Investment adviser · CRD 314277

HF SCALE PARTNERS LLC

ALTRA VENTURE PARTNERS LLC

NEW YORK, NY, United States · Form ADV filed Apr 1, 2026

Adviser-level assets, account counts and staffing figures are unavailable in this filing. View the reported fund disclosures below →

Private funds & service providers

27 detailed fund records

Largest reported gross asset value first; unreported values last. Gross asset value is fund-level disclosure, distinct from adviser AUM and Form D fundraising. Master and feeder funds may overlap.

OAI FUND I, A SERIES OF ALTRA VENTURE PARTNERS II, LPVenture Capital Fund$17.6MGross asset value

Form D fundraising filings

View filings for the issuer linked by this fund’s reported Form D file numbers.

Fund administrator BELLTOWER FUND GROUP, LTD. SEATTLE, Washington, United States Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →
Provider details
Annual audit
No
Prime brokers
No
Custodians
No
Administrator other than the adviser
Yes
External marketing
No
Fund details & source
Fund ID
805-1196703994
Reported beneficial owners
296
Minimum commitment
$5K
Form D file number
021-560245

Form ADV 2050703 · Apr 1, 2026 · Schedule D 7.B.(1)

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

ALTRA VENTURE OPPORTUNITY FUND I, LPVenture Capital Fund$16.3MGross asset value

Form D fundraising filings

View filings for the issuer linked by this fund’s reported Form D file numbers.

Fund administrator BELLTOWER FUND GROUP, LTD. SEATTLE, Washington, United States Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →
Provider details
Annual audit
No
Prime brokers
No
Custodians
No
Administrator other than the adviser
Yes
External marketing
No
Fund details & source
Fund ID
805-3921685278
Reported beneficial owners
88
Minimum commitment
$25K
Form D file number
021-496420

Form ADV 2050703 · Apr 1, 2026 · Schedule D 7.B.(1)

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

ANTH FUND I, A SERIES OF ALTRA VENTURE PARTNERS II, LPVenture Capital Fund$5.96MGross asset value

Form D fundraising filings

View filings for the issuer linked by this fund’s reported Form D file numbers.

Fund administrator BELLTOWER FUND GROUP, LTD. SEATTLE, Washington, United States Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →
Provider details
Annual audit
No
Prime brokers
No
Custodians
No
Administrator other than the adviser
Yes
External marketing
No
Fund details & source
Fund ID
805-3574257772
Reported beneficial owners
159
Minimum commitment
$5K
Form D file number
021-507991

Form ADV 2050703 · Apr 1, 2026 · Schedule D 7.B.(1)

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

ANTH FUND III, A SERIES OF ALTRA VENTURE PARTNERS II, LPVenture Capital Fund$5.18MGross asset value

Form D fundraising filings

View filings for the issuer linked by this fund’s reported Form D file numbers.

Fund administrator BELLTOWER FUND GROUP, LTD. SEATTLE, Washington, United States Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →
Provider details
Annual audit
No
Prime brokers
No
Custodians
No
Administrator other than the adviser
Yes
External marketing
No
Fund details & source
Fund ID
805-3527507575
Reported beneficial owners
172
Minimum commitment
$5K
Form D file number
021-553292

Form ADV 2050703 · Apr 1, 2026 · Schedule D 7.B.(1)

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

ANTH FUND II JAN 2025, A SERIES OF CGF2021 LLCVenture Capital Fund$4.35MGross asset value

Form D fundraising filings

View filings for the issuer linked by this fund’s reported Form D file numbers.

Fund administrator BELLTOWER FUND GROUP, LTD. SEATTLE, Washington, United States Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →
Provider details
Annual audit
No
Prime brokers
No
Custodians
No
Administrator other than the adviser
Yes
External marketing
No
Fund details & source
Fund ID
805-2956901617
Reported beneficial owners
2
Minimum commitment
$5K
Form D file number
021-538634

Form ADV 2050703 · Apr 1, 2026 · Schedule D 7.B.(1)

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

ANTH FUND IV, A SERIES OF ALTRA FRONTIERTECH INVESTMENTS I, LPVenture Capital Fund$3.93MGross asset value

Form D fundraising filings

View filings for the issuer linked by this fund’s reported Form D file numbers.

Fund administrator BELLTOWER FUND GROUP, LTD. SEATTLE, Washington, United States Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →
Provider details
Annual audit
No
Prime brokers
No
Custodians
No
Administrator other than the adviser
Yes
External marketing
No
Fund details & source
Fund ID
805-8972050524
Reported beneficial owners
122
Minimum commitment
$5K
Form D file number
021-553292

Form ADV 2050703 · Apr 1, 2026 · Schedule D 7.B.(1)

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

DA FUND I, A SERIES OF ALTRA VENTURE PARTNERS II, LPVenture Capital Fund$3.58MGross asset value

Form D fundraising filings

View filings for the issuer linked by this fund’s reported Form D file numbers.

Fund administrator BELLTOWER FUND GROUP, LTD. SEATTLE, Washington, United States Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →
Provider details
Annual audit
No
Prime brokers
No
Custodians
No
Administrator other than the adviser
Yes
External marketing
No
Fund details & source
Fund ID
805-1077584330
Reported beneficial owners
74
Minimum commitment
$5K
Form D file number
021-507964

Form ADV 2050703 · Apr 1, 2026 · Schedule D 7.B.(1)

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

Services & filing details

Showing values from the selected filing. Latest observed filing does not establish current registration status.

Filing history · 3 annual filings

Adviser-level financial and staffing figures are unavailable in these annual filings. Select a filing to view its reported funds and providers.

Reported services

Not reported in these imported fields

Compensation

Not reported in these imported fields

Principal office

459 COLUMBUS AVENUE, SUITE #502
NEW YORK, NY, 10024, United States

CRD 314277

Filing source

Form ADV 2050703 · Apr 1, 2026 · Items 1 & 5

Reported by ALTRA VENTURE PARTNERS LLC (CRD 314277).

Annual Updating Amendment ERA Report · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.