Investors / United States / Addition
Addition
Venture capital · New York, NY, United States · North America
Addition is a venture capital firm based in New York. The available page content does not describe its investment activities in detail.
Invests inAI & Machine Learning
Your fit with Addition
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Or find every investor that fitsAddition lists 21 checked portfolio companies on its own site and is named in 26 funding rounds, 13 of them as lead. Its most frequent entry is Growth, 50% of the companies with a known first round. Its largest themes are AI & Machine Learning (24%), Healthcare & Biotech (14%) and Fintech (11%). 80% of its companies are based in United States. It invests most often alongside Lightspeed Venture Partners, SV Angel and 137 Ventures.
Counts come from funding rounds that name Addition, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Entry stage
share of companies by the stage of its first roundAddition does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 0% |
| Series A | 23% |
| Series B | 27% |
| Growth | 50% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 1 | 0 |
| '22 | 1 | 0 |
| '23 | 0 | 0 |
| '24 | 1 | 1 |
| '25 | 11 | 7 |
| '26 | 12 | 5 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 53th | 21 companies |
| Recent activity | 97th | 13 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 32th | 24% in its largest sector |
| Reach | 70th | 4 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 24% | 18% |
| Healthcare & Biotech | 14% | 15% |
| Fintech | 11% | 12% |
| Industrial & Manufacturing | 11% | 7% |
| Enterprise Software | 8% | 8% |
| E-commerce & Marketplaces | 5% | 6% |
| Crypto & Web3 | 5% | 1% |
| Cybersecurity | 5% | 4% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Lightspeed Venture Partners | 4 |
| SV Angel | 4 |
| 137 Ventures | 3 |
| Andreessen Horowitz | 3 |
| Avenir | 3 |
| BAM Elevate | 3 |
| DST Global | 3 |
| General Catalyst | 3 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers21100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Lightspeed Venture Partners
Compare Addition head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Addition| Date | Company | Stage |
|---|---|---|
| 22 Sept 2026 | Series C+ | |
| 3 Aug 2026 | Series C+ | |
| 25 Jun 2026 | Series C+ Led | |
| 11 Jun 2026 | Series C+ Led | |
| 9 Apr 2026 | Series C+ | |
| 30 Mar 2026 | Series C+ Led | |
| 16 Mar 2026 | Series C+ | |
| 11 Mar 2026 | Series A Led |
Round details for Addition
Amounts, full round histories and every co-investor in Addition's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
21 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Airwallex provides financial services and products for businesses, including multi-currency accounts, international transfers, and payment acceptance. | FintechE-commerce & Marketplaces | Jun 2026Series C+ | Funding round | |
| Alchemy provides blockchain infrastructure for developers | FintechCrypto & Web3 | Oct 2021Series C+ | Funding round | |
| Anthropic develops AI models and products, including the Claude models, and conducts AI safety research. | AI & Machine LearningEnterprise Software | Feb 2026Series C+ | Funding round | |
| Applied Intuition develops and deploys artificial intelligence for physical machines and vehicles across various industries | AI & Machine LearningIndustrial & Manufacturing | Jun 2025Series A | Funding round | |
| The company helps older Americans navigate retirement and provides personalized Medicare help from licensed advisors. | Healthcare & BiotechFintech | Apr 2025Series A · 2 rounds | Funding round | |
| Base Power provides home energy solutions, including backup power and energy savings, to homeowners in Texas and Illinois. | EducationIndustrial & Manufacturing | Apr 2025Series B · 3 rounds | Funding round | |
| CloudX provides a programmatic stack for mobile ad infrastructure | Media & EntertainmentAI & Machine Learning | Nov 2025Series A | Funding round | |
| Mar 2026Series B | Funding round | |||
| Flox provides a reproducible and governed stack for developers to work on and deploy software applications. | Developer ToolsAI & Machine Learning | Sept 2025Series B | Funding round | |
| Frore Systems develops and manufactures cooling technologies for various applications, including data centers and consumer devices. | Industrial & ManufacturingConsumer | Mar 2026Series C+ | Funding round | |
| Hello Vet provides veterinary care services for pets | Healthcare & Biotech | Dec 2025Series A | Funding round | |
| Merge connects AI agents to company data, tools, and models | AI & Machine LearningEnterprise Software | Oct 2022Series B | Funding round | |
| Modern Animal provides veterinary care services, including primary care, urgent care, and virtual care, for pets. | Healthcare & Biotech | Sept 2025Series C+ | Funding round | |
| PassiveLogic combines physics-based AI, autonomous controllers, and connected software to coordinate building systems. | Real Estate & ConstructionAI & Machine Learning | Sept 2025Series C+ | Funding round | |
| PQShield develops and provides post-quantum cryptography solutions for various industries | CybersecurityCrypto & Web3 | Jun 2024Series B | Funding round | |
| ProteanTecs provides on-chip monitoring and analytics solutions for the electronics industry | AI & Machine LearningCybersecurity | Sept 2025Series B | Funding round | |
| Render provides cloud services for hosting and managing web applications, background workers, and data pipelines. | Industrial & ManufacturingHealthcare & Biotech | Feb 2026Series C+ | Funding round | |
| Satispay allows users to pay with their smartphone, send money, save and invest. | FintechE-commerce & Marketplaces | Jun 2026Series C+ | Funding round | |
| Snorkel AI develops specialized training data and environments for frontier AI models and agents | AI & Machine LearningEnterprise Software | May 2025Series C+ · 2 rounds | Funding round | |
| Stedi provides a headless clearinghouse and revenue cycle management engine for healthcare companies | Healthcare & Biotech | Mar 2026Series C+ | Funding round |
About this data
site last read 12 Nov 2026- Site
- addition.com
- Last read
- 12 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 28 Oct 2021
- Companies checked
- 21
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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