# Source: https://businessownerindex.com/company-reference/sirius-xm-rad-q3277465/

U.S. founder reference library

# Sirius XM Rad

American broadcasting company headquartered in Midtown Manhattan, New York City

## Company context

The public record describes Sirius XM Rad as American broadcasting company headquartered in Midtown Manhattan, New York City. Its recorded founding year is 2008.

Public business description

American broadcasting company headquartered in Midtown Manhattan, New York City

Country in source record

United States

Founding year in source record

2008

## Recorded founders

- [David Margolese](https://businessownerindex.com/founder-reference/people/david-margolese-q5237122/) · entrepreneur
- [Martine Rothblatt](https://businessownerindex.com/founder-reference/people/martine-rothblatt-q6777103/) · American lawyer, researcher, writer, and businessperson
- [Robert Briskman](https://businessownerindex.com/founder-reference/people/robert-briskman-q7342369/) · American radio executive

The linked people are recorded under the company’s founder property in the cited dataset. This is a founding association, rather than a verification of current equity or management responsibility.

## Understanding Sirius XM Rad in context

Sirius XM Rad is included because its public company record connects a named business to an identifiable founding team. The business description, “American broadcasting company headquartered in Midtown Manhattan, New York City,” supplies the context for that relationship, with a recorded starting year of 2008. The source links 3 people in this library to the founding team. Each has a separate profile, which makes it possible to follow the people behind the business without treating one founder as its sole owner.

The [company website listed in the source](https://www.siriusxm.com/) is the next place to research its current offering. Compare the company’s own description, its leadership information, and dated announcements with this reference record before drawing conclusions about today’s business. A founding year describes a historical event; it does not measure business scale, growth, or the length of a founder’s continuing involvement.

This reference library documents public founding associations. It is separate from our revenue-qualified growth profiles. Founding does not establish current ownership, employment, company revenue, or an AE client relationship.

## Research trail

- [Wikidata public record Q3277465](https://www.wikidata.org/wiki/Q3277465): company description, country, founding year where present, and founder associations.
- [Sirius XM Rad website as listed in the public record](https://www.siriusxm.com/)

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