Civic Intelligence

German International School Boston Inc.

EIN 04-3486659 • 501(c)3 • Boston, MA

Pub. 78 Eligible

Profile

German international school boston is a bilingual independent school serving students from preschool to grade 12. We offer a bilingual education with an internationally acclaimed german curriculum. As a global community, we strive to instill a love of learning and a sense of responsibility to prepare students for shaping our common future.

57 Holton StreetBoston, MA 02134

www.gisbos.org

Siviq Scores

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

Liabilities / Assets

85th percentile

0.75x

Higher debt load relative to assets than 85% of similar nonprofits.

501(c)3 • $25M-$50M nonprofits • Source year 2025

Liabilities / Revenue

84th percentile

1.59x

Higher debt load relative to revenue than 84% of similar nonprofits.

501(c)3 • $25M-$50M nonprofits • Source year 2025

Net Margin

56th percentile

6.5%

Higher net margin than 56% of similar nonprofits.

501(c)3 • $25M-$50M nonprofits • Source year 2025

Top Officer Pay

25th percentile

$169,032

Higher top officer pay than 25% of similar nonprofits.

Top officer pay equals 1.2% of source-year revenue.

501(c)3 • $25M-$50M nonprofits • Source year 2025

Asset Growth

35th percentile

1.3%

Faster asset growth than 35% of similar nonprofits.

501(c)3 • $25M-$50M nonprofits • Annualized from 2024 to 2025

Revenue Growth

53rd percentile

8.7%

Faster revenue growth than 53% of similar nonprofits.

501(c)3 • $25M-$50M nonprofits • Annualized from 2024 to 2025

Assets

Up

$28,893,200

Up $383,615 (+1.3%) from 2024

Liabilities

Down

$21,729,317

Down $735,957 (-3.3%) from 2024

Net Assets

Up

$7,163,883

Up $1,119,572 (+19%) from 2024

Revenue

Up

$13,637,941

Up $1,085,965 (+8.7%) from 2024

Expenses

Down

$12,749,817

Down $258,113 (-2.0%) from 2024

Net Income

Up

$888,124

Up $1,344,078 (+295%) from 2024

Trend Graphs

Balance Sheet Trend

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

$30M$20M$10M$0Assets 2012: $5,743,913Liabilities 2012: $2,780,705Net Assets 2012: $2,963,2082012Assets 2013: $6,205,259Liabilities 2013: $2,745,185Net Assets 2013: $3,460,0742013Assets 2014: $6,649,329Liabilities 2014: $2,888,454Net Assets 2014: $3,760,8752014Assets 2015: $8,256,357Liabilities 2015: $4,200,493Net Assets 2015: $4,055,8642015Assets 2016: $9,303,865Liabilities 2016: $4,466,537Net Assets 2016: $4,837,3282016Assets 2017: $11,945,062Liabilities 2017: $6,771,360Net Assets 2017: $5,173,7022017Assets 2018: $11,887,180Liabilities 2018: $6,716,580Net Assets 2018: $5,170,6002018Assets 2019: $12,161,347Liabilities 2019: $6,610,387Net Assets 2019: $5,550,9602019Assets 2020: $12,930,007Liabilities 2020: $6,970,679Net Assets 2020: $5,959,3282020Assets 2021: $14,451,398Liabilities 2021: $8,519,753Net Assets 2021: $5,931,6452021Assets 2022: $14,706,954Liabilities 2022: $8,532,387Net Assets 2022: $6,174,5672022Assets 2023: $12,972,286Liabilities 2023: $6,475,636Net Assets 2023: $6,496,6502023Assets 2024: $28,509,585Liabilities 2024: $22,465,274Net Assets 2024: $6,044,3112024Assets 2025: $28,893,200Liabilities 2025: $21,729,317Net Assets 2025: $7,163,8832025

Highlighted filing

2025

Assets$28,893,200
Liabilities$21,729,317
Net Assets$7,163,883

Operations Trend

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

$15M$10M$5.0M$0-$5.0MRevenue 2012: $4,390,527Expenses 2012: $3,773,897Net Income 2012: $616,6302012Revenue 2013: $4,737,024Expenses 2013: $4,256,691Net Income 2013: $480,3332013Revenue 2014: $4,691,166Expenses 2014: $4,417,921Net Income 2014: $273,2452014Revenue 2015: $5,440,927Expenses 2015: $4,933,949Net Income 2015: $506,9782015Revenue 2016: $6,362,620Expenses 2016: $5,549,558Net Income 2016: $813,0622016Revenue 2017: $6,684,601Expenses 2017: $6,372,093Net Income 2017: $312,5082017Revenue 2018: $7,354,897Expenses 2018: $7,371,137Net Income 2018: -$16,2402018Revenue 2019: $7,974,281Expenses 2019: $7,569,479Net Income 2019: $404,8022019Revenue 2020: $8,900,796Expenses 2020: $8,487,256Net Income 2020: $413,5402020Revenue 2021: $8,777,063Expenses 2021: $8,649,902Net Income 2021: $127,1612021Revenue 2022: $10,594,981Expenses 2022: $10,186,153Net Income 2022: $408,8282022Revenue 2023: $11,219,492Expenses 2023: $10,905,802Net Income 2023: $313,6902023Revenue 2024: $12,551,976Expenses 2024: $13,007,930Net Income 2024: -$455,9542024Revenue 2025: $13,637,941Expenses 2025: $12,749,817Net Income 2025: $888,1242025

Highlighted filing

2025

Revenue$13,637,941
Expenses$12,749,817
Net Income$888,124

Filings

Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$28.9$21.7$7.16$13.6$12.7$0.89
2024Detailed filing. Detailed filing data is available for this year.$28.5$22.5$6.04$12.6$13.0$0.46
2023Detailed filing. Detailed filing data is available for this year.$13.0$6.48$6.50$11.2$10.9$0.31
2022Detailed filing. Detailed filing data is available for this year.$14.7$8.53$6.17$10.6$10.2$0.41
2021Detailed filing. Detailed filing data is available for this year.$14.5$8.52$5.93$8.78$8.65$0.13
2020Summary only. Only limited summary data is available for this year.$12.9$6.97$5.96$8.90$8.49$0.41
2019Summary only. Only limited summary data is available for this year.$12.2$6.61$5.55$7.97$7.57$0.40
2018Summary only. Only limited summary data is available for this year.$11.9$6.72$5.17$7.35$7.37$0.02
2017Detailed filing. Detailed filing data is available for this year.$11.9$6.77$5.17$6.68$6.37$0.31
2016Summary only. Only limited summary data is available for this year.$9.30$4.47$4.84$6.36$5.55$0.81
2015Summary only. Only limited summary data is available for this year.$8.26$4.20$4.06$5.44$4.93$0.51
2014Summary only. Only limited summary data is available for this year.$6.65$2.89$3.76$4.69$4.42$0.27
2013Summary only. Only limited summary data is available for this year.$6.21$2.75$3.46$4.74$4.26$0.48
2012Summary only. Only limited summary data is available for this year.$5.74$2.78$2.96$4.39$3.77$0.62
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2024 to Jun 30, 2025
Signed
Mar 10, 2026
Return Version
2024v5.1
Gross Receipts
$14,222,400
Mission and Program Overview

Mission

German international school boston is a bilingual independent school serving students from preschool to grade 12. We offer a bilingual education with an internationally acclaimed german curriculum. As a global community, we strive to instill a love of learning and a sense of responsibility to prepare students for shaping our common future.

Education from pre-school through grade 12 providing the language and culture of germany

Balance Sheet Detail
LineBeginningEndChange
Assets
Savings and Temporary Cash Investments$6,023,263$6,887,290▲ $864,027
Land, Buildings, and Equipment, Net$2,647,806$3,437,823▲ $790,017
Investments Other Securities$1,549,505$1,548,469▼ $1,036
Cash and Non-Interest-Bearing Accounts$773,018$331,718▼ $441,300
Prepaid Expenses and Deferred Charges$49,668$137,925▲ $88,257
Accounts Receivable$37,387$16,997▼ $20,390
Receivable From Disqualified Prsn$0$0→ $0
Receivables From Officers Etc$0$0→ $0
Investments Program Related$0--
Intangible Assets$0--
Loans From Officers Directors$0$0→ $0
Total Assets$28,509,585$28,893,200▲ $383,615
Other Assets Total$17,428,938$16,532,978▼ $895,960
Liabilities
Other Liabilities$18,138,407$17,700,830▼ $437,577
Deferred Revenue$3,278,988$2,945,662▼ $333,326
Accounts Payable and Accrued Expenses$568,411$772,086▲ $203,675
Mortgage Notes Payable Secured by Investment Property$479,468$310,739▼ $168,729
Unsecured Notes Loans Payable$0--
Escrow Account Liability$0--
Tax Exempt Bond Liabilities$0--
Total Liabilities$22,465,274$21,729,317▼ $735,957
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$6,025,204$7,146,021▲ $1,120,817
Net Assets With Donor Restrictions$19,107$17,862▼ $1,245
Total Net Assets Fund Balance$6,044,311$7,163,883▲ $1,119,572
Total Liabilities and Net Assets / Fund Balance$28,509,585$28,893,200▲ $383,615

Asset Categories

AssetBook ValueDepreciationBasis
Leasehold Improvements$1,832,462$5,383,961$7,216,423
Other Land Buildings$1,500,128$242,312$1,742,440
Equipment$105,233$614,175$719,408
Other Assets Org$57,750--
Other Securities$1,548,469--
Compensation and Service Providers

Employees

NameTitleFull / Part TimeBaseOtherTotal
Bettina Nancy HaarbuschHead of AdministrationFT$158,940$10,092$169,032
Paula SpencerDirector of FinanceFT$137,460$7,176$144,636
Anke RoostHead of Early EducationFT$119,469$16,852$136,321
Funda SuzanActing Head of SchoolFT$122,540$13,156$135,696

Board Members and Trustees

NameTitle
Tilman KisperskyChair/president
Ulrike BagehornVice Chair/president and Secretary
Alexandra GrossTrustee
Danielle KellermannTrustee
Gaurav GaihaTrustee (FROM 11/24)
Jan Tajo FittkauTrustee (FROM 11/24)
Elizabeth MellynTrustee (thru 11/24)
Roy GoldschmittTrustee (thru 11/24)
Roos KarssemeijerTreasurer (from 11/24)
Torin KoesterTreasurer (thru 11/24)

Highest Paid Contractors

ContractorServicesLocationCompensation
Behnisch ArchitektenDesign And Construction125 Kingston Street Floor 2, Boston, MA 02111$217,703
Timberline Construction CorpConstruction300 Pine Street, Canton, MA 02021$119,389
Revenue and Support

Revenue Composition

Contributions and Grants
$3,080,066
Program Service Revenue
$10,320,485
Investment Income
$237,390
Other Revenue
$0
All Other Contributions
$104,255
Change in Net Assets
$888,124

Audited Revenue Reconciliation

Revenue per Audited Statements
$13,637,941
Revenue Not Reported on Financial Statements
$0
Revenue Not Reported on Form 990
$-614,863
Other Revenue Adjustments
$0
Total Revenue per Audited Statements
$13,023,078
Total Revenue per Form 990
$13,637,941
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Salaries, Compensation, and Employee Benefits$8,088,168
Other Expenses$3,802,838
Grants and Similar Amounts Paid$846,311
Total Fundraising Expense$63,701
Professional Fundraising Fees$12,500

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$5,291,355$1,322,839-$6,614,194
Occupancy$1,776,575$97,647-$1,874,222
Grants to Domestic Individuals$846,311--$846,311
Depreciation Depletion$571,414$30,074-$601,488
Payroll Taxes$370,007$92,502-$462,509
Current Officers, Directors, Trustees, and Key Employees$366,554$91,639-$458,193
Other Employee Benefits$346,206$86,551-$432,757
Office Expenses$184,460$68,742$40,334$293,536
Pension Plan Contributions$96,412$24,103-$120,515
Insurance-$101,084-$101,084
Fees for Services Accounting-$70,252-$70,252
Fees for Services Legal-$67,156-$67,156
Information Technology$38,237$17,684$9,420$65,341
Advertising-$53,786-$53,786
Interest-$15,461-$15,461
Fees for Services Professional Fundraising--$12,500$12,500
Fees for Services Other$0$11,702$740$12,442
All Other Expenses$3,068$5,152$0$8,220
Fees for Service Investment Mgmnt Fees-$8,119-$8,119
Travel$2,870$1,327$707$4,904
Other Expenses$220,178$2,729-$2,729
Total Functional Expenses$10,505,465$2,180,651$63,701$12,749,817

Audited Expense Reconciliation

Line ItemAmount
Total Expenses per Form 990$12,749,817
Expenses per Audited Statements$11,903,506
Total Expenses per Audited Statements$11,903,506
Expenses Not Reported on Financial Statements$846,311
Other Expense Adjustments$846,311
Expenses Not Reported on Form 990$0
International Activity

International Summary

Offices
0
Employees
0
Spending
$167,142

International Compliance

Activity in boycott countries
No
Foreign corporation ownership
No
Foreign partnership interest
No
Interest in foreign trust
No
Passive foreign investment company interest
No
Transfers to foreign corporations
No

International Activities

RegionActivityServicesOfficesEmployeesSpending
Europe (Including Iceland and Greenland)Investments-00$167,142
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$12,500
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Loans from Officers, Directors, Trustees, and Key Employees$0$0→ $0
Receivables from Disqualified Persons$0$0→ $0
Receivables from Officers, Directors, Trustees, and Key Employees$0$0→ $0
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Federal Income Taxes$17,700,830
Lease Liabilities$0
Other Liabilities-
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Audit committee
Yes
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
Yes
Other officer compensation reviewed
Yes
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
Yes
Management duties delegated
No

Governance Explanations

Form 990, Part VI, Line 6 Classes of members or stockholders

All legal guardians whose children are enrolled at the german international school boston and provide school fees automatically become members of the corporation upon conclusion of the enrolment agreement, unless they expressly decide not to become members. In addition, other natural persons, including legal entites, who support the objectives of the organization, may become members of the organization.

Form 990, Part VI, Line 7A Members or stockholders electing members of governing body

The school's members (except those who are also teachers or employees of the school) elect the board of trustees. The board of trustees make decisions for the school.

Form 990, Part VI, Line 7B Decisions requiring approval by members or stockholders

The school's members have decision making powers as described in the by-laws.

Form 990, Part VI, Line 11B Review of form 990 by governing body

The form 990 is reviewed in depth by the director of finance and board treasurer, after which it is provided to the full board before filing.

Form 990, Part VI, Line 12C Conflict of interest policy

The conflict of interest policy at gisb is applicable to both its staff and board members, as outlined in the employee handbook. Furthermore, every year, all board members and senior leadership team members are required to sign a gisb conflict of interest disclosure statement. The board of trustees consistently conducts reviews and holds discussions pertaining to the conflict of interest policy. Additionally, there are supplementary policies, including the procurement policy and the vendor approval process, which fall under the purview of the head of administration and the director of finance, serving to bolster the implementation of the conflict of interest policy. To ensure transparency and accountability among its members, the board of trustees has established a process for reporting and addressing conflicts of interest.

Form 990, Part VI, Line 15A Process to establish compensation of top management official

Compensation increases for all employees, including officers and key employees, were discussed during board meetings. Previous year increases in compensation and current year evaluations were examined, and a reasonable increase in compensation for the current year was approved by the board members.

Form 990, Part VI, Line 15B Process to establish compensation of other employees

Compensation increases for all employees, including officers and key employees, were discussed during board meetings. Previous year increases in compensation and current year evaluations were examined, and a reasonable increase in compensation for the current year was approved by the board members

Form 990, Part VI, Line 19 Required documents available to the public

The organization's governing documents are made available to the public upon request. The bylaws are also available on the school's website.

Filing and Contact Details

Filer

Filer Name
German International School Boston Inc
EIN
04-3486659
Phone
6177832600
Address
57 Holton Street, Boston, MA 02134

Signing Officer

Name
Tilman Kispersky
Title
Chair/president
Phone
6177832600
Signed
2026-03-10
Discuss with paid preparer
Yes

Organization Details

Formed
1999
Legal Domicile
Ma
Voting Board Members
7
Independent Board Members
2
Employees
121
Volunteers
12

Preparer

Firm
Forvis Mazars LLP
Address
1330 Boylston Street, Chestnut Hill, MA 02467-2145
Preparer
Lauren Denton
Phone
6177311222
Supplemental Narrative

Additional Explanations

Form 990, Part XI, Line 9 Other changes in net assets or fund balances

FOREIGN CURRENCY EXCHANGE - 56675; Total - 56675;

Financial Statement Notes

Schedule D, Part XI, Line 2(D) Other revenues in audited financial statements not in form 990

Foreign Currency Transaction Gain - 56675 Financial Aid - -846311

Schedule D, Part XII, Line 4(B) Other expenses in form 990 not in audited financial statements

FINANCIAL AID - 846311

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