email convention: 
[email protected]
# of Employees: 
Annual Revenue Estimate: 
Overall Ranking (98%)

The Overall Ranking is a score from 1 star (very bad) to 5 stars (excellent) generated based on the Company Reviews of current and former employees at this company, taking everything into account.

The number you see in the middle of the donut pie chart is the simple average of these scores. If you hover over the various sections of the donut, you will see the % breakdown of each score given.

The percentile score in the title is calculated across the entire Company Database and uses an adjusted score based on Bayesian Estimates (to account for companies that have few reviews). Simply put, as a company gets more reviews, the confidence of a "true score" increases so it is pulled closer to its simple average and away from the average of the entire dataset.

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William Blair is a full-service, independent investment firm with a singular mission to achieve success for its clients.

Based in Chicago, the bank provides comprehensive investment banking, Asset Management, equity research, institutional and private brokerage, and private capital for corporations, institutions, and individuals. With offices in the United States, Europe, and Asia, William Blair & Company is established nationally and internationally.


Boston office
125 High Street Oliver Street Tower, Suite 1901
02110 Boston , MA
United States
Phone: 617.235.7500
42° 21' 20.9232" N, 71° 3' 10.6812" W
Massachusetts US
Wilmington office
500 Delaware Avenue Suite 720
19801 Wilmington , DE
United States
Phone: 302.573.5000
Fax: 302.573.5168
39° 44' 52.6488" N, 75° 33' 7.2828" W
Delaware US
San Francisco office
343 Sansome Street Suite 1210
94104 San Francisco , CA
United States
Phone: 415.986.5596
37° 47' 36.7656" N, 122° 24' 4.4784" W
California US
New York office
666 Fifth Avenue 14th Floor
10103 New York , NY
United States
Phone: 212.237.2700
40° 45' 36.4104" N, 73° 58' 33.9852" W
New York US
222 West Adams Street
60606 Chicago , IL
United States
Phone: 312.236.1600
41° 52' 45.9372" N, 87° 38' 5.46" W
Illinois US
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