Essex Investment Management Company, LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in Boston, MA. Its latest Form ADV filing, dated March 30, 2026, reports $713M in regulatory assets under management, 13 employees, 1 office, and 117 accounts.
Assets Under Management
$713M
Employees
13
Offices
1 office
Total Clients
117
Primary office
BOSTON, MA
125 HIGH STREET, SUITE 1803, BOSTON, MA, United States
Portfolio management for individuals and small businesses
Portfolio management for investment companies
Fee models offered
1 types reported
Asset based fees
Sources checked May 13, 2026
Client Coverage Demographics
Top client segmentHNWI represent 47.0% of total clients.
Top client categories% of clientsClients
1
HNWI
47.0%
55
2
Individuals
29.9%
35
3
Charitable
12.0%
14
4
Government
6.8%
8
5
Investment Cos.
1.7%
2
Categories with <5 clients
Pension and profit sharing plans<5 clients
Regulatory Assets Under Management Breakdown
Total regulatory assets under management$713Mas of March 30, 2026
Discretionary100.0%
$713M
100% of total RAUM100.0%
Non-discretionary0.0%
$0
0% of total RAUM0.0%
All regulatory assets under management are discretionary.
Assets under management Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Latest AUM$713M
Total Accounts117
10Y AUM Change+$96M (+15.6%)
Employee Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Total Employees13
Clients per Employee9:1
10Y Employee Change-6 (-31.6%)
* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.