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Triangle Tweener Fund

4506 S. Miami Blvd., Suite 150, Durham, NC, 27703, United States

Overview

Index of early-stage private company investments in high-tech startups.

Founded

2022

Deals ยท 12mo

5

Links

WebsiteLinkedInX (Twitter)

Stage focus

Seed
Series A

Geographic focus

United States

Sector focus

Business Development
Finance
Financial Services
Venture Capital

Investment portfolio

22rounds
NAMEDATESIZE
Higharc
Jun 2026Participated
$95 MSeries C
Skillmaker
Jun 2026Participated
$5 MSeed
Keebler Health
Apr 2026Participated
$16 MSeries A
Opine
Dec 2025Participated
$5 MSeed
Scale Social AI
Nov 2025Participated
$1 MSeed
Warrant
Apr 2025Participated
$0.72 MSeed
Keebler Health
Feb 2025Participated
$6 MSeed
Allstacks
Aug 2024Participated
$10 MSeries A
Wander
Aug 2024Participated
$1 MSeed
Opine
Jan 2024Participated
$2 MSeed
Karma Wallet
Jan 2024Led
$2 MOther Equity
PerfectScale
Oct 2023Participated
$7 MSeed
Higharc
Jun 2026Participated
$95 MSeries C
Skillmaker
Jun 2026Participated
$5 MSeed
Keebler Health
Apr 2026Participated
$16 MSeries A
Opine
Dec 2025Participated
$5 MSeed
Scale Social AI
Nov 2025Participated
$1 MSeed
Warrant
Apr 2025Participated
$0.72 MSeed
Keebler Health
Feb 2025Participated
$6 MSeed
Allstacks
Aug 2024Participated
$10 MSeries A
Wander
Aug 2024Participated
$1 MSeed
Opine
Jan 2024Participated
$2 MSeed
Karma Wallet
Jan 2024Led
$2 MOther Equity
PerfectScale
Oct 2023Participated
$7 MSeed
22
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Insights

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Deal Distribution

Triangle Tweener Fund: 22 funding rounds are recorded in the selected participation categories.All available history.
Triangle Tweener Fund: 22 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Seed011
Series A06
Series C+02
Other Equity21

Monthly Deal Activity

Triangle Tweener Fund: 22 deals are recorded across 54 months.All available history.
Triangle Tweener Fund: 22 deals are recorded across 54 months. All available history
MonthDeals
May '221
Jun '221
Jul '220
Aug '220
Sep '222
Oct '220
Nov '220
Dec '221
Jan '230
Feb '230
Mar '231
Apr '231
May '231
Jun '231
Jul '230
Aug '231
Sep '230
Oct '231
Nov '230
Dec '230
Jan '242
Feb '240
Mar '240
Apr '240
May '240
Jun '240
Jul '240
Aug '242
Sep '240
Oct '240
Nov '240
Dec '240
Jan '250
Feb '251
Mar '250
Apr '251
May '250
Jun '250
Jul '250
Aug '250
Sep '250
Oct '250
Nov '251
Dec '251
Jan '260
Feb '260
Mar '260
Apr '261
May '260
Jun '262
Jul '260
Aug '260
Sep '260
Oct '260

Sector Breakdown

Triangle Tweener Fund: Enterprise Software is the largest displayed sector by deal count (12 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.

Triangle Tweener Fund: Enterprise Software is the largest displayed sector by deal count (12 deals). All available history
SectorDeals
Enterprise Software12
AI & Machine Learning11
Networks, Cloud & Communication6
Health & Life Sciences6
Marketing & Advertising5
Fintech5
Data, Analytics & IT4
Professional Services3
Hardware & Robotics2
Education & Workforce1
Clean Energy & Sustainability1
Real Estate & Construction1
Consumer & Lifestyle1
Developer Tools1

Deal Size Distribution

Triangle Tweener Fund: 22 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.

Triangle Tweener Fund: 22 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M11
$5M-$10M6
$10M-$25M4
$25M-$50M0
$50M-$100M1
$100M-$250M0
$250M-$500M0
$500M-$1B0
$1B+0

Deals By Geography

Triangle Tweener Fund: United States has the largest recorded deal count among the displayed regions (22 deals).All available history.

Top 1 of 1 regions; European countries are grouped as Europe.

Triangle Tweener Fund: United States has the largest recorded deal count among the displayed regions (22 deals). All available history
RegionDeals
United States22
Triangle Tweener Fund: 20 co-investors are shown, with IDEA Fund Partners sharing 4 recorded deals.All available history.

Co-Investors

Bubble size = shared deals

Click a bubble to open that fund in a new tab.

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.

Triangle Tweener Fund: 20 co-investors are shown, with IDEA Fund Partners sharing 4 recorded deals. All available history
Co-investorShared deals
IDEA Fund Partners4
S3 Ventures4
Primordial Ventures3
Companyon Ventures2
CreativeCo Capital2
Everywhere Ventures2
Freestyle Capital2
Front Porch Ventures2
Hustle Fund2
Knoll Ventures2
MBX Capital2
New Stack Ventures2
Propel Venture Partners2
Studio VC2
TDF Ventures2
Underdog Labs2
Acadia Woods1
AI Operator's Fund1
Alerion Ventures1
Alumni Ventures1

Investment Strategy

Triangle Tweener Fund: Led accounts for 9% and participating for 91% of round participation.All available history.
Triangle Tweener Fund: Led accounts for 9% and participating for 91% of round participation. All available history
CategoryDeals (count)Share (%)
Led29%
Participating2091%
Triangle Tweener Fund: Single-lead accounts for 50% and co-led for 50% of lead dynamics.All available history.
Triangle Tweener Fund: Single-lead accounts for 50% and co-led for 50% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead150%
Co-led150%

Team

David Sonntag

Founding Funder/Investor/LP

Greg Vassie

Founding Funder

Jan Davis

Angel Investor

Mark Easley

Investor and LP

Robbie Allen

General Partner

Scot Wingo

General Partner

Stephen Coakley

Limited Partner