Investment adviser · CRD 161228

ARCLIGHT CAPITAL PARTNERS, LLC

Investment adviser filing (IA)

BOSTON, MA, United States · Form ADV filed Jul 1, 2026

Regulatory AUM: $13.5B
Client accounts: 22
Employees: 60
Advisory professionals: 31

Who they report serving

Form ADV · Item 5.D

Client types and their share of reported regulatory assets.

Client type	Clients	Regulatory assets	Share of AUM
Pooled investment vehicles	22	$13,544,705,540	100.0%

Filing source

Form ADV 2115681 · Jul 1, 2026 · Item 5.D

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Private funds & service providers

21 Private funds

The count excludes feeder funds. Funds in the latest filing appear first, ordered by reported gross assets. Earlier funds retain their last reported values.

ARCLIGHT ENERGY PARTNERS FUND VII, L.P.Private Equity Fund · Last reported Jul 1, 2026$6.21BGross asset value

Form D fundraising filings

ArcLight Energy Partners Fund VII, L.P.

Feeder funds

AEP FEEDER FUND VII, LLC

Auditor DELOITTE & TOUCHE, LLP BOSTON, Massachusetts, United States

Custodian CITIBANK, N.A. NEW YORK, New York, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

DELOITTE & TOUCHE, LLP
PCAOB 34

Fund details & source

Fund ID: 805-7485443697
Reported beneficial owners: 102
Minimum commitment: $0
Form D file number: 021-315684

Form ADV 2115681 · Jul 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ARCLIGHT ENERGY PARTNERS FUND VI, L.P.Private Equity Fund · Last reported Jul 1, 2026$2.17BGross asset value

Form D fundraising filings

ArcLight Energy Partners Fund VI, L.P.

Feeder funds

AEP FEEDER FUND VI, INC.

Auditor DELOITTE & TOUCHE, LLP BOSTON, Massachusetts, United States

Custodian CITIBANK, N.A. NEW YORK, New York, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

DELOITTE & TOUCHE, LLP
PCAOB 34

Fund details & source

Fund ID: 805-4848059573
Reported beneficial owners: 249
Minimum commitment: $0
Form D file number: 021-229759

Form ADV 2115681 · Jul 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ARCLIGHT INFRASTRUCTURE PARTNERS FUND VIII-B, L.P.Private Equity Fund · Last reported Jul 1, 2026$1.87BGross asset value

Form D fundraising filings

ARCLIGHT INFRASTRUCTURE PARTNERS FUND VIII-B, L.P.

Feeder funds

ARCLIGHT INFRASTRUCTURE PARTNERS FEEDER-B, L.P.

Auditor DELOITTE & TOUCHE, LLP BOSTON, Massachusetts, United States

Custodian CITIBANK, N.A. NEW YORK, New York, United States Related to adviser: No

Marketer KB SECURITIES CO., LTD. SEOUL, Korea, South Related to adviser: No

Marketer MAGENTA CAPITAL SERVICES LTD. THE VALLEY, ANGUILLA, Anguilla Related to adviser: No

Marketer PINEGROVE CAPITAL LTD. TEL AVIV-YAFO, Israel Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: Yes

DELOITTE & TOUCHE, LLP
PCAOB 34

Fund details & source

Fund ID: 805-8091850413
Reported beneficial owners: 50
Minimum commitment: $0
Form D file number: 021-500481

Form ADV 2115681 · Jul 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ARCLIGHT INFRASTRUCTURE PARTNERS FUND VIII-C, L.P.Private Equity Fund · Last reported Jul 1, 2026$773MGross asset value

Form D fundraising filings

ARCLIGHT INFRASTRUCTURE PARTNERS FUND VIII-C, L.P.

Auditor DELOITTE & TOUCHE, LLP BOSTON, Massachusetts, United States

Custodian CITIBANK, N.A. NEW YORK, New York, United States Related to adviser: No

Marketer KB SECURITIES CO., LTD. SEOUL, Korea, South Related to adviser: No

Marketer MAGENTA CAPITAL SERVICES LTD. THE VALLEY, ANGUILLA, Anguilla Related to adviser: No

Marketer PINEGROVE CAPITAL LTD. TEL AVIV-YAFO, Israel Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: Yes

DELOITTE & TOUCHE, LLP
PCAOB 34

Fund details & source

Fund ID: 805-8884619743
Reported beneficial owners: 8
Minimum commitment: $0
Form D file number: 021-500483

Form ADV 2115681 · Jul 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ARCLIGHT 3C SPV, L.P.Private Equity Fund · Last reported Jul 1, 2026$529MGross asset value

Feeder funds

ARCLIGHT 3C SPV FEEDER, L.P.

Auditor DELOITTE & TOUCHE, LLP BOSTON, Massachusetts, United States

Custodian CITIBANK, N.A. NEW YORK, New York, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

DELOITTE & TOUCHE, LLP
PCAOB 34

Fund details & source

Fund ID: 805-4743954405
Reported beneficial owners: 36
Minimum commitment: $0
Form D file number: 021-454632

Form ADV 2115681 · Jul 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ARCLIGHT INFRASTRUCTURE PARTNERS FUND VIII-A, L.P.Private Equity Fund · Last reported Jul 1, 2026$383MGross asset value

Form D fundraising filings

ARCLIGHT INFRASTRUCTURE PARTNERS FUND VIII-A, L.P.

Auditor DELOITTE & TOUCHE, LLP BOSTON, Massachusetts, United States

Custodian CITIBANK, N.A. NEW YORK, New York, United States Related to adviser: No

Marketer KB SECURITIES CO., LTD. SEOUL, Korea, South Related to adviser: No

Marketer MAGENTA CAPITAL SERVICES LTD. THE VALLEY, ANGUILLA, Anguilla Related to adviser: No

Marketer PINEGROVE CAPITAL LTD. TEL AVIV-YAFO, Israel Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: Yes

DELOITTE & TOUCHE, LLP
PCAOB 34

Fund details & source

Fund ID: 805-6234417003
Reported beneficial owners: 40
Minimum commitment: $0
Form D file number: 021-500480

Form ADV 2115681 · Jul 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

AL GCX CO-INVEST, L.P.Private Equity Fund · Last reported Jul 1, 2026$289MGross asset value

Feeder funds

AL GCX CO-INVEST FEEDER, L.P.

Auditor DELOITTE & TOUCHE, LLP BOSTON, Massachusetts, United States

Custodian CITIBANK, N.A. NEW YORK, New York, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

DELOITTE & TOUCHE, LLP
PCAOB 34

Fund details & source

Fund ID: 805-8471459810
Reported beneficial owners: 17
Minimum commitment: $0
Form D file number: 021-513525

Form ADV 2115681 · Jul 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Services & filing details

Most recent filing: Jul 1, 2026. View historical filings

Reported services

Pooled investment vehicle management

Compensation

Percentage of assets

Principal office

200 CLARENDON STREET, 55TH FLOOR
BOSTON, MA, 02116, United States

CRD 161228

Filing source

Form ADV 2115681 · Jul 1, 2026 · Items 1 & 5

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.