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DiamondStream Partners

1625 Federal Ave. E, Seattle, WA, 98102, United States

Overview

Thematic fund investing in travel and aviation transformation.

Founded

2003

Deals · 12mo

1

Links

WebsiteLinkedInX (Twitter)

Stage focus

Series A
Series B

Geographic focus

Switzerland
United States

Sector focus

Aerospace
Air Transportation
Travel

Investment portfolio

6rounds
NAMEDATESIZE
Ampaire
Aug 2026Led
$19 MSeries B
SwissDrones
May 2024Participated
$10 MSeries B
Wingtra
Mar 2023Participated
$22 MSeries B
Volantio
Oct 2022Led
$6 MSeries A
VerdeGo Aero
Jul 2022Participated
$12 MSeries A
Elroy Air
Aug 2021Participated
$40 MSeries A
Ampaire
Aug 2026Led
$19 MSeries B
SwissDrones
May 2024Participated
$10 MSeries B
Wingtra
Mar 2023Participated
$22 MSeries B
Volantio
Oct 2022Led
$6 MSeries A
VerdeGo Aero
Jul 2022Participated
$12 MSeries A
Elroy Air
Aug 2021Participated
$40 MSeries A
6
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Insights

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Deal Distribution

DiamondStream Partners: 6 funding rounds are recorded in the selected participation categories.All available history.
DiamondStream Partners: 6 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Series A12
Series B12

Monthly Deal Activity

DiamondStream Partners: 6 deals are recorded across 63 months.All available history.
DiamondStream Partners: 6 deals are recorded across 63 months. All available history
MonthDeals
Aug '211
Sep '210
Oct '210
Nov '210
Dec '210
Jan '220
Feb '220
Mar '220
Apr '220
May '220
Jun '220
Jul '221
Aug '220
Sep '220
Oct '221
Nov '220
Dec '220
Jan '230
Feb '230
Mar '231
Apr '230
May '230
Jun '230
Jul '230
Aug '230
Sep '230
Oct '230
Nov '230
Dec '230
Jan '240
Feb '240
Mar '240
Apr '240
May '241
Jun '240
Jul '240
Aug '240
Sep '240
Oct '240
Nov '240
Dec '240
Jan '250
Feb '250
Mar '250
Apr '250
May '250
Jun '250
Jul '250
Aug '250
Sep '250
Oct '250
Nov '250
Dec '250
Jan '260
Feb '260
Mar '260
Apr '260
May '260
Jun '260
Jul '260
Aug '261
Sep '260
Oct '260

Sector Breakdown

DiamondStream Partners: Hardware & Robotics is the largest displayed sector by deal count (3 deals).All available history.

A deal can appear in multiple sectors, so sector totals may overlap. Capital represents disclosed total round sizes, not fund cheque sizes.

DiamondStream Partners: Hardware & Robotics is the largest displayed sector by deal count (3 deals). All available history
SectorDeals
Hardware & Robotics3
Manufacturing3
Space & Frontier Tech3
Transportation & Logistics3
Travel & Hospitality1
Clean Energy & Sustainability1
Professional Services1

Deal Size Distribution

DiamondStream Partners: 6 rounds have a disclosed size in the displayed size bands.All available history.

Undisclosed round sizes are excluded. Capital represents total round sizes, not fund cheque sizes.

DiamondStream Partners: 6 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M0
$5M-$10M1
$10M-$25M4
$25M-$50M1
$50M-$100M0
$100M-$250M0
$250M-$500M0
$500M-$1B0
$1B+0

Deals By Geography

DiamondStream Partners: United States has the largest recorded deal count among the displayed regions (4 deals).All available history.

Top 2 of 2 regions; European countries are grouped as Europe.

DiamondStream Partners: United States has the largest recorded deal count among the displayed regions (4 deals). All available history
RegionDeals
United States4
Europe2
DiamondStream Partners: 20 co-investors are shown, with Ingleside Investors sharing 2 recorded deals.All available history.

Co-Investors

Bubble size = shared deals

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Shows up to 20 co-investors ranked by shared deals. Deals may be shared with multiple funds, so rows overlap. Capital is total round size, not fund cheque size.

DiamondStream Partners: 20 co-investors are shown, with Ingleside Investors sharing 2 recorded deals. All available history
Co-investorShared deals
Ingleside Investors2
ACE & Company1
Alaska Airlines1
Alaska Star Ventures1
Amadeus1
Autodesk Foundation1
Avfuel1
Catapult Ventures1
Chevron Technology Ventures1
Climate Capital1
EIC Fund1
Elemental Impact1
EquityPitcher Ventures1
ExitFund1
Gaingels1
IAG Capital Partners1
IAGi Ventures1
JetBlue Technology Ventures1
LACI1
Lockheed Martin1

Investment Strategy

DiamondStream Partners: Led accounts for 33% and participating for 67% of round participation.All available history.
DiamondStream Partners: Led accounts for 33% and participating for 67% of round participation. All available history
CategoryDeals (count)Share (%)
Led233%
Participating467%
DiamondStream Partners: Single-lead accounts for 100% and co-led for 0% of lead dynamics.All available history.
DiamondStream Partners: Single-lead accounts for 100% and co-led for 0% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead2100%
Co-led00%

Team

Brian Flynn

Co-Founder & Managing Director

David Spurlock

Managing Director

William Dean Donovan

Co-Founder & Managing Director