Thayer Street Partners Management, Llc
- Regulatory AUM
- $1.0B
- Discretionary
- $844M
- Clients
- 24
- Avg AUM / client
- $42.7M
- Accounts
- 24
- Employees
- 8
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Mar 30, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 24 | $1.0B | 100.0% |
Private funds (24)
View all →Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $915M combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Thayer Street Partners Opportunity Fund Ii, Lp master | Private Equity Fund | Delaware | $275M | 80 |
| Thayer Street Partners Equity Opportunity Fund, Lp master | Private Equity Fund | Delaware | $202M | 47 |
| Ts Silver Ii, Llc | Private Equity Fund | Delaware | $79.4M | 57 |
| Ts Q, Llc | Private Equity Fund | Delaware | $66.0M | 4 |
| Ts Rover I, Llc | Private Equity Fund | Delaware | $58.4M | 11 |
| Tseof I Gp Coinvestment, Lp feeder | Private Equity Fund | Delaware | $37.7M | 17 |
| Ts Aam, Llc | Private Equity Fund | Delaware | $31.9M | 5 |
| Ts Lift I, Llc | Private Equity Fund | Delaware | $26.4M | 34 |
| Tsof Ii Gp Coinvestment, Lp feeder | Private Equity Fund | Delaware | $23.7M | 17 |
| Ts Lift Ii, Llc | Private Equity Fund | Delaware | $23.6M | 11 |
| Ts Falcon I, Llc | Private Equity Fund | Delaware | $23.6M | 38 |
| Ts Vo Sma I, Llc feeder | Private Equity Fund | Delaware | $22.2M | 3 |
| Ts Trial I, Llc | Private Equity Fund | Delaware | $12.0M | 20 |
| Ts Silver I, Llc | Private Equity Fund | Delaware | $10.1M | 13 |
| Thayer Street Cu Asset Co I, Llc | Private Equity Fund | Delaware | $9.5M | 41 |
People (2)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Koplewicz, Joshua, Sirow | Managing Partner | Dec 2012 (14y) | ≈ 56.25% – 100% via Thayer Street Partners Holdings, Llc | |
| Luongo, Nicole, Ventimiglia | Chief Financial Officer | Dec 2020 (6y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Thayer Street Partners Holdings, Llc | Member | Dec 2012 | A | 75% or more |
| Thayer Street Partners Holdings, Llc | Member | Dec 2012 | B | ≈ 56.25% – 100% via Thayer Street Partners Holdings, Llc |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Koplewicz, Joshua, Sirow: 75% – 100% of Thayer Street Partners Holdings, Llc × 75% – 100% direct ≈ 56.25% – 100% of the firm
- Thayer Street Partners Holdings, Llc: 75% – 100% of Thayer Street Partners Holdings, Llc × 75% – 100% direct ≈ 56.25% – 100% of the firm
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Private funds (24, $915M gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Thayer Street Partners Opportunity Fund Ii, Lp | Private Equity Fund | $275M | $2.5M | 80 |
| Thayer Street Partners Equity Opportunity Fund, Lp | Private Equity Fund | $202M | $2.5M | 47 |
| Ts Silver Ii, Llc | Private Equity Fund | $79.4M | $0 | 57 |
| Ts Q, Llc | Private Equity Fund | $66.0M | $0 | 4 |
| Ts Rover I, Llc | Private Equity Fund | $58.4M | $0 | 11 |
| Tseof I Gp Coinvestment, Lp | Private Equity Fund | $37.7M | $150K | 17 |
| Ts Aam, Llc | Private Equity Fund | $31.9M | $0 | 5 |
| Ts Lift I, Llc | Private Equity Fund | $26.4M | $0 | 34 |
| Tsof Ii Gp Coinvestment, Lp | Private Equity Fund | $23.7M | $150K | 17 |
| Ts Lift Ii, Llc | Private Equity Fund | $23.6M | $0 | 11 |
| Ts Falcon I, Llc | Private Equity Fund | $23.6M | $0 | 38 |
| Ts Vo Sma I, Llc | Private Equity Fund | $22.2M | $0 | 3 |
| Ts Trial I, Llc | Private Equity Fund | $12.0M | $0 | 20 |
| Ts Silver I, Llc | Private Equity Fund | $10.1M | $0 | 13 |
| Thayer Street Cu Asset Co I, Llc | Private Equity Fund | $9.5M | $500K | 41 |
| Thayer Street Sk C, Llc | Private Equity Fund | $3.2M | $500K | 12 |
| Thayer Street Cu C Iv, Llc | Private Equity Fund | $2.5M | $200K | 13 |
| Ts Transport I, Llc | Private Equity Fund | $2.2M | $500K | 4 |
| Ts Ihc I, Llc | Private Equity Fund | $1.4M | $0 | 2 |
| Novak Wv Prop Co 2020, Llc | Private Equity Fund | $1.2M | $0 | 6 |
| Ts Steam I, Llc | Private Equity Fund | $1.1M | $0 | 4 |
| Thayer Street Sk Com I, Llc | Private Equity Fund | $1.1M | $0 | 2 |
| Ts Optimus I, Llc | Private Equity Fund | $756K | $100K | 8 |
| Ts Foxpoint I, Llc | Private Equity Fund | $0 | $500K | 7 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/30/2026 | 5.68 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Performance-based fees
- • Other fees
- • MONITORING FEES
Services
- • Portfolio management for pooled investment vehicles
Custody
Firm reports having custody of client funds or securities (Item 9.A).
No custodian data reported or mined yet.
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 30, 2026.
View current Form ADV (SEC/IAPD) ↗