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The Venture Codex

Main Sequence Ventures

5/13 Garden Street, Eveleigh, NSW, 2015, Australia

Overview

Invests in founders leveraging deep tech and frontier technologies.

Founded

2017

Deals ยท 12mo

18

Links

WebsiteLinkedInX (Twitter)

Stage focus

Seed
Series A
Series B

Geographic focus

Australia
United States

Sector focus

Business Development
Consulting
Finance
Financial Services
...

Investment portfolio

94rounds
NAMEDATESIZE
Universal Quantum
Oct 2026Participated
$100 MSeries A
Kinoxis Therapeutics
Sep 2026Led
$9 MOther Equity
Metacognition
Sep 2026Led
$10 MSeed
Facet Amtech
Aug 2026Led
$2 MSeed
Zabidou
Aug 2026Participated
$4 MSeed
Emesent
Jul 2026Participated
$17 MOther Equity
Arkeus
May 2026Participated
$18 MSeries A
DeteQt
Apr 2026Led
$4 MSeed
Cauldron Ferm
Mar 2026Led
$13 MSeries A
Advanced Navigation
Mar 2026Participated
$110 MSeries C
MGA Thermal
Mar 2026Participated
$17 MOther Equity
Breaker
Feb 2026Participated
$6 MSeed
Universal Quantum
Oct 2026Participated
$100 MSeries A
Kinoxis Therapeutics
Sep 2026Led
$9 MOther Equity
Metacognition
Sep 2026Led
$10 MSeed
Facet Amtech
Aug 2026Led
$2 MSeed
Zabidou
Aug 2026Participated
$4 MSeed
Emesent
Jul 2026Participated
$17 MOther Equity
Arkeus
May 2026Participated
$18 MSeries A
DeteQt
Apr 2026Led
$4 MSeed
Cauldron Ferm
Mar 2026Led
$13 MSeries A
Advanced Navigation
Mar 2026Participated
$110 MSeries C
MGA Thermal
Mar 2026Participated
$17 MOther Equity
Breaker
Feb 2026Participated
$6 MSeed
94
Items
...
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Insights

Time horizon

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Deal Distribution

Main Sequence Ventures: 94 funding rounds are recorded in the selected participation categories.All available history.
Main Sequence Ventures: 94 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Seed116
Series A717
Series B315
Series C+06
Other Equity1415

Monthly Deal Activity

Main Sequence Ventures: 94 deals are recorded across 107 months.All available history.
Main Sequence Ventures: 94 deals are recorded across 107 months. All available history
MonthDeals
Dec '171
Jan '180
Feb '180
Mar '181
Apr '181
May '181
Jun '180
Jul '180
Aug '180
Sep '181
Oct '181
Nov '181
Dec '180
Jan '191
Feb '190
Mar '190
Apr '190
May '191
Jun '190
Jul '192
Aug '190
Sep '192
Oct '190
Nov '192
Dec '190
Jan '200
Feb '201
Mar '200
Apr '201
May '200
Jun '201
Jul '200
Aug '200
Sep '200
Oct '201
Nov '201
Dec '202
Jan '210
Feb '210
Mar '212
Apr '210
May '210
Jun '212
Jul '210
Aug '215
Sep '211
Oct '212
Nov '211
Dec '211
Jan '220
Feb '221
Mar '221
Apr '220
May '222
Jun '221
Jul '220
Aug '221
Sep '221
Oct '222
Nov '223
Dec '221
Jan '231
Feb '232
Mar '232
Apr '230
May '232
Jun '232
Jul '230
Aug '231
Sep '230
Oct '232
Nov '231
Dec '231
Jan '240
Feb '241
Mar '242
Apr '242
May '240
Jun '242
Jul '241
Aug '240
Sep '240
Oct '241
Nov '240
Dec '240
Jan '250
Feb '250
Mar '252
Apr '250
May '250
Jun '250
Jul '250
Aug '250
Sep '252
Oct '251
Nov '252
Dec '251
Jan '261
Feb '262
Mar '263
Apr '261
May '261
Jun '260
Jul '261
Aug '262
Sep '262
Oct '261

Sector Breakdown

Main Sequence Ventures: Space & Frontier Tech is the largest displayed sector by deal count (28 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.

Main Sequence Ventures: Space & Frontier Tech is the largest displayed sector by deal count (28 deals). All available history
SectorDeals
Space & Frontier Tech28
Hardware & Robotics27
Networks, Cloud & Communication23
AI & Machine Learning21
Clean Energy & Sustainability20
Health & Life Sciences16
Food & Agriculture16
Data, Analytics & IT15
Enterprise Software12
Manufacturing12
Consumer & Lifestyle8
Transportation & Logistics7
Cybersecurity & Privacy5
AR/VR2
Fintech2
Professional Services2
Education & Workforce1
Developer Tools1

Deal Size Distribution

Main Sequence Ventures: 94 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.

Main Sequence Ventures: 94 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M23
$5M-$10M14
$10M-$25M29
$25M-$50M14
$50M-$100M10
$100M-$250M4
$250M-$500M0
$500M-$1B0
$1B+0

Deals By Geography

Main Sequence Ventures: Australia has the largest recorded deal count among the displayed regions (83 deals).All available history.

Top 4 of 4 regions; European countries are grouped as Europe.

Main Sequence Ventures: Australia has the largest recorded deal count among the displayed regions (83 deals). All available history
RegionDeals
Australia83
United States8
Europe2
Philippines1
Main Sequence Ventures: 20 co-investors are shown, with Horizons Ventures sharing 13 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.

Main Sequence Ventures: 20 co-investors are shown, with Horizons Ventures sharing 13 recorded deals. All available history
Co-investorShared deals
Horizons Ventures13
Blackbird Ventures11
Hostplus8
Clean Energy Finance Corporation6
Data Collective6
Breakthrough Victoria5
In-Q-Tel5
Queensland Investment Corporation5
AirTree Ventures4
Ajax Strategies4
Cargill4
Melt Ventures4
NGS Super4
Our Innovation Fund4
Salus Ventures4
The National Reconstruction Fund Corporation4
Uniseed4
CSIRO3
Galvanize Climate Solutions3
Grok Ventures3

Investment Strategy

Main Sequence Ventures: Led accounts for 37% and participating for 63% of round participation.All available history.
Main Sequence Ventures: Led accounts for 37% and participating for 63% of round participation. All available history
CategoryDeals (count)Share (%)
Led3537%
Participating5963%
Main Sequence Ventures: Single-lead accounts for 60% and co-led for 40% of lead dynamics.All available history.
Main Sequence Ventures: Single-lead accounts for 60% and co-led for 40% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead2160%
Co-led1440%

Team

Alejandra Romero
Alezeia Brown

Investment Manager

Bill Bartee

Partner

Elaine Stead
Emerald Scofield

Investment Manager

Jun Qu

Deep tech VC

Martin Duursma

Partner

Mike Nicholls

Partner

Mike Zimmerman

Partner

Phil Morle

Partner