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William Blair Circle: Funding, Team & Investors | Startup Intros

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William Blair Circle

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Updated: Apr 2, 2026 ·

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Quick Facts

Type: Investment Firm
Status: Active
HQ: Chicago, IL, USA
IPO Status: Private

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Financial History

Total Raised

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Valuation

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Financial History

Total Raised

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Valuation

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Investments Made

Date	Company	Round	Lead Investor(s)	Co-Investor(s)
Jun 6, 2019	Halo Investing	$12.0M Series B	—	Corey Walther, Jon Zindel