/TotalRevenueGrp/TotalRevenueColumnAmt0619323
IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt00
IRS990/TotalVolunteersCnt078
IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt0409896
IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt0450747
IRS990/TotReportableCompRltdOrgAmt00
IRS990/TravelGrp/ManagementAndGeneralAmt071
IRS990/TravelGrp/ProgramServicesAmt019456
IRS990/TravelGrp/TotalAmt019527
IRS990/TrnsfrExmptNonChrtblRltdOrgInd00
IRS990/TypeOfOrganizationAssocInd0X
IRS990/UnrelatedBusIncmOverLimitInd00
IRS990/UponRequestInd0X
IRS990/USAddress/AddressLine1Txt02603 CAMINO RAMON 200
IRS990/USAddress/CityNm0SAN RAMON
IRS990/USAddress/StateAbbreviationCd0CA
IRS990/USAddress/ZIPCd094583
IRS990/VotingMembersGoverningBodyCnt09
IRS990/VotingMembersIndependentCnt09
IRS990/WebsiteAddressTxt0HTTP://WTSNET.ORG
IRS990/WhistleblowerPolicyInd00
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd01
ReturnHeader/BusinessOfficerGrp/PersonNm0MARA ANTONOFF
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0PRESIDENT
ReturnHeader/BusinessOfficerGrp/PhoneNum09252756671
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-10-30
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0WOMEN IN THORACIC SURGERY
ReturnHeader/Filer/BusinessNameControlTxt0WOME
ReturnHeader/Filer/EIN0300003353
ReturnHeader/Filer/PhoneNum09252756671
ReturnHeader/Filer/USAddress/AddressLine1Txt02603 CAMINO RAMON 200
ReturnHeader/Filer/USAddress/CityNm0SAN RAMON
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
ReturnHeader/Filer/USAddress/ZIPCd094583
ReturnHeader/IRSResponsiblePrtyInfoCurrInd00
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0680372583
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0CROPPER ACCOUNTANCY CORPORATION
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt02700 YGNACIO VALLEY ROAD SUITE 270
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0WALNUT CREEK
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0CA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd094598
ReturnHeader/PreparerPersonGrp/PhoneNum09259323860

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