# Washington Harbour Partners Lp: portfolio, investments and team

> Washington Harbour Partners Lp is a private equity based in United States. 51 investments on record, 28 in the last 12 months, latest Oct 2026.

Source: https://millionrounds.com/fund/washington-harbour-partners-lp (Millionrounds; every figure on the page links to its filing or article)

United States · [Investor](https://millionrounds.com/investors)

# Washington Harbour Partners Lp

Last cheque observed Oct 2026; 51 cheques on record.

Email

Deploying now Private equity

Series A Series B Banking Tech For Good Social

Follow Washington Harbour Partners Lp and see its new cheques in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Ffund%2Fwashington-harbour-partners-lp)

Deploying now

**90%** of best year **28** **cheques in 12 months**, 51 on record

Since the last cheque **7** days **00** hrs **00** min **00** sec

Median round **$60M** Rounds led **9 of 51** Sole investor **3 rounds** Mostly in **United States, 95%**

Pitch Washington Harbour Partners Lp

## Washington Harbour Partners Lp highlights

- 01 28 cheques in the last 12 months
- 02 Mostly Series B and Venture: 50% of its rounds
- 03 Sole investor in 3 rounds, median $39M

## What they do

> A sector specialized private investment firm partnering with mission-critical, non-cyclical businesses across cybersecurity, government technology and enterprise technology. From their own website

- **Type:** Private equity (from a list, unverified)
- **Cheque size:** Not stated
- **Stages:** Series A Series B
- **Sectors:** Banking Tech For Good Social
- **Based in:** Arlington, United States
- **Cold pitches:** Not accepted

## The record

Every round we can evidence, newest first **51 appearances**

- **2026** 25 rounds
- **Oct** **[Apex](https://millionrounds.com/company/apex)** US · Google News search **$500M** *Led*
- **Oct** **[Kapta Space](https://millionrounds.com/company/kapta-space)** Series A · US · PR Newswire: financing agreements **$24M** *Led*
- **Sept** **[Stoke Space Technologies](https://millionrounds.com/company/stoke-space-technologies)** Series E · US · MaC Venture Capital **$1.0B** With 10 others
- **Sept** **[Rune Technologies](https://millionrounds.com/company/rune-technologies)** Grant · US **$4.1M** With 5 others
- **Aug** **[Smack Technologies](https://millionrounds.com/company/smack-technologies)** Series B · US · Ventureburn **$61M** With 6 others
- **Aug** **[Hadrian](https://millionrounds.com/company/hadrian)** Growth · US · Crunchbase News **$1.4B** *Led*
- **Jul** **[Picogrid](https://millionrounds.com/company/picogrid)** Grant · US **$114K** With 4 others
- **Jun** **[Computomic](https://millionrounds.com/company/computomic)** Growth · US · Washington Harbour Partners Lp **Undisclosed** *Led*
- **Jun** **[NinjaOne](https://millionrounds.com/company/ninjaone)** Series C · US · Crunchbase News **$400M** With 10 others
- **May** **[Scout Space](https://millionrounds.com/company/scout-space)** Series A · US · Ventureburn **$18M** *Led*
- **May** **[RED 6](https://millionrounds.com/company/red-6)** Venture · US **Undisclosed** With 3 others
- **May** **[Anello Photonics](https://millionrounds.com/company/anello-photonics)** Series B · US **$25M** With 2 others
- **Apr** **[Firestorm Labs](https://millionrounds.com/company/firestorm-labs)** Series B · US · TechCrunch **$82M** *Led*
- **Apr** **[Turion Space](https://millionrounds.com/company/turion-space)** Series B · US · Ventureburn **$75M** *Led*
- **Apr** **[Vulcan Elements](https://millionrounds.com/company/vulcan-elements)** Venture · US **$431M** With 2 others
- **Apr** **[Citra Space](https://millionrounds.com/company/citra-space)** Series A · US **$15M** With 2 others
- **Apr** **[Turion Space](https://millionrounds.com/company/turion-space)** Series B · US **$20M** With 3 others
- **Mar** **[Smack Technologies](https://millionrounds.com/company/smack-technologies)** Series A · US · Ventureburn **$32M** With 7 others
- **Mar** **[Striveworks](https://millionrounds.com/company/striveworks)** Series B · US **$18M** Sole investor
- **Mar** **[Worldscape](https://millionrounds.com/company/worldscape)** Seed · US **$6.0M** With 1 other
- **Feb** **[Solsten](https://millionrounds.com/company/solsten)** Venture · DE **Undisclosed** With 3 others
- **Jan** **[VulcanForms](https://millionrounds.com/company/vulcanforms)** Series D · US · Ventureburn **$220M** With 6 others
- **Jan** **[Standard Nuclear](https://millionrounds.com/company/standard-nuclear)** Series A · US · TechCrunch **$140M** With 8 others
- **Jan** **[Northwood Space](https://millionrounds.com/company/northwood-space)** Series B · US · Alpine Space Ventures **$100M** *Led*
- **Jan** **[Array Labs](https://millionrounds.com/company/array-labs)** Series A · US **$20M** With 4 others
- **2025** 17 rounds
- **Dec** **[Hadrian](https://millionrounds.com/company/hadrian)** Growth · NL **$131M** With 4 others
- **Nov** **[Quindar](https://millionrounds.com/company/quindar)** Series A · US **$18M** With 4 others
- **Nov** **[Vulcan Elements](https://millionrounds.com/company/vulcan-elements)** Debt · US **$620M** With 2 others
- **Oct** **[Stoke Space](https://millionrounds.com/company/stoke-space)** Growth · US · TechCrunch **$510M** With 5 others
- **Oct** **[Stoke Space](https://millionrounds.com/company/stoke-space)** Series D · US **$860M** With 4 others
- **Oct** **[Epirus](https://millionrounds.com/company/epirus)** Venture · US **Undisclosed** With 4 others
- **Oct** **[Saildrone](https://millionrounds.com/company/saildrone)** Venture · US **$50M** With 3 others
- **Oct** **[Conifers.Ai](https://millionrounds.com/company/conifers-ai)** Venture · US **Undisclosed** With 2 others
- **Sept** **[RegScale](https://millionrounds.com/company/regscale)** Series B · US **$30M** With 2 others
- **Aug** **[Shield AI](https://millionrounds.com/company/shield-ai)** Venture · US **Undisclosed** With 3 others
- **Aug** **[Medallion](https://millionrounds.com/company/medallion)** Series C · US **$43M** With 6 others
- **Jul** **[Rune Technologies](https://millionrounds.com/company/rune-technologies)** Series A · US · TechCrunch **$24M** With 7 others
- **May** **[Saildrone](https://millionrounds.com/company/saildrone)** Series C · US **$60M** With 3 others
- **Apr** **[Apex](https://millionrounds.com/company/apex)** Series C · US · Crunchbase News **$200M** With 4 others
- **Mar** **[Epirus](https://millionrounds.com/company/epirus)** Series D · US · Crunchbase News **$250M** *Led*

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 registration **2 named**

MC **Mina Charles Faltas** Limited Partner and Chief Investment Officer i Form ADV

SE **Stephen Edward Guffey** Chief Compliance Officer and Chief Financial Officer i Form ADV

We also hold **17** 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

**$4.7B** assets it manages Oct 2026

**Registered** investment adviser full reporting to the SEC

- **Legal name:** Washington Harbour Partners LP
- **SEC number:** CRD 309915

Funds on its Form ADV

**38** private funds, **$855M** in gross assets · filed Aug 2024

Private equity **37** Hedge **1**

- Washington Harbour Federal IT Holdings, LLC *Private equity* 47 investors $125M
- Washington Harbour AI, LLC *Private equity* 2 investors $121M
- Washington Harbour Cyber Holdings, LLC *Private equity* 58 investors $115M
- Washington Harbour Digital Mission Blocker, INC *Private equity* 53 investors $71M
- Washington Harbour Capital Opportunities Master Fund, L.P. *Hedge* 34 investors $64M
- Washington Harbour Esports, LLC *Private equity* 15 investors $37M
- Washington Harbour Metaverse, LLC *Private equity* 48 investors $36M
- Washington Harbour Metaverse VIII, LLC *Private equity* 1 investor $30M
- Washington Harbour Metaverse VI, LLC *Private equity* 7 investors $25M
- Washington Harbour Metaverse II, LLC *Private equity* 45 investors $20M

And 28 more on the filing.

## The cheque

Series A Series B

Median round joined **$60M** the round, not its cheque Alone, median **$39M**

Led 9 of 51 rounds **18%**

- **Sole investor:** 3 rounds
- **Last cheque:** Oct 2026

Rounds by stage said on their site

- Series B said *12*
- Venture *10*
- Series A said *9*
- Growth *5*
- Series C *5*
- Series D *3*

Cheques by month Led Joined

Nov 2023 Oct 2026

Often in the room with

- [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) 10
- [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) 8
- [Gaingels](https://millionrounds.com/fund/gaingels) 6
- [Point72 Ventures](https://millionrounds.com/fund/point72-ventures) 6
- [Y Combinator](https://millionrounds.com/fund/y-combinator) 6
- [Lux Capital](https://millionrounds.com/fund/lux-capital) 4

**Pitching Washington Harbour Partners Lp?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque.

Add to your CRM *→*

## Who they invest alongside

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

[**Andreessen Horowitz** VC firm **10** rounds together](https://millionrounds.com/fund/andreessen-horowitz)[**Alumni Ventures** VC firm **8** rounds together](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund)[**Gaingels** Private equity **6** rounds together](https://millionrounds.com/fund/gaingels)[**Point72 Ventures** VC firm **6** rounds together](https://millionrounds.com/fund/point72-ventures)[**Y Combinator** Accelerator **6** rounds together](https://millionrounds.com/fund/y-combinator)[**Lux Capital** VC firm **4** rounds together](https://millionrounds.com/fund/lux-capital)[**SYN Ventures** VC firm **4** rounds together](https://millionrounds.com/fund/syn-ventures)[**StepStone Group** Fund of funds **4** rounds together](https://millionrounds.com/fund/stepstone-group)[**8VC** VC firm **3** rounds together](https://millionrounds.com/fund/8vc)[**Costanoa Ventures** VC firm **3** rounds together](https://millionrounds.com/fund/costanoa-ventures)[**Founders Fund** VC firm **3** rounds together](https://millionrounds.com/fund/founders-fund)[**Geodesic Capital** VC firm **3** rounds together](https://millionrounds.com/fund/geodesic-capital)

## Recently backed

The latest companies Washington Harbour Partners Lp put money into.

[**Apex** $500M · Oct 2026](https://millionrounds.com/company/apex)[**Kapta Space** $24M · Oct 2026](https://millionrounds.com/company/kapta-space)[**Stoke Space Technologies** $1.0B · Sept 2026](https://millionrounds.com/company/stoke-space-technologies)[**Rune Technologies** $4.1M · Sept 2026](https://millionrounds.com/company/rune-technologies)[**Hadrian** $1.4B · Aug 2026](https://millionrounds.com/company/hadrian)[**Picogrid** $114K · Jul 2026](https://millionrounds.com/company/picogrid)

## Quick answers about Washington Harbour Partners Lp

### What does Washington Harbour Partners Lp invest in?

Washington Harbour Partners Lp invests most often at Series B and Venture (50% of the rounds on record), in sectors such as Banking, Tech For Good and Social.

### How active is Washington Harbour Partners Lp?

51 investments on record, 28 of them in the last 12 months, and it led 9. The most recent was in Oct 2026.

### What has Washington Harbour Partners Lp invested in recently?

Its most recent investments on record: Apex (Undisclosed round, Oct 2026), Kapta Space (Series A, Oct 2026) and Stoke Space Technologies (Series E, Sept 2026).

### How big are Washington Harbour Partners Lp's cheques?

The median round it joins is $60M.

### Does Washington Harbour Partners Lp lead rounds?

Yes: it led 9 of its 51 investments on record (18%).

### Where does Washington Harbour Partners Lp invest?

Most of the companies it backs are in the United States (95%).

### Is Washington Harbour Partners Lp investing now?

Yes: it is actively investing, with 28 investments in the last 12 months.

### Who does Washington Harbour Partners Lp invest alongside?

Most often Andreessen Horowitz (10 rounds together), Alumni Ventures (8 rounds together) and Gaingels (6 rounds together).

## Raising now?

Find the investors who back rounds like yours, and keep every conversation on one fundraising board.

Find similar investorsOpen your CRM

Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=washington-harbour-partners-lp) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=washington-harbour-partners-lp)