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Firms / 3• I••••••••• P••

3• I••••••••• P••

Infrastructure · probableUpper middle marketLondon3•.comSEC exempt reporting adviser

3i is an investment company specialising in Private Equity and Infrastructure. We invest in mid-market companies headquartered in Europe and North America.

Classification
Class
Infrastructureprobable, confidence 80%
Basis
own website statement
Size band
Upper middle marketdefined by: proxy: $10.23bn Private Equity Fund GAV on the Form ADV filed 2024-06-24
Strategies
GROWTH EQUITY, INFRASTRUCTURE
Classification history (2)
  1. Sep 13, 2026
    Infrastructure (probable, 80%, cls-pe-1)
    own website statement
    “We are a leading mid-market infrastructure investor, focused on investing in core-plus assets with strong infrastructure characteristics.”
    3•.com
  2. Sep 13, 2026
    Buyout firm (confirmed, 85%, cls-pe-1)
    R6: 35 of 36 distinct vehicles are sworn Private Equity Funds; 18 reported gross assets on a filing in 2022 or later
Regulatory footprint (Form ADV)
Adviser type
exempt reporting adviser
Form ADV filings
Mar 28, 2012 to Jun 24, 2024
RAUM
unknownregulatory assets under management of the adviser; not dry powder, not a fund size
PE funds, latest filing
17
PE fund GAV, latest filing
$10Breported gross assets (Form ADV), not fund size
All private fund GAV
$15Bevery private fund type, latest filing
2024 PE fund GAV
$10Bsum over funds typed Private Equity Fund with a 2024 or later as-of date
PE share of funds, lifetime
97%
Fund type mix
filed 2024-06-24, latest gav Other Private Fund $5.0B, Private Equity Fund $10B, latest counts Other Private Fund 1, Private Equity Fund 17, lifetime distinct Other Private Fund 1, Private Equity Fund 35
Employees
unknown
Headquarters
London, United Kingdom
Office address
16 PALACE STREET, London, SW1E 5JD
Business phone
+44 20 7975 3131
Stated criteria beside observed behaviour
80 observed deals
Stated by the firm
Sectors
infrastructure, energy, technology, consumer
Geography
North America, Europe, Global
Revenue
not stated or not yet read
EBITDA
not stated or not yet read
Enterprise value
not stated or not yet read
Equity check
not stated or not yet read
Control
control
Thesis
We partner with founders and management teams of mid-market companies to accelerate and sustain international growth.
Observed from deals on record
roles
unknown 80
period
to unknown, from unknown, undated holdings 80, dated observations 0
window
last unknown, first unknown
control
unknown 80
companies
80
geography
investments
80
seller kinds
transactions
0
cadence by year
platform add on
add ons 0, platforms 0, add ons per platform unknown
sector known for
7
disclosed value usd
n 0
sector distribution
count 3, share 0.037, value industrial manufacturing, examples Weener Plastics, Dynatect Manufacturing, European Bakery Group, count 2, share 0.025, value business services, examples Constellation, SLR Consulting, count 1, share 0.013, value media telecom, examples Wireless Infrastructure Group, count 1, share 0.013, value software, examples Sectors
holding period years
n 0
repeat counterparties
subsector distribution
count 1, share 0.013, value media telecom, examples Wireless Infrastructure Group, count 1, share 0.013, value plastics rubber products, examples Weener Plastics, count 1, share 0.013, value insurance agencies brokerage, examples Constellation, count 1, share 0.013, value miscellaneous manufacturing, examples Dynatect Manufacturing, count 1, share 0.013, value food manufacturing, examples European Bakery Group, count 1, share 0.013, value software, examples Sectors, count 1, share 0.013, value engineering services, examples SLR Consulting

80 companies on the graph (0 transactions); most in industrial manufacturing (3); no dated observations

Funds
36 on record
FundVehicleVintageReported gross assets (Form ADV), not fund sizeGAV by yearForm D soldLifecycle
3• Z••••• a• L•
ADV: Private Equity Fund
buyout or unlabelled2023
first reported on Form ADV
$219M
as of Jun 24, 2024
no Form DEarly deployment
3• A••• L•
ADV: Private Equity Fund
buyout or unlabelled2023
first reported on Form ADV
$142M
as of Jun 24, 2024
no Form DEarly deployment
P• 2•••••• C•••••••• L•
ADV: Private Equity Fund
Co-investment vehicle2022
year in the fund name
$14.1M
as of Jun 24, 2024
no Form DUnknown
3• 2••• C••••••••• 1• S•••
ADV: Private Equity Fund
Co-investment vehicle2020
year in the fund name
$8.4B
as of Jun 24, 2024
no Form DEarly deployment
P• 2•••••• C•••••••• L•
ADV: Private Equity Fund
Co-investment vehicle2019
year in the fund name
$5.5M
as of Jun 24, 2024
no Form DSuccessor fundraising
P• 2•••••• C•••••••• L•
ADV: Private Equity Fund
Co-investment vehicle2016
year in the fund name
$4.8M
as of Jun 24, 2024
no Form DHarvest
3• M••• S•• L•
ADV: Private Equity Fund
buyout or unlabelled2014
first reported on Form ADV
$40.9M
as of Jun 28, 2018
no Form DWound down
3• M••• S•• L•
ADV: Private Equity Fund
buyout or unlabelled2014
first reported on Form ADV
$7.0M
as of Jul 2, 2015
no Form DWound down
3• J•••••• H•• L•
ADV: Private Equity Fund
buyout or unlabelled2014
first reported on Form ADV
$2.8M
as of Jul 11, 2023
no Form DUnknown
3• J•••••• H•• L•
ADV: Private Equity Fund
buyout or unlabelled2014
first reported on Form ADV
$1.9M
as of Jul 11, 2023
no Form DMature
3• P• 2••••••• L•
ADV: Private Equity Fund
buyout or unlabelled2013
year in the fund name
$135M
as of Jul 11, 2023
no Form DHarvest
3• N••••••• F•••••• L•
ADV: Private Equity Fund
buyout or unlabelled2013
first reported on Form ADV
$529,428
as of Jun 28, 2018
no Form DWound down
P• 2•••••• D•• L•
ADV: Private Equity Fund
buyout or unlabelled2013
year in the fund name
$355,898
as of Jul 2, 2015
no Form DWound down
3• G••••• 2••• L•
ADV: Private Equity Fund
Growth fund2010
year in the fund name
$706M
as of Jul 2, 2015
no Form DWound down
G••••• C•• 2••• L•
ADV: Private Equity Fund
Growth fund2010
year in the fund name
$4.1M
as of Jun 24, 2024
no Form DUnknown
G••••• C•••••••• 2••• L•
ADV: Private Equity Fund
Co-investment vehicle2010
year in the fund name
$565,161
as of Jun 24, 2024
no Form DUnknown
3• G••••• G••••• 2•••••• L•
ADV: Private Equity Fund
Growth fund2006
year in the fund name
$573M
as of Jun 28, 2012
no Form DWound down
U• G••••• C•••••••• 2•••••• L•
ADV: Private Equity Fund
Co-investment vehicle2006
year in the fund name
$268
as of Jun 19, 2020
no Form DWound down
U• G••••• 2•••••• L•
ADV: Private Equity Fund
Growth fund2006
year in the fund name
$139
as of Jul 2, 2015
no Form DWound down
P•• E••••••• B•••••• C•••••••• 2•••••• L•
ADV: Private Equity Fund
Co-investment vehicle2006
year in the fund name
$0
as of Jul 11, 2023
no Form DWound down
3• I••••••••• P••
ADV: Other Private Fund
Infrastructure fundunknown$5.0B
as of Jun 24, 2024
no Form DMature
3• B•••••• 2•••• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$1.3B
as of Jun 24, 2024
no Form DHarvest
3• E••••••••• V• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$11.6M
as of Jun 24, 2024
no Form DHarvest
3• G••••• C•••••• B• L•
ADV: Private Equity Fund
Growth fundunknown$10.4M
as of Jun 24, 2024
no Form DUnknown
3• E••••••••• V• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$9.8M
as of Jun 24, 2024
no Form DHarvest
3• U• I••••••••• P••••••• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$9.7M
as of Jun 26, 2014
no Form DWound down
3• I•••• I••••••••• F••• C• L•
ADV: Private Equity Fund
Infrastructure fundunknown$2.9M
as of Jun 24, 2024
no Form DUnknown
3• E••••••••• I•• a• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$1.4M
as of Jul 2, 2015
no Form DWound down
3• E••••••••• I•• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$1.1M
as of Jun 28, 2018
no Form DWound down
3• E••••••••• I•• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$701,100
as of Jun 28, 2018
no Form DWound down
3• G••••• 0•••• L•
ADV: Private Equity Fund
Growth fundunknown$223,389
as of Jun 27, 2019
no Form DWound down
3• I•••• I••••••••• F••• D• L•
ADV: Private Equity Fund
Infrastructure fundunknown$211,924
as of Jun 24, 2024
no Form DHarvest
I•••• I••••••••• F••• a• L•
ADV: Private Equity Fund
Infrastructure fundunknown$140,963
as of Jun 24, 2024
no Form DHarvest
3• G••••• C•••• a• L•
ADV: Private Equity Fund
Growth fundunknown$3,208
as of Jul 2, 2015
no Form DWound down
3• G••••• C•••• B• L•
ADV: Private Equity Fund
Growth fundunknown$2,117
as of Jul 2, 2015
no Form DWound down
3• O••••• L•
ADV: Private Equity Fund
buyout or unlabelledunknown$0
as of Jun 24, 2024
no Form DUnknown
Team
118 current, 8 former
Managing partner (6)
Partner (21)
Principal (44)
Vice president (21)
Associate (10)
Investor relations (1)
Platform (10)
Other (1)
8 former (kept with end dates)
Portfolio
80 relationships, 0 platforms, 0 add-ons
CompanyRoleStatusInvestedHeldPartnerSource
A•••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A•••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A•••• P••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A•••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A••••• T•••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
A••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
B••••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
B•••••• C••• A••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
B••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
C•••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
C••••• M••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
C•••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
C•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
C•••• L••••• T••••• ••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
C•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
D••••••• M•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E• W••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E•••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E•• U•••••••• G••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E•••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E••••••• B••••• G••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
E•••••••• R•••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
F•••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
F••••• B•••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
G•••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
G•••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
H•••• G••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
H•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
H••••• I•••••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
H•••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
I••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
I••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
J••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
K••••• S••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
L••••• M••• D•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
L•••• G••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
M••••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
M••• G••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
M••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
M••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
M••• M••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
M••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
n•••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
N••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
N•••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
O•• P•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
O•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
Q• H••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
Q••••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
R••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
R•••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
R••••••• R•••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
R••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
R•••• S••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
S•••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
S•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
S••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
S••••• T••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
S•• C•••••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
S••••• C••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
S•• T•••••• S••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
T••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
T••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
t•••• h•••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
T••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
V•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
V••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
V•••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
W•••••••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
W••••• P•••••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
W•••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
W••••••• I••••••••• G••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
X•••••Role unknownexitedunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
x•••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
Y••••Role unknownactiveunknownunknownunknownFact Investment organization websites (team, portfolio, strategy, criteria, news)
Transactions
0 on record
No transaction naming this firm has been collected yet. The deal tape is read from SEC filings and cited announcements.
Placement agents, lenders, advisers and co-investors
0 relationships
No counterparty collected yet. These are counted from transactions that name both this firm and the other party, and from placement agents on this firm’s funds.
LP commitments
0 disclosed
No LP commitment collected yet. An LP edge needs a public disclosure with a quote, such as a pension plan’s report or an announcement naming the LP.
Events
5 most recent
  1. Aug 3, 2026
    03 Aug 2026 R••••••• R••• expands Northeast network with the acquisition of the Massachusetts Central R•••road
    Firm newsFactInvestment organization websites (team, portfolio, strategy, criteria, news)
  2. Aug 3, 2026
    26 Jun 2026 E•••••• expands UK IT infrastructure capabilities with acquisition of Empowered and OrderWork
    Firm newsFactInvestment organization websites (team, portfolio, strategy, criteria, news)
  3. Aug 3, 2026
    03 Jun 2026 3i invests in leading French natural nutrition brand N••••••• Consumer & Private Label
    Firm newsFactInvestment organization websites (team, portfolio, strategy, criteria, news)
  4. Jun 29, 2026
    3• I••••••••• P••: Private Equity Funds on Form ADV 17 (2024 extract) -> 15 (roster 2026-09-01)
    Pe fund count changedFactSEC Form ADV monthly roster (registered + exempt reporting advisers)
  5. Mar 28, 2012
    3• I••••••••• P•• first filed Form ADV in the extract (ERA)
    First Form ADV filingFactSEC Form ADV filing data 2011 to 2024 (Schedule D 7.B.(1) private funds, Schedules A/B, 1.I websites)