United States · Investor

Thayer Street Partners

Last cheque observed Jun 2026; 12 cheques on record.

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Growth equityDeploying nowNew fund $275M, Jul 2026

GrowthFinancial ServicesBusiness ServicesReal Estate Services

Deploying now
100%of best year1cheques in 12 months, 12 on record
Since the last cheque143days00hrs00min00sec
Median round$50MCheque size, as they say$30M – $100MRounds led1 of 12Sole investor3 roundsExits2 from the portfolioMostly inUnited States, 100%
Pitch Thayer Street Partners

Thayer Street Partners highlights

  1. 01

    1 cheques in the last 12 months

  2. 02

    Mostly Seed and Series C: 64% of its rounds

  3. 03

    Sole investor in 3 rounds, median undisclosed

  4. 04

    2 exits from the portfolio

What they do

Long-term capital partner for founder-led businesses. Structured capital for growth, M&A aggregation financing and customized capital solutions.From their own website
Type
Growth equity
Cheque size
$30M – $100M as they say
Stages
Growth
Sectors
Financial ServicesBusiness ServicesReal Estate Services
Based in
New York, United States
Cold pitches
Not stated

The record

Every round we can evidence, newest first12 appearances

  1. 2026

    1 round

  2. Jun
    InterchecksSeries C · US · AlleyWatch$50MLed
  3. 2015

    1 round

  4. Jul
    ShopKeepSeries D · US$60MWith 5 others
  5. 2014

    4 rounds

  6. Jul
    TransfixSeed · US$2.5MWith 10 others
  7. Apr
    ShopKeepSeries C · US$25MWith 6 others
  8. Apr
    GojiVenture · US$14MWith 3 others
  9. Feb
    AuditFileVenture · US$3.0MWith 26 others
  10. 2013

    1 round

  11. Feb
    GojiSeries C · US · bizjournals.com$53MWith 2 others
  12. 2012

    5 rounds

  13. Oct
    Prospect AcceleratorSeed · USUndisclosedSole investor
  14. May
    Endurance Lending NetworkSeed · US$1.5MWith 4 others
  15. Mar
    LifeLockGrowth · US · techcrunch.com$100MWith 8 others
  16. Jan
    ClearServeSeed · USUndisclosedSole investor
  17. Jan
    ClickPay, A Division of NovelPay, LLCUSUndisclosedSole investor

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

The team

Named by the firm itself, on a filing, its Form ADV or its company registration2 named

JSJoshua Sirow KoplewiczManaging Partner of the General Partner of the Issuer; Managing Partner of the ManageriFiling they signed
NVNicole Ventimiglia LuongoChief Financial OfficeriForm ADV

We also hold 3 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

What the register says

From the firm's own filings with the SEC, which it must file accurately by law

$1.0Bassets it managesOct 2026
Registeredinvestment adviserfull reporting to the SEC
Legal name
Thayer Street Partners Management, LLC
SEC number
CRD 170763

Funds on its Form ADV

24 private funds, $915M in gross assets · filed Mar 2024

  1. Thayer Street Partners Opportunity Fund II, L.P.Private equity80 investors$275M
  2. Thayer Street Partners Equity Opportunity Fund, L.P.Private equity47 investors$202M
  3. TS Silver II, LLCPrivate equity57 investors$79M
  4. TS Q, LLCPrivate equity4 investors$66M
  5. TS Rover I, LLCPrivate equity11 investors$58M
  6. Tseof I GP Coinvestment, L.P.Private equity17 investors$38M
  7. TS AAM, LLCPrivate equity5 investors$32M
  8. TS LIFT I, LLCPrivate equity34 investors$26M
  9. TSOF II GP Coinvestment, L.P.Private equity17 investors$24M
  10. TS LIFT II, LLCPrivate equity11 investors$24M

And 14 more on the filing.

Exits from the portfolio

Companies it backed that were later bought or listed2 in all

Endurance Lending NetworkBought by Funding CircleUndisclosedOct 2013
LifeLockListedUndisclosedOct 2012

An exit counts when it came after the firm's first round in the company. From historical deal records.

Who they invest alongside

The investors most often in the same rounds as Thayer Street Partners. A count of rooms they were both in, not a relationship either has claimed.

CanaanVC firm2rounds togetherContour Venture PartnersVC firm2rounds togetherMatt CoffinAngel2rounds togetherSpark CapitalVC firm2rounds togetherTTV CapitalVC firm2rounds togetherTribeca Venture PartnersVC firm2rounds together

Recently backed

The latest companies Thayer Street Partners put money into.

Interchecks$50M · Jun 2026

Mentioned on podcasts

Episodes that name Thayer Street Partners in their description, not their title.

Quick answers about Thayer Street Partners

What does Thayer Street Partners invest in?

Thayer Street Partners invests most often at Seed and Series C (64% of the rounds on record), in sectors such as Financial Services, Business Services and Real Estate Services.

How active is Thayer Street Partners?

12 investments on record, 1 of them in the last 12 months, and it led 1. The most recent was in Jun 2026.

What has Thayer Street Partners invested in recently?

Its most recent investments on record: Interchecks (Series C, Jun 2026).

How big are Thayer Street Partners's cheques?

The median round it joins is $50M. It says it writes cheques of $30M to $100M.

Does Thayer Street Partners lead rounds?

Sometimes: it led 1 of its 12 investments on record (8%).

Where does Thayer Street Partners invest?

Most of the companies it backs are in the United States (100%).

Is Thayer Street Partners investing now?

Yes: it is actively investing, with 1 investments in the last 12 months.

Who does Thayer Street Partners invest alongside?

Most often Canaan (2 rounds together), Contour Venture Partners (2 rounds together) and Matt Coffin (2 rounds together).

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Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it