United States · Investor

Essex Investment Management

Last cheque observed Mar 2001. Silence since then is not evidence of inactivity: our sources miss unannounced rounds.

QuietVC firm

SeedSeries ASeries BConsumer ElectronicsRobotics

Cheques on record
0%of best year0cheques in 12 months, 3 on record
Since the last cheque9344days00hrs00min00sec
Median round$80MRounds led0 of 3Exits1 from the portfolio
Pitch Essex Investment Management

Essex Investment Management highlights

  1. 01

    3 rounds on record

  2. 02

    Mostly Series B: 100% of its rounds

  3. 03

    1 exits from the portfolio

What they do

Type
VC firm (from a list, unverified)
Cheque size
Not stated
Stages
SeedSeries ASeries BGrowth
Sectors
Consumer ElectronicsRobotics
Based in
Duvall, United States
Cold pitches
Not stated

The record

Every round we can evidence, newest first3 appearances

  1. 2001

    1 round

  2. Mar
    Novera OpticsSeries B · US$83MWith 9 others
  3. 2000

    2 rounds

  4. Nov
    Protonex Technology CorporationSeries B · US$80MWith 4 others
  5. Jul
    eRoom Technology$21MWith 10 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

The team

Named by the firm itself, on a filing, its Form ADV or its company registration6 named

AGAnnemarie Gelata McmichaelResearch Analyst, Non-Managing MemberiForm ADV
JCJoseph Claudius McnayChairman & Managing MemberiForm ADV
MSMichael Stephen MccarthyCCO/COO/Managing MemberiForm ADV
NBNancy Beth PrialCo-CEO & Managing MemberiForm ADV
RJRobert Joseph UekCo-CEO & Managing MemberiForm ADV
SSSaralyn SacksSenior Portfolio Manager & Non-Managing MemberiForm ADV

We also hold 15 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

What the register says

From the firm's own filings with the SEC, which it must file accurately by law

$713Massets it managesOct 2026
Registeredinvestment adviserfull reporting to the SEC
Legal name
Essex Investment Management Company, LLC
SEC number
CRD 109962

Funds on its Form ADV

2 private funds, $21M in gross assets · filed Apr 2024

  1. Essex Performance Fund, L.P.Hedge7 investors$14M
  2. Essex Micro CAP Growth Fund, LLCHedge8 investors$7.4M

Exits from the portfolio

Companies it backed that were later bought or listed1 in all

Protonex Technology CorporationBought by Ballard Power Systems$30MJun 2015

An exit counts when it came after the firm's first round in the company. From historical deal records.

Who they invest alongside

The investors most often in the same rounds as Essex Investment Management. A count of rooms they were both in, not a relationship either has claimed.

Quick answers about Essex Investment Management

What does Essex Investment Management invest in?

Essex Investment Management invests most often at Series B (100% of the rounds on record), in sectors such as Consumer Electronics and Robotics.

How active is Essex Investment Management?

3 investments on record, 0 of them in the last 12 months. The most recent was in Mar 2001.

How big are Essex Investment Management's cheques?

The median round it joins is $80M.

Is Essex Investment Management investing now?

No investments in the last 12 months; the latest was in Mar 2001.

Who does Essex Investment Management invest alongside?

Most often Intel Capital (2 rounds together), Matrix Partners (2 rounds together) and North Bridge Venture Partners & Growth Equity (2 rounds together).

What kind of investor is Essex Investment Management?

Essex Investment Management is a VC firm based in Duvall, United States.

How much does Essex Investment Management manage?

About $713M, as regulatory assets under management (Oct 2026).

When was Essex Investment Management founded?

Essex Investment Management was founded in 1976.

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Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it