Data / Investment advisers / New York / Blackstone Isg-Ii Advisors L.L.C.
Blackstone Isg-Ii Advisors L.L.C., New York, NY: $8 billion AUM, SEC registered investment adviser
Updated November 7, 2026. Source: the SEC's Form ADV data files for investment advisers.
Blackstone Isg-Ii Advisors L.L.C. is an SEC registered investment adviser with its main office in New York, New York and reports $8 billion in regulatory assets under management in its Form ADV filed March 30, 2026. Its clients include pooled investment vehicles. It is paid through a percentage of assets under management and performance based fees. It advises 6 private funds.
The request: Watch Blackstone Isg-Ii Advisors L.L.C. (CRD number 289550): each new Form ADV amendment, with AUM, clients and private funds. $10 of work on sign-up, no card.
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- Registration
- SEC registered investment adviser
- CRD number
- 289550
- SEC file number
- 801-111695
- SEC status
- Approved, effective September 18, 2017
- Main office
- 345 Park Avenue, New York, NY 10154
- Phone
- (212) 583-5000
- Regulatory AUM
- $8,006,994,436 in the Form ADV filed March 30, 2026
- Discretionary AUM
- $8,006,994,436
- Accounts
- 8
- Employees
- 114, of which 44 give investment advice
- Form of organization
- Limited Liability Company
- Paid through
- a percentage of assets under management, performance based fees
- Private funds
- 6: 4 private equity funds, 1 hedge fund, 1 securitized asset fund
- Gross assets of private funds
- $6,942,880,987
- Other offices
- 4
- Form ADV Item 11 disclosures
- None reported
- Latest Form ADV filing
- March 30, 2026
- SEC record
- Investment Adviser Public Disclosure
Clients
Client types the adviser reports in Form ADV item 5.D, with the AUM it attributes to each.
| Client type | Clients | AUM |
|---|---|---|
| Pooled investment vehicles | 8 | $8.01 billion |
AUM in the SEC's monthly files
Each change in the AUM the adviser reported across the monthly SEC files held here, with the first file that shows the new value.
| First in the file of | AUM | Form ADV filed |
|---|---|---|
| April 1, 2026 | $8.01 billion | March 30, 2026 |
| December 1, 2025 | $14.47 billion | September 18, 2025 |
Other advisers in New York
| Adviser | City | AUM | Private funds | Source |
|---|---|---|---|---|
| Samsung Asset Management (New York), Inc. | New York | $8.17 billion | Not listed | adviserinfo.sec.gov |
| Starboard Value LP | New York | $8.15 billion | 2 | adviserinfo.sec.gov |
| Rhone Group L.L.C. | New York | $8.15 billion | 11 | adviserinfo.sec.gov |
| Stripes, LLC | New York | $8.14 billion | 52 | adviserinfo.sec.gov |
| Lightyear Capital LLC | New York | $8.08 billion | 28 | adviserinfo.sec.gov |
| Cion Ares Management, LLC | New York | $8.00 billion | Not listed | adviserinfo.sec.gov |
| Guggenheim Investments | New York | $7.97 billion | Not listed | adviserinfo.sec.gov |
| Orion Resource Partners (USA), LP | New York | $7.91 billion | 14 | adviserinfo.sec.gov |
Also on SpecStream
- Investment advisers in New York, NY
- Investment advisers in New York
- Advisers with $1 billion to $10 billion in AUM
- Advisers serving pooled investment vehicles
- Advisers that manage private funds
- Blackstone Isg-Ii Advisors L.L.C. on the SEC's adviser search
Public data published by the US Securities and Exchange Commission (US government work). Advisers report these values themselves in Form ADV, and neither the SEC nor the states approve or guarantee them. AUM is regulatory assets under management as the adviser reported it in Form ADV item 5.F, which can differ from the AUM a firm quotes elsewhere. Exempt reporting advisers do not report AUM. Office address, phone and website are the adviser's main office as filed; a firm that files its main office as a private residence shows no street address or phone. An Item 11 disclosure is a reported event, not a finding about the firm today. Details for each firm are on the SEC's Investment Adviser Public Disclosure site. This page uses SEC data and is not endorsed or certified by the SEC. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.