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Private equityFirmfund of funds · probablelower middle market

Klingenstein Fields Advisors

Private Equity

New York, NY

This is the graph view. The full profile, with its team, deals and sources, is on Private Equity.Open the full profile →

Search this name across graphsid dfx:pe:5999c8dd-bcfb-4805-ac79-774ec67b36b6

Data as of Sep 17, 2026 (this record's last observation) from federal regulator filings, firm and issuer disclosures. Page built Sep 20, 2026, 4:41 AM UTC and rebuilt at most every 15 minutes.

Relationships: 37
Dated events: 39
On other graphs: 4
Observed: Sep 13, 2026 to Sep 17, 2026
25 observations

Across DFX

same identity by shared identifier, citation, or a bridge measured by hand

Venture Capitalidentity

Klingenstein Fields Advisors

Venture manager · shared crd

Independent Sponsorsidentity

Klingenstein Fields Advisors

Capital provider to sponsors · shared crd

RIA / Wealth Managementidentity

KLINGENSTEIN FIELDS ADVISORS

Registered adviser · shared crd

Private Creditidentity

KLINGENSTEIN FIELDS ADVISORS

Private credit manager · shared crd

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Funds: 21
PE funds: 18
Vintages: 2014 to 2014
PE GAV, 2024 filing: $313Mgross asset value on Form ADV; never dry powder
Regulatory AUM: $4.6B
Investments: 0
Active investments: 0
Size band: LOWER MIDDLE MARKETderivedproxy: $0.31bn Private Equity Fund GAV on the Form ADV filed 2024-07-30
Latest ADV filing: Jul 30, 2024
Employees (ADV): 40
Website: klingenstein.com

Funds

Fund	Vintage	Lifecycle	ADV type	Form D sold	GAV
K Investments Viii LLC	2014	Harvest	Venture Capital Fund	n/a	$10.8M
K Investment Partners, LP IV	n/a	Wound down	Private Equity Fund	n/a	$348,616
K Investment Partners, LP III	n/a	Wound down	Private Equity Fund	n/a	$845,799
K Investments III, LLC	n/a	Harvest	Private Equity Fund	n/a	$772,542
K Mezzanine Partners I, LLC	n/a	Unknown	Private Equity Fund	n/a	$0
Klingenstein Charitable Partners, B	n/a	Wound down	Private Equity Fund	n/a	$211,446
K Stations, LLC	n/a	Unknown	Private Equity Fund	n/a	$0
Klingenstein Charitable Partners, 2nd Amendment	n/a	Wound down	Private Equity Fund	n/a	$290,714
K Investments I, LLC	n/a	Wound down	Private Equity Fund	n/a	$0
Wertheim Ticket Fund, LLC	n/a	Unknown	Private Equity Fund	n/a	$6.1M
Wertheim International LLC	n/a	Wound down	Private Equity Fund	n/a	$0
K Investments IV, LLC	n/a	Harvest	Private Equity Fund	n/a	$2.7M
K Investments VI, LLC	n/a	Harvest	Private Equity Fund	n/a	$4.9M
K Investments II, LLC	n/a	Harvest	Private Equity Fund	n/a	$34,362
FK Investments I, LLC	n/a	Mature	Private Equity Fund	n/a	$690,727
K Investment Partners, LP II	n/a	Wound down	Private Equity Fund	n/a	$43,476
Wertheim Ventures I, LLC	n/a	Mature	Private Equity Fund	n/a	$288M
K Investments V, LLC	n/a	Harvest	Private Equity Fund	n/a	$1.7M
Klingenstein Fields Global Fund, LP	n/a	Unknown	Other Private Fund	n/a	$2.8M
Klingenstein Fields Asia Fund, LP	n/a	Unknown	Other Private Fund	n/a	$12.1M
K Investments VII, LLC	n/a	Harvest	Private Equity Fund	n/a	$7.8M

Relationships

Employs (14)

→ Kenneth PollingerPersonTrustee For The Joseph Klingenstein Trust #2 Dated 7/25/74 Fbo Frederic K A. Klingenstein And His Issue, Fak, Khf & Kdp Trustees
Aug 1, 2020 to presentfactForm ADV
→ Yuh-Yng LeePersonLimited Partner And Chief Financial Officer
Jan 1, 2022 to presentfactForm ADV
→ Maria ChambersPersonChief Compliance Officer
Jan 1, 2017 to presentfactForm ADV
→ James FieldsPersonLimited Partner, Co-Chief Executive Officer, President
Jan 1, 2022 to presentfactForm ADV
→ Laurence Ernest AchPersonLimited Partner
Jan 1, 2022 to presentfactForm ADV
→ Jonathan RobertsPersonLimited Partner
Jan 1, 2022 to presentfactForm ADV
→ Kenneth FieldsPersonTrustee For The Joseph Klingenstein Trust #2 Dated 7/25/74 Fbo Frederic K A. Klingenstein And His Issue, Fak, Khf & Kdp Trustees
Aug 1, 2020 to presentfactForm ADV
→ Susan CurryPersonLimited Partner And Chief Operating Officer
Jan 1, 2022 to presentfactForm ADV
→ Colleen Marie JonesPersonMember, Sr. Vice President
Jan 1, 2005 to Mar 29, 2019inferenceForm ADV
→ John KlingensteinPersonMember
Jan 1, 1989 to Mar 29, 2019inferenceForm ADV
→ Frederick KlingensteinPersonMember, Chairman Emeritus
Jan 1, 2013 to Mar 29, 2019inferenceForm ADV
→ IAN MaccallumPersonMember, Sr. Vice President
Aug 1, 1999 to Mar 24, 2014inferenceForm ADV
→ Robert ShapiroPersonMember, Vice Chairman
Jun 1, 1997 to Mar 24, 2014inferenceForm ADV
→ John FurthPersonMember, Vice Chairman
Sep 1, 1999 to Mar 24, 2014inferenceForm ADV

Manages (21)

→ K Investments Viii LLCFundPrivate Equity Fund
Apr 25, 2014 to presentfactForm ADV
→ K Mezzanine Partners I, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Stations, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ Klingenstein Charitable Partners, 2nd AmendmentFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ Klingenstein Charitable Partners, BFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ Klingenstein Fields Asia Fund, LPFundOther Private Fund
Mar 28, 2012 to presentfactForm ADV
→ Klingenstein Fields Global Fund, LPFundOther Private Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investment Partners, LP IIFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investment Partners, LP IIIFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investment Partners, LP IVFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ FK Investments I, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investments I, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investments II, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investments III, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investments IV, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investments V, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investments VI, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ K Investments VII, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ Wertheim Ventures I, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ Wertheim Ticket Fund, LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV
→ Wertheim International LLCFundPrivate Equity Fund
Mar 28, 2012 to presentfactForm ADV

Owns (2)

← Klingenstein Management CorporationFirmGeneral Partner
Aug 1, 2020 to presentfactForm ADV
← Joseph Klingenstein Trust #2 Dated 7/25/74 FBO Frederick a. Klingenstein and His Issue, Fak, Khf & Kdp TrusteesFirmLimited Partner
Aug 1, 2020 to presentfactForm ADV

Dated events

29 bookkeeping events (roster, classification and holdings changes) folded below

Occurred
Aug 1, 2020
Person joined
Laurence Ernest Ach joined Schedule A of Klingenstein Fields Advisors as Limited Partner, Sr. Vice President
Form ADVobserved 6 days ago
Occurred
Mar 29, 2019
Person left
John Klingenstein (Member) no longer on Schedule A of Klingenstein Fields Advisors
Form ADVobserved 6 days ago
Occurred
Mar 29, 2019
Person left
Frederick Klingenstein (Member, Chairman Emeritus) no longer on Schedule A of Klingenstein Fields Advisors
Form ADVobserved 6 days ago
Occurred
Mar 29, 2019
Person left
Colleen Marie Jones (Member, Sr. Vice President) no longer on Schedule A of Klingenstein Fields Advisors
Form ADVobserved 6 days ago
Occurred
Jan 1, 2017
Person joined
Maria Chambers joined Schedule A of Klingenstein Fields Advisors as Vice President, Chief Compliance Officer
Form ADVobserved 6 days ago
Occurred
Mar 24, 2014
Person left
Robert Shapiro (Member, Vice Chairman) no longer on Schedule A of Klingenstein Fields Advisors
Form ADVobserved 6 days ago
Occurred
Mar 24, 2014
Person left
IAN Maccallum (Member, Sr. Vice President) no longer on Schedule A of Klingenstein Fields Advisors
Form ADVobserved 6 days ago
Occurred
Mar 24, 2014
Person left
John Furth (Member, Vice Chairman) no longer on Schedule A of Klingenstein Fields Advisors
Form ADVobserved 6 days ago
Occurred
Nov 30, 2011
Adviser first adv filing
Klingenstein Fields Advisors first filed Form ADV in the extract (IA)
Form ADVobserved 6 days ago
Occurred
Jan 1, 2011
Person joined
Yuh-Yng Lee joined Schedule A of Klingenstein Fields Advisors as Member, Sr. Vice President, Cfo
Form ADVobserved 6 days ago

Show 29 bookkeeping events

Occurred
Jul 28, 2026
Klingenstein Fields Advisors: Private Equity Funds on Form ADV 9 (2024 extract) -> 8 (roster 2026-09-01)
Occurred
Mar 30, 2022
Fund 805-7246682815 no longer reported on Form ADV by Klingenstein Fields Advisors
Occurred
Mar 30, 2020
Fund 805-9034660628 no longer reported on Form ADV by Klingenstein Fields Advisors
Occurred
Mar 30, 2020
Fund 805-4804296121 no longer reported on Form ADV by Klingenstein Fields Advisors
Occurred
Mar 30, 2020
Fund 805-8293559584 no longer reported on Form ADV by Klingenstein Fields Advisors
Occurred
Mar 29, 2019
Fund 805-8879288614 no longer reported on Form ADV by Klingenstein Fields Advisors
Occurred
Apr 25, 2014
K Investments Viii LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $1,750,000
Occurred
Mar 24, 2014
Fund 805-5418577214 no longer reported on Form ADV by Klingenstein Fields Advisors
Occurred
Mar 24, 2014
Fund 805-3077450747 no longer reported on Form ADV by Klingenstein Fields Advisors
Occurred
Mar 28, 2012
K Stations, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund)
Occurred
Mar 28, 2012
Klingenstein Charitable Partners, 2nd Amendment first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $1,168,049
Occurred
Mar 28, 2012
Klingenstein Charitable Partners, B first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $292,553
Occurred
Mar 28, 2012
Klingenstein Fields Asia Fund, LP first reported on Form ADV by Klingenstein Fields Advisors (Other Private Fund), GAV $10,958,447
Occurred
Mar 28, 2012
Klingenstein Fields Global Fund, LP first reported on Form ADV by Klingenstein Fields Advisors (Other Private Fund), GAV $2,024,578
Occurred
Mar 28, 2012
K Investment Partners, LP II first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $80,433
Occurred
Mar 28, 2012
K Investments I, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $4,932,194
Occurred
Mar 28, 2012
FK Investments I, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $8,121,999
Occurred
Mar 28, 2012
K Investment Partners, LP IV first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $5,700,227
Occurred
Mar 28, 2012
K Investment Partners, LP III first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $1,276,662
Occurred
Mar 28, 2012
K Investments IV, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $44,586,341
Occurred
Mar 28, 2012
K Investments VI, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $31,383,979
Occurred
Mar 28, 2012
K Investments VII, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $30,739,084
Occurred
Mar 28, 2012
Wertheim Ventures I, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $53,956,133
Occurred
Mar 28, 2012
Wertheim Ticket Fund, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $4,134,800
Occurred
Mar 28, 2012
Wertheim International LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $4,000,000
Occurred
Mar 28, 2012
K Mezzanine Partners I, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund)
Occurred
Mar 28, 2012
K Investments V, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $32,693,111
Occurred
Mar 28, 2012
K Investments II, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $12,170,601
Occurred
Mar 28, 2012
K Investments III, LLC first reported on Form ADV by Klingenstein Fields Advisors (Private Equity Fund), GAV $13,798,326

Who to call

the organisation, the role and the published line, with the filing or website that published it; revealed to signed-in accounts

The firm's published line

Revealable: 1 business phone (Form ADV), 1 office address (Form ADV), 1 website (Form ADV) · as of 2026-09-13

Also named here, with no published line of their own (reach them through the firm): Kenneth Pollinger (Trustee For The Joseph Klingenstein Trust #2 Dated 7/25/74 Fbo Frederic K A. Klingenstein And His Issue, Fak, Khf & Kdp Trustees), Yuh-Yng Lee (Limited Partner And Chief Financial Officer), Maria Chambers (Chief Compliance Officer), James Fields (Limited Partner, Co-Chief Executive Officer, President), Laurence Ernest Ach (Limited Partner), Jonathan Roberts (Limited Partner), Kenneth Fields (Trustee For The Joseph Klingenstein Trust #2 Dated 7/25/74 Fbo Frederic K A. Klingenstein And His Issue, Fak, Khf & Kdp Trustees), Susan Curry (Limited Partner And Chief Operating Officer).

Who to call is the organisation, the person's role and the line they published themselves: a business phone, office address, website or profile link from Form ADV, Form 13F or their own website, with that source named on every value. The counts above are what a reveal returns; a personal email is rarely published, so most reveals are the firm's line. Never data bought from a provider, never anything personal. Reveals by plan

Provenance

Graph: Private Equity
Canonical id: dfx:pe:5999c8dd-bcfb-4805-ac79-774ec67b36b6
First observed: Sep 13, 2026
Last observed: Sep 17, 2026 2 days ago
Source families: Federal regulator filings, Firm and issuer disclosures
3 registered feeds stand behind this record; each fact above carries its own dates and, where the publisher serves one, its document.
Resolution: Identity across graphs by shared identifier (CRD, CIK, EIN, ADV fund id, individual CRD) or citation; a name match is shown as a candidate and never merged.

Klingenstein Fields Advisors

Private Equity

New York, NY

This is the graph view. The full profile, with its team, deals and sources, is on Private Equity.Open the full profile →

Search this name across graphsid dfx:pe:5999c8dd-bcfb-4805-ac79-774ec67b36b6

Data as of Sep 17, 2026 (this record's last observation) from federal regulator filings, firm and issuer disclosures. Page built Sep 20, 2026, 4:41 AM UTC and rebuilt at most every 15 minutes.