1. Directory
  2. California
  3. Pasadena
  4. Thirty Meter Telescope International Observatory (TIO)
EIN 30-0833462

Thirty Meter Telescope International Observatory (TIO)

IRS 501(c) type
501(c)(3)
Num. employees
56
City
Pasadena
State
California
Year formed
2014
Most recent tax filings
2023-12-01
NTEE code, primary
U00: Science and Technology Research: General
Description
The Thirty Meter Telescope International Observatory (TIO) seeks to advance scientific knowledge while fostering connection among the partner countries and their citizens, who represent over half the world’s population.
Also known as...
TMT International Observatory LLC; Edward Stone MBR
Total revenues
$30,051,390
2023
Total expenses
$16,100,316
2023
Total assets
$231,193,423
2023
Num. employees
56
2023

Grants made by TIO

GranteeGrant descriptionAmount
Council for Native Hawaiian AdvancementKako'S Maui Fund for Communities Impacted By Fires on Maui - Funds Matched$50,000
Camp Agape HawaiiSponsor Camp Agape in Hawaii$25,000
Malama Aina FoundationCulture Based and Place Based Steam Programs$15,000
...and 1 more grant made

Who funds Thirty Meter Telescope International Observatory (TIO)

Grants from foundations and other nonprofits
GrantmakerDescriptionAmount
Mithun Family FoundationGeneral Fund$500

Personnel at TIO

NameTitleCompensation
Diana JergovicVice President for Strategy Implementation$0
Edward StoneDirector$150,194
Luc SimardGeneral Manager$0
Robert KirshnerExecutive Director$666,513
B Eswar ReddyProgramme Director
...and 4 more key personnel

Financials for TIO

RevenuesFYE 12/2023
Total grants, contributions, etc.$20,300,538
Program services$0
Investment income and dividends$1,532,089
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$0
Net income from fundraising events$0
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$8,218,763
Total revenues$30,051,390

Form 990s for TIO

Fiscal year endingDate received by IRSFormPDF link
2023-122024-11-13990View PDF
2022-122023-11-10990View PDF
2021-122022-11-10990View PDF
2020-122021-11-11990View PDF
2019-122021-04-02990View PDF
...and 5 more Form 990s
Data update history
September 11, 2024
Updated personnel
Identified 4 new personnel
September 11, 2024
Used new vendors
Identified 1 new vendor, including
January 3, 2024
Posted financials
Added Form 990 for fiscal year 2022
January 2, 2024
Updated personnel
Identified 3 new personnel
December 25, 2023
Used new vendors
Identified 1 new vendor, including
Nonprofit Types
Social advocacy organizationsResearch centersCharities
Issues
Science and technology
Characteristics
Conducts researchLobbyingOperates internationallyReceives government fundingTax deductible donationsAccepts online donations
General information
Address
100 W Walnut St Suite 300
Pasadena, CA 91124
Metro area
Los Angeles-Long Beach-Anaheim, CA
County
Los Angeles County, CA
Website URL
tmt.org/ 
Phone
(808) 227-2350
IRS details
EIN
30-0833462
Fiscal year end
December
Taxreturn type
Form 990
Year formed
2014
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
U00: Science and Technology Research: General
NAICS code, primary
813312: Environment, Conservation, and Wildlife Organizations
Parent/child status
Independent
California AB-488 details
AB 488 status
May Operate or Solicit for Charitable Purposes
Charity Registration status
Current - In Process
FTB status revoked
Not revoked
AG Registration Number
CT0230466
FTB Entity ID
None yet
AB 488 data last updated ("as-of") date
2024-12-31
Free account sign-up

Want updates when TIO has new information, or want to find more organizations like Thirty Meter Telescope International Observatory (TIO)?

Create free Cause IQ account
Cause IQ is a website that helps companies grow, maintain, and serve their nonprofit clients, and helps nonprofits find additional foundation funding. Our data and tools help professionals prospect for nonprofits, research opportunities, benchmark their clients, and enrich existing information.
Nonprofits
Product
Customers
About

© 2025 Nonprofit Metrics LLC
Terms of Service and Privacy Policy