Nonprofit · EIN 75-1840827
SUMMER INSTITUTE OF LINGUISTICS INC
Also known as SIL INTERNATIONAL
Tax-exempt · DALLAS, TX 75236
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990 | $53,997,913 | $61,657,727 | -$7,659,814 | $103,654,764 | $17,961,357 | $85,693,407 |
| September 30, 2024 | 990 | $57,681,886 | $63,357,549 | -$5,675,663 | $118,045,931 | $30,099,011 | $87,946,920 |
| September 30, 2023 | 990 | $48,965,391 | $52,903,085 | -$3,937,694 | $126,634,253 | $40,081,384 | $86,552,869 |
Financial details: 990 for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $42,625,545
- Program service revenue
- $9,297,786
- Investment income
- $610,236
- Royalties
- $53,646
- Net rental income
- $1,029,037
- Net gain from sales of assets
- $420,103
- Net income from fundraising events
- -$8,640
- Net income from sales of inventory
- $630,594
- Other revenue
- $1,464,346
Expenses
- Grants and similar amounts paid
- $5,055,841
- Compensation of officers, directors and key employees
- $215,655
- Other salaries and wages
- $15,300,759
- Salaries, compensation and benefits (total)
- $18,396,174
- Professional fundraising fees
- $305,406
- Legal fees
- $78,274
- Accounting fees
- $203,503
- Occupancy
- $2,854,819
- Travel
- $6,818,095
- Depreciation
- $7,533,403
- Program services (functional)
- $45,034,175
- Management and general (functional)
- $15,200,566
- Fundraising (functional)
- $1,422,986
Balance sheet and other
- Total assets, start of year
- $118,045,931
- Total assets, end of year
- $103,654,764
- Total liabilities, end of year
- $17,961,357
- Net assets, end of year
- $85,693,407
- Land, buildings and equipment
- $40,933,660
- Net assets without donor restrictions
- $69,461,014
- Net assets with donor restrictions
- $16,232,393
- Gross unrelated business income
- $161,183
- Gross receipts
- $58,381,855
- Employees
- 202
- Volunteers
- 3,039
- Year formed
- 1982
- State of legal domicile
- TX
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended September 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Michel Kenmogne - Outgoing | Executive Dir. Officer | 40 | $157,865 | $23,902 |
| Jonathan Hudlow | Sr Data Scientist | 40 | $111,955 | $30,050 |
| Joshua Nemecek | Data Scientist | 40 | $120,536 | $20,285 |
| James Green | IT Project Mgr | 40 | $134,752 | $5,085 |
| Jeffrey Livingston | Systems Manager | 40 | $132,615 | $0 |
| Christine Liner | Assoc Exec Dir-Ops | 40 | $115,946 | $3,285 |
| Johnstone Ndunde - Incoming | Executive Dir. Officer | 40 | $97,723 | $17,567 |
| Mark Robinson - Outgoing | Director Trustee or director | 40 | $62,020 | $0 |
| George Shultz | Secretary Officer | 40 | $27,409 | $26,901 |
| Mike Painter - Incoming | Treasurer Officer | 40 | $51,415 | $5 |
| Jeff German - Incoming | Director Trustee or director | 40 | $35,460 | $15,841 |
| Sunny Hong - Outgoing | Director Trustee or director | 40 | $43,685 | $0 |
| Susan Nyaga - Incoming | Director Trustee or director | 40 | $41,329 | $0 |
| Donald Buhler - Outgoing | Treasurer Officer | 40 | $40,899 | $0 |
| Daniel Agee | Director Trustee or director | 40 | $40,604 | $24 |
19 more people on this return
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Liz Thomson - Outgoing | Director Trustee or director | 40 | $25,984 | $0 |
| Karen Floor - Incoming | Director Trustee or director | 40 | $16,591 | $0 |
| Angeline Foo - Incoming | Director Trustee or director | 40 | $10,309 | $0 |
| Eugene Burnham - Assistant | Secretary Officer | 36 | $6,841 | $12 |
| Andy Warren-Rothlin | Director Trustee or director | 1 | $0 | $0 |
| Jessica Sinclair | Director Trustee or director | 1 | $0 | $0 |
| Wei-Leong Goh | Director Trustee or director | 1 | $0 | $0 |
| Jane Jelgerhuis | Director Trustee or director | 1 | $0 | $0 |
| Peter Munguti | Director Trustee or director | 1 | $0 | $0 |
| Hans Combrink | Chairman Trustee or director | 1 | $0 | $0 |
| Eiji Matsumoto - Incoming | Director Trustee or director | 1 | $0 | $0 |
| Mauricio Castellon - Incoming | Director Trustee or director | 1 | $0 | $0 |
| Etienne Piek - Incoming | Director Trustee or director | 1 | $0 | $0 |
| Feruza Krason - Incoming | Director Trustee or director | 40 | $0 | $0 |
| Mary Pearce - Outgoing | Director Trustee or director | 40 | $0 | $0 |
| Saju George John - Outgoing | Director Trustee or director | 1 | $0 | $0 |
| Robert Carlos Laver - Outgoing | Director Trustee or director | 1 | $0 | $0 |
| Michael Welles - Outgoing | Director Trustee or director | 1 | $0 | $0 |
| Aboubakari Sama - Outgoing | Director Trustee or director | 1 | $0 | $0 |
990 for the year ended September 30, 2024: 25 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Michel Kenmogne | Executive Dir. Officer | 40 | $157,095 | $7,441 |
| Mary Pudaite | Gen Strategist | 40 | $119,098 | $29,550 |
| Jonathan Hirst | Chief Innov Ofcr | 40 | $115,905 | $29,221 |
| James Green | IT Project Mgr | 40 | $137,854 | $0 |
| Joshua Nemecek | Data Scientist | 40 | $107,727 | $24,422 |
| Jeffrey Livingston | Systems Manager | 40 | $125,000 | $0 |
| Mark Robinson | Director Trustee or director | 40 | $70,956 | $0 |
| George Shultz | Secretary Officer | 40 | $30,333 | $26,940 |
| Daniel Agee | Director Trustee or director | 40 | $38,833 | $10,110 |
| Don Buhler - CFO | Treasurer Officer | 40 | $40,899 | $0 |
| Sunny Hong | Director Trustee or director | 40 | $34,902 | $5,690 |
| Liz Thomson | Director Trustee or director | 40 | $30,696 | $0 |
| Eugene Burnham - Assistant | Secretary Officer | 36 | $7,551 | $0 |
| Andy Warren-Rothlin | Director Trustee or director | 1 | $0 | $0 |
| Jessica Sinclair | Director Trustee or director | 1 | $0 | $0 |
| Wei-Leong Goh | Director Trustee or director | 1 | $0 | $0 |
| Jane Jelgerhuis | Director Trustee or director | 1 | $0 | $0 |
| Peter Munguti | Director Trustee or director | 1 | $0 | $0 |
| Hans Combrink | Chairman Trustee or director | 1 | $0 | $0 |
| Mary Pearce | Director Trustee or director | 40 | $0 | $0 |
| Saju George John | Director Trustee or director | 1 | $0 | $0 |
| Robert Carlos Laver | Director Trustee or director | 1 | $0 | $0 |
| Michael Welles | Director Trustee or director | 1 | $0 | $0 |
| Aboubakari Sama | Director Trustee or director | 40 | $0 | $0 |
| Curt Henderson - Assistant | Treasurer Officer | 1 | $0 | $0 |
990 for the year ended September 30, 2023: 25 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Michel Kenmogne | Executive Dir. Officer | 40 | $147,955 | $7,324 |
| James Green | IT Project Manager | 40 | $131,168 | $0 |
| Jonathan Hirst | Chf Innov. Offcr | 40 | $106,892 | $0 |
| Donald Dillard | Software Test Mgr | 40 | $103,713 | $0 |
| Mark Robinson | Director Trustee or director | 40 | $74,326 | $17,123 |
| George Shultz | Secretary Officer | 40 | $58,420 | $0 |
| Eleanor Berry-Asst Treasurer | COO Officer | 40 | $47,385 | $5,841 |
| Daniel Agee | Director Trustee or director | 40 | $40,845 | $9,366 |
| Sunny Hong | Director Trustee or director | 40 | $29,941 | $8,967 |
| Donald P Buhler - CFO | Treasurer Officer | 40 | $36,921 | $0 |
| Liz Thomson Vice Chair | Director Trustee or director | 40 | $24,975 | $0 |
| Eugene C Burnham - Assistant | Secretary Officer | 36 | $8,072 | $0 |
| Mary Pearce | Director Trustee or director | 40 | $0 | $0 |
| Saju George John | Director Trustee or director | 1 | $0 | $0 |
| Roberto Carlos Laver | Director Trustee or director | 1 | $0 | $0 |
| Andy Warren-Rothlin | Director Trustee or director | 1 | $0 | $0 |
| Michael Welles | Director Trustee or director | 1 | $0 | $0 |
| Jessica Sinclair | Director Trustee or director | 1 | $0 | $0 |
| Wei-Leong Goh | Director Trustee or director | 1 | $0 | $0 |
| Jane Jelgerhuis | Director Trustee or director | 1 | $0 | $0 |
| Peter Munguti | Director Trustee or director | 1 | $0 | $0 |
| Hans Combrink | Chairman Trustee or director | 1 | $0 | $0 |
| Aboubakari Sama | Director Trustee or director | 40 | $0 | $0 |
| John Krehely outgoing-Asst | Treasurer Officer | 1 | $0 | $0 |
| Curt Henderson incoming-Asst | Treasurer Officer | 0 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 7500 W CAMP WISDOM RD, DALLAS, TX 75236-5629
- Principal officer (990 for 2024)
- Johnstone Ndunde
- Signed the 990
- Michael Painter, CFO
- Phone
- (972) 708-7400
- Website
- www.SIL.org
Mission
SIL advocates, builds capacity, and works with local communities to apply language expertise that advances meaningful development, education, and engagement with Scripture. Continue on Schedule O
Program accomplishments
- Language Engagements - SIL works with over 1,500 communities worldwide (impacting more than 950 million people) as they build their capacity for sustainable development with their own languages. Program engagements include language development that involves ongoing planned actions that a language community takes to ensure that its language continues to serve its needs and goals. SIL's expertise includes training and consulting in linguistic analysis, orthography and writing systems development, literature development (including translation) and mother tongue-based multilingual education and literacy. SIL publishes Ethnologue, an authoritative resource on world languages, referencing more than 7,000 languages. Continue on Schedule O.Expenses $17,218,425 · grants $3,831,157 · revenue $1,613,096
- Logistics - SIL works with non-dominant language communities who may reside in remote locations. It is often necessary for SIL to provide services to its staff that are unavailable in the local economy, such as housing, schools for dependent children, communications services, transportation, health care and access to food and supplies.Expenses $14,539,612 · grants $9,754 · revenue $7,595,137
- Language Services - SIL has three primary areas of language services: training in language development and multilingual education, and materials development and publications. 1) Training in language development and multilingual education: In addition to working with communities at the local level, SIL is an acknowledged leader in formal academic programs for the components of cross-cultural language-based service. SIL works in partnership with more than 20 institutions around the world to offer classroom and online training in applied linguistics and related subjects. SIL offers technical expertise and training to support the decisions of both local and diaspora communities about how to maintain their cultures and use their languages to address their changing needs. Continue on Schedule O.Expenses $13,276,138 · grants $1,214,930 · revenue $1,971,991
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 16, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 17, 2026 | 990 on file |
| 2023 | September 30, 2024 | February 18, 2025 | 990 on file |
IRS record
- EIN
- 75-1840827
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1983
- Accounting year ends
- September
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- International, foreign affairs and national security (Q200)
- Assets (IRS master file)
- $103,654,764
- Income (IRS master file)
- $58,381,855
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | September 2025 | $53,997,913 | $61,657,727 | $103,654,764 | XML |
| 990-T | September 2025 | – | – | – | IRS |
| 990 | September 2024 | $57,681,886 | $63,357,549 | $118,045,931 | XML |
| 990-T | September 2024 | – | – | – | IRS |
| 990 | September 2023 | $48,965,391 | $52,903,085 | $126,634,253 | XML |
| 990-T | September 2023 | – | – | – | IRS |
| 990 | September 2022 | $51,546,742 | $44,996,145 | $121,232,633 | IRS |
| 990-T | September 2022 | – | – | – | IRS |
| 990 | September 2021 | – | – | – | IRS |
| 990-T | September 2021 | – | – | – | IRS |
| 990 | September 2020 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 75-1840827).
Questions about SUMMER INSTITUTE OF LINGUISTICS INC
- What is the EIN of SUMMER INSTITUTE OF LINGUISTICS INC?
- The employer identification number (EIN) of SUMMER INSTITUTE OF LINGUISTICS INC is 75-1840827.
- Is SUMMER INSTITUTE OF LINGUISTICS INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1983.
- Are donations to SUMMER INSTITUTE OF LINGUISTICS INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SUMMER INSTITUTE OF LINGUISTICS INC file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of SUMMER INSTITUTE OF LINGUISTICS INC due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SUMMER INSTITUTE OF LINGUISTICS INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended September 2025.
- Who is the principal officer of SUMMER INSTITUTE OF LINGUISTICS INC?
- The 990 for the year ended September 30, 2025 names Johnstone Ndunde.
- Who are the officers and directors of SUMMER INSTITUTE OF LINGUISTICS INC?
- The 990 for the year ended September 30, 2025 lists 34 people; 19 received compensation from the organization, the highest $157,865 (Michel Kenmogne - Outgoing, Executive Dir.).
- How much revenue does SUMMER INSTITUTE OF LINGUISTICS INC have?
- On its 990 for the year ended September 30, 2025 it reported revenue of $53,997,913, expenses of $61,657,727 and total assets of $103,654,764 at year end.
Other nonprofits in DALLAS
- CENTER FOR SURVIVORS OF TORTURE EIN 75-2872010 · last filed 990 for 2024
- SEED EFFECT EIN 46-0639137 · last filed 990 for 2025
- WORLD AFFAIRS COUNCIL OF DALLAS FORT WORTH EIN 75-0855628 · last filed 990 for 2025
- MEDISEND COLLEGE OF BIOMEDICAL ENGINEERING TECHNOLOGY EIN 75-2332074 · last filed 990 for 2024
- KIDS IN NEED OF DEVELOPMENT EDUCATION AND RELIEF KINDER-USA EIN 75-2999028 · last filed 990 for 2025
- JUNIOR ACHIEVEMENT OF DALLAS INC EIN 75-0881589 · last filed 990 for 2025
- YOUTH WITH A MISSION COSTA RICA EIN 81-1177382 · last filed 990 for 2025
- INTERNATIONAL ESPERANZA PROJECT EIN 81-5106545 · last filed 990 for 2025
All nonprofits in DALLAS · Texas · International, foreign affairs and national security