Nonpartisan civic infrastructure
AllCiv·Legis1
·

National Tuberous Sclerosis Association INC

Public charity
DBA: % THE ORGANIZATION
Other · SILVER SPRING, MD · EIN 95-3018799

About

To improve quality of life for everyone affected by tuberous sclerosis complex by catalyzing new treatments, driving research toward a CURE and expanding access to lifelong support.

In care of The Organization

Donations are tax-deductible
Category
Other
Employees
26
Volunteers
373

Financial Snapshot

FY ending 2024-12-31
Revenue
$10.0M
Expenses
$8.7M
Assets
$17.3M
Liabilities
$1.9M

Financial history

$10.0M$5.0M$0
161718192021222324
RevenueExpenses
Latest FY2024: $10.0M · Peak FY2023: $10.0M · Avg: $7.7M

Foreign activity (Schedule F)

Total spent abroad$137K
Foreign employees0
Foreign offices3
Foreign partnership interestNo
Foreign trust interestNo
RegionActivitySpent
EUROPE (INCLUDING ICELAND AND GREENLAND)
SOUTH ASIA

501(h) election

This 501(c)(3) elected the 501(h) safe-harbor — lobbying expenditures are capped under a clear dollar formula instead of the "insubstantial part" standard.

Political & Grant Activity

Campaign Spending
Lobbying
$240K
Grants Given
$862K
NATIONAL TUBEROUS SCLEROSIS ASSOCIATION INC
Your actions

Address

8737 Colesville RD
Silver Spring, MD, 20910-392

Governance

Voting board members27
Independent members27
Conflict-of-interest policyYes
Whistleblower policyYes
Doc-retention policyYes
Audit committeeYes
990 reviewed by boardYes

Compensation practices

Severance paymentsNo
Equity-based compNo
Supplemental retirement planNo
Compensation committeeYes
Used comp surveyYes
Board approved compYes
Initial contract exceptionNo

Financial detail (Schedule D)

Board-designated %84.9%
Permanent endowment %14.6%
Endowment held by related orgYes
Public records
ProPublica Nonprofit Explorer
Full 990 PDFs going back to 2001, plus parsed financial extracts. The easiest place to read actual filings.
IRS Tax Exempt Organization Search
IRS-side authoritative source. Confirms current exempt status and pulls the latest determination letter.
These open in a new tab. AllCiv doesn't host filings directly — these are the authoritative public-record sources.