Is Interlisporg Inc a real 501(c)(3) nonprofit?

Yes. Interlisporg Inc (EIN: 87-2528093) is registered with the IRS as a 501(c)(3) tax-exempt organization based in Los Altos, CA. Their tax-exempt status is currently active.

Are donations to Interlisporg Inc tax-deductible?

As a 501(c)(3) organization, donations to Interlisporg Inc are generally tax-deductible for federal income tax purposes. Always consult a tax professional for your specific situation.

Nonprofit Profile

Interlisporg Inc

Los Altos, CA · 501(c)(3) · EIN 87-2528093

Active Science & Technology

Trust verification

IRS Status

Active since January 2023

Verify on IRS.gov →

State Registration

CA - Attorney General

Verify →

990 Filing

No data available

Financial overview

Tax-Exempt Since

2023

Ruling date: January 2023

About

Mission & Description

Interlisporg Inc, based in Los Altos, CA, is a nonprofit organization dedicated to the preservation and promotion of the Interlisp programming language and its associated technologies. The organization aims to support the community of users and developers involved with Interlisp, fostering collaboration and sharing of knowledge.

IRS filing details

Official Records

EIN	87-2528093
Subsection	501(c)(3)
Classification	Public Charity
NTEE Code	U41 - Science & Technology
Ruling Date	January 2023
Revocation History	None

Compensation

Officers & Directors

No officer compensation data available.

What brings you here?

🏛

You run this org

Send invoices, collect donations, and manage Interlisporg Inc — free. Unlimited invoices and quotes, payment links, and a claimable directory profile. Add fund accounting anytime for $25/mo.

See free invoicing

or claim your profile →

💛

You want to support them

Holdings lets nonprofits accept online donations — free to set up, no monthly fees. If Interlisporg Inc has a Holdings giving page, ask them for their link. Or let them know they can create one for free.

Learn about Holdings Giving

🔍

You're doing research

Verified IRS status, 990 filings, and officer compensation — all free. Holdings indexes every active 501(c)(3) in the US.

Browse CA nonprofits

Free nonprofit tools — no signup

Built by Holdings \u2014 the banking + accounting platform that keeps businesses and nonprofits audit-ready. Free forever, no account needed. Connect banking and let your books run themselves when you\u2019re ready.

Donation Receipt Generator

IRS-ready donor receipts in seconds — free, no signup.

501(c)(3) Formation Checklist

Every step to start your nonprofit, with cost + time estimates.

Grant Budget Builder

Build a funder-ready grant budget fast.

Statement of Activities

Generate your nonprofit income statement.

See all free tools \u2192

Ready to stop doing it by hand? Explore Fund accounting software for nonprofits, Nonprofit accounting software, or Online donation pages for nonprofits.