Sip Forum LLC
Public records raise at least one point you should look into before giving.
What it says it does
The SIP Forum is organized for the purpose of promoting the spread and adoption of a telecommunications signaling protocol known as Session Initiation Protocol (SIP).
- Income
- $592,762
- Spending
- $475,031
- Employees
- 0
- Highest pay
- $240,000, mnging director
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. How we rate
Financial health
We do not score finances when yearly spending is very small or the return has too little detail. The ratios stop meaning much at that size.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. How we rate
Governance
This return does not answer enough of the governance questions to score.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. How we rate
Impact evidence
Describes programs. Its tax return describes what it does but we have found no measurable results in it.
Programs described in its return (3)
- $311,837 spent. Test Event Working Group (TEWG) - This is chartered to coordinate the holding of large-scale interoperability test events. These events, held multiple times per year at locations around the world, are open to any company, individual, or institution that wishes to attend and bring a product or service that incorporates SIP signaling to test with other products that incorporate SIP with the goal of increasing Inter-operability among vendors' products or services.
- $32,208 spent. Marketing Working Group - This is chartered to to increase awareness of SIP among selected communities. To do this, the working group performs tasks like creating white papers for distribution from a booth at selected industry conferences, maintaining a freely accessible website listing of SIP-based products and services, and coordinating the speaking opportunities for full member representatives at trade conferences.
- Technical Working Group - This is chartered to create documents that serve as best practice recomendations about how products use this Session Initiation Protocol (SIP) for application-specific purposes. These documents, while themselves not the official definition of SIP standard, describe which function is to use within SIP (and other relevant technologies) in order to supply application-specific features.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. How we rate
Legitimacy checks
Is it registered with the IRS? Passed.
Listed in the IRS master file of tax-exempt organizations as a 501(c)(6) business league.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Has the IRS revoked its tax-exempt status? Passed.
Not on the IRS automatic revocation list.
Source: Automatic revocation of exemption list, Internal Revenue Service, file dated October 13, 2026.
Are donations tax-deductible? Caution.
The IRS master file records contributions to this 501(c)(6) business league as not deductible.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Is it keeping up with its IRS filings? Passed.
Most recent return on file covers the year ending June 2026.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
How long has it been tax-exempt? Passed.
Recognized by the IRS since July 2006.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Is it in good standing with state regulators? Passed.
Not on California's list of charities barred from soliciting. Other states are not yet checked.
Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 21, 2026.
Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.