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Windsor Circlerevenue & acquisition

Other Digital Advertising SoftwareDurham, North CarolinaFounded 2011

Windsor Circle was acquired by OSG Billing Services.

Windsor Circle is an Other Digital Advertising Software company based in Durham, founded in 2011.

windsorcircle.comLinkedInUpdated Aug 10, 2026
Annual revenue
$111.2K
Apr 2021
Owner
OSG Billing Services
Date not on record
Employees
5
Apr 2021

Windsor Circle revenue

Windsor Circle's annual revenue was $111.2K in April 2021, its last figure before OSG Billing Services bought it (source not recorded).

$0
$50K
$100K
$111.2K
2021
ReportedOne figure per year; a reported figure wins over an estimate
As ofRevenueSource
Apr 2021$111.2K–

– source not recorded

Who owns Windsor Circle

OSG Billing Services owns Windsor Circle. The date and price of the deal are not on record.

Windsor Circle CEO, founders & employees

Matthew Williamson founded Windsor Circle in 2011 and led it as CEO. Windsor Circle had 5 employees (April 2021).

0
2
4
5
2021
ReportedOne figure per year; a reported figure wins over an estimate

Team mix (Apr 2021): 1 engineers, 1 in sales, 1 in marketing

Windsor Circle FAQ

How much money does Windsor Circle make?

The most recent figure is $111.2K in annual revenue, from April 2021 (source not recorded), before OSG Billing Services bought the company.

Who owns Windsor Circle?

OSG Billing Services owns Windsor Circle.

Is Windsor Circle publicly traded?

No. Windsor Circle is part of OSG Billing Services.

Who founded Windsor Circle?

Matthew Williamson, in 2011.

How many employees does Windsor Circle have?

About 5 as of April 2021.

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How this page is sourced

Founder figures link to the second they were said; public figures name their source; estimates are marked EST. and say whose they are. Not financial advice.

Updated Aug 10, 2026Data disclaimerReport a correctionClaim this profileRun Windsor Circle? Join the podcast