Venture capital fund · 7 deals
New York, OS
Every published round Addition took part in, and every parcel of existing shares it bought off another holder. Deals we hold but haven't published yet are not counted.
Companies Addition has backed in a published round, and companies whose existing shares it bought off another holder.
| Company | What it does | First invested | Rounds | Led |
|---|---|---|---|---|
| Zeller | Integrated payments and business banking solution for SMEs | Mar 2021, Series A | 3 | 1 |
| Airwallex | Fintech payments and financial infrastructure company | 2026, Series D+ | 2 | 2 |
| Fast | 2021, Series B | 1 | 0 | |
| Frore Systems | Mar 2026, Series D+ | 1 | 0 |
Fund closes reported for Addition, as distinct from the investments it has made.
Companies Addition has backed that another company then bought. An exit for the holding, not a deal Addition did.
| Name | Role | Sources |
|---|---|---|
| Lee Fixel | Founder | Startup Daily (5 Aug 2026), Startup Daily (25 Jun 2026), TechCrunch Australia |
Stories naming Addition. Where several outlets covered the same round, they are bundled under whichever ran the fullest account.
Airwallex has closed a Series H valuing it at $16 billion, with Addition in the lead and eight other backers named; the piece also recalls its December Series G.
Semiconductor cooling firm Frore Systems landed a $143 million Series D round led by MVP Ventures, reaching unicorn status at a $1.64 billion valuation; lifetime funding now totals $340 million.
Also bangid.com
Funding roundup led by Airwallex's US$330 million Series G at a $12 billion valuation, with raises from Kasada, Hnry, All G, Bless Payments and Emanda, plus earlier rounds recalled.
Also Startup Daily
Fintech Airwallex raised a $498 million Series G led by Addition, lifting its valuation to $12 billion; Square Peg and Airtree joined, and Blackbird's $60 million May Series F backing is recalled.
Profile of Zeller's co-founder Ben Pfisterer covering the payments firm's Melbourne base, unicorn valuation, early backers, product range and growth since launching in 2021.
One-click checkout startup Fast, founded by Dominic Holland and Allison Barr Allen, is shutting down a year after a $131 million Series B backed by Stripe and Addition, amid weak revenue and fading investor appetite.
Also Startup Daily
Australian neobank Zeller closed a Series B valuing it above one billion Australian dollars, led by Headline with Hostplus participating and prior backers Square Peg, Addition and Spark Capital returning.
Also TechCrunch Australia·SmartCompany·Startup Daily·myzeller.com·Australian FinTech·Startup Daily·SmartCompany·Techboard·Startup Daily·SmartCompany·SmartCompany·Startup Daily·Forbes Australia·Fintech News Australia·Forbes Australia