Data / Investment advisers / Massachusetts / Essex Investment Management Company, LLC
Essex Investment Management Company, LLC, Boston, MA: $713 million AUM, SEC registered investment adviser
Updated November 7, 2026. Source: the SEC's Form ADV data files for investment advisers.
Essex Investment Management Company, LLC is an SEC registered investment adviser with its main office in Boston, Massachusetts and reports $713 million in regulatory assets under management in its Form ADV filed March 30, 2026. Its clients include state and municipal governments, high net worth individuals and investment companies. It is paid through a percentage of assets under management.
The request: Watch Essex Investment Management Company, LLC (CRD number 109962): each new Form ADV amendment, with AUM, clients and private funds. $10 of work on sign-up, no card.
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- Registration
- SEC registered investment adviser
- CRD number
- 109962
- SEC file number
- 801-55496
- SEC status
- Approved, effective March 20, 1998
- Main office
- 125 High Street Suite 1803, Boston, MA 02110
- Phone
- (617) 342-3200
- Website
- essexinvest.com
- Regulatory AUM
- $712,676,443 in the Form ADV filed March 30, 2026
- Discretionary AUM
- $712,676,443
- Accounts
- 117
- Employees
- 13, of which 9 give investment advice
- Form of organization
- Limited Liability Company
- Paid through
- a percentage of assets under management
- Other offices
- 1
- Form ADV Item 11 disclosures
- None reported
- Latest Form ADV filing
- March 30, 2026
- SEC record
- Investment Adviser Public Disclosure
Clients
Client types the adviser reports in Form ADV item 5.D, with the AUM it attributes to each.
| Client type | Clients | AUM |
|---|---|---|
| State or municipal government entities | 8 | $226.9 million |
| High net worth individuals | 55 | $130.4 million |
| Investment companies | 2 | $123 million |
| Charitable organizations | 14 | $79.1 million |
| Individuals (other than high net worth individuals) | 35 | $78.4 million |
| Pooled investment vehicles | 2 | $68.8 million |
| Pension and profit sharing plans | 1 | $6.2 million |
AUM in the SEC's monthly files
Each change in the AUM the adviser reported across the monthly SEC files held here, with the first file that shows the new value.
| First in the file of | AUM | Form ADV filed |
|---|---|---|
| April 1, 2026 | $712.7 million | March 30, 2026 |
| December 1, 2025 | $610.2 million | August 1, 2025 |
Other advisers in Boston
| Adviser | City | AUM | Private funds | Source |
|---|---|---|---|---|
| Opaleye Management Inc. | Boston | $802.8 million | 1 | adviserinfo.sec.gov |
| Astira Capital Partners LP | Boston | $777.3 million | 2 | adviserinfo.sec.gov |
| Stride Consumer | Boston | $740.3 million | 5 | adviserinfo.sec.gov |
| Bayhawk Capital LP | Boston | $730.8 million | 5 | adviserinfo.sec.gov |
| Great Point Wealth Advisors, LLC | Boston | $725.8 million | 1 | adviserinfo.sec.gov |
| Redwood Investments, LLC | Boston | $710.1 million | Not listed | adviserinfo.sec.gov |
| Lincoln Peak Capital Management, LLC | Boston | $706.5 million | 5 | adviserinfo.sec.gov |
| Kaleidoscope Capital | Boston | $706.2 million | 3 | adviserinfo.sec.gov |
Also on SpecStream
- Investment advisers in Boston, MA
- Investment advisers in Massachusetts
- Advisers with $500 million to $1 billion in AUM
- Advisers serving state and municipal governments
- Advisers serving high net worth individuals
- Essex Investment Management Company, LLC on the SEC's adviser search
Public data published by the US Securities and Exchange Commission (US government work). Advisers report these values themselves in Form ADV, and neither the SEC nor the states approve or guarantee them. AUM is regulatory assets under management as the adviser reported it in Form ADV item 5.F, which can differ from the AUM a firm quotes elsewhere. Exempt reporting advisers do not report AUM. Office address, phone and website are the adviser's main office as filed; a firm that files its main office as a private residence shows no street address or phone. An Item 11 disclosure is a reported event, not a finding about the firm today. Details for each firm are on the SEC's Investment Adviser Public Disclosure site. This page uses SEC data and is not endorsed or certified by the SEC. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.