About Iron Grey
Iron Grey is a venture capital firm founded in 2012. It is primarily based out of Seoul, South Korea. As of Feb 2024, Iron Grey has invested in 11 companies. It primarily invests in Series A round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to High Tech and Retail. Most recently it participated in the $***** Series D round of Ascend Elements Overall, Iron Grey portfolio has seen 2 unicorns, namely Figment and Ascend Elements. A lot of funds co-invest with Iron Grey, with names like Alumni Ventures sharing a substantial percentage of its portfolio. Iron Grey has team of 1 people including 1 partners.Key Metrics
Team Members
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Seed, Series A & 3 more
Portfolio Unicorns
Iron Grey's List of Top Investments
Iron Grey has a portfolio of 11 companies, including 2 unicorns. Their most notable investments include Figment and Replicant.Their portfolio spans across United States, Brazil, Canada and 2 more locations. They have invested in Enterprise Applications, High Tech, Retail and 11 other sectors, across stages such as Seed, Series A and 3 more. Here is the list of top investments by Iron Grey:
1. Figment
Online platform for the staking solution. The company offers staking solutions including rewards optimization, rapid API development, rewards reporting, partner integrations, governance, liquid staking, and more.
Key facts about Figment
- Founded Year: 2018
- Location: Toronto (Canada)
- Valuation: $*****
- Stage: Series C
- Total Funding till date: $165M
- Employee Count: 185 as on Mar 31, 2026
- Investors: Thoma Bravo, Fidelity Investments and 56 Others
- Latest Funding Round: Series C, Oct 06, 2025, $*****
- Highlight: Editors' Pick
2. Replicant
Developer of AI-powered platform automating customer service through voice and chat. The platform offers conversation automation and conversation intelligence. It provides integrations, safety, and security features. The platform supports use cases such as appointments, scheduling, and billing. It also supports industries including insurance, healthcare, and retail.
Key facts about Replicant
- Founded Year: 2017
- Location: San Francisco (United States)
- Valuation: $*****
- Stage: Series B
- Total Funding till date: $112M
- Employee Count: 176 as on Mar 31, 2026
- Investors: Omega Venture Partners, Bloomberg Beta and 8 Others
- Latest Funding Round: Series B, Apr 25, 2022, $*****
- Highlight: Editors' Pick
3. Allonnia
Provider of solutions for upcycling plastic waste. It uses advanced biology and technology to recycle and convert upcycle waste. It is focused on four key sectors of mining, industry, energy, and plastics, including segments of PFAS separation and concentration, PFAS sensing, rare earth elements - REE, oil sands process water - OSPW, and Plastics.
Key facts about Allonnia
- Founded Year: 2019
- Location: Boston (United States)
- Stage: Series A
- Total Funding till date: $111M
- Employee Count: 57 as on Mar 31, 2026
- Investors: Viking Global Investors, General Atlantic and 12 Others
- Latest Funding Round: Series A, Dec 10, 2025, $*****
- Highlight: Editors' Pick
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4. Homebound
Provider of tech-first construction contractors. The company offers home customization solutions, track progress, and connect with the team via an online portal. The company also offers finance, architectural designing, site planning, and progress tracking solutions.
Key facts about Homebound
- Founded Year: 2018
- Location: Santa Rosa (United States)
- Valuation: $*****
- Stage: Series C
- Total Funding till date: $148M
- Employee Count: 217 as on Mar 31, 2026
- Investors: Goldman Sachs, Flucas Ventures and 17 Others
- Latest Funding Round: Conventional Debt, Feb 15, 2022, $*****
- Highlight: Editors' Pick
Juvena Therapeutics is engaged in the development of protein-based therapeutics that promote tissue generation in the elderly. The company has developed a discovery platform for screening restored muscle function which can be developed to other tissue types. The company has developed a protein cocktail which can improve the ability of aged muscle to heal and regenerate and also to look youthful and active.
Key facts about Juvena Therapeutics
- Founded Year: 2017
- Location: San Mateo (United States)
- Stage: Series B
- Total Funding till date: $86.3M
- Employee Count: 44 as on Feb 28, 2026
- Investors: Mubadala, Felicis Ventures and 23 Others
- Latest Funding Round: Series B, Jun 27, 2025, $*****
- Highlight: Editors' Pick
Iron Grey's Year-on-Year Investment Trends
Iron Grey has invested in 11 companies over the last 6 years, with an average of 2 new investments annually in the last 5 years. Its most recent first time investment was in Ascend Elements.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 0 | 0 | 0 |
2025 | 0 | 0 | 0 |
2024 | 1 | 0 | 1 |
2023 | 1 | 0 | 1 |
2022 | 6 | 0 | 6 |
2021 | 2 | 0 | 2 |
2020 | 1 | 0 | 1 |
Iron Grey's Investments by Stage
Iron Grey has made 3 investments in Seed stage with an average round size of $5.03M, 3 investments in Series A stage with an average round size of $27.9M, 2 investments in Series B stage with an average round size of $51M, 2 investments in Series C stage with an average round size of $92.5M and 1 investment in Series D stage with an average round size of $162M.Stage of entry | No. of Investments |
|---|---|
Seed | 3 |
Series A | 3 |
Series B | 2 |
Series C | 2 |
Series D | 1 |
Note: We have considered here, only first round of investments
Iron Grey's Investments by Sector
Iron Grey has a diverse portfolio, with companies operating in the Enterprise Applications, High Tech, Sustainability Tech, Environment Tech and Life Sciences. Notably, it has invested in 11 Enterprise (B2B) companies, 11 Tech companies, 5 Software companies and at least 1 company focusing on AI-Native.Sector | No. of Investments |
|---|---|
Enterprise Applications | 5 |
High Tech | 3 |
Sustainability Tech | 3 |
Environment Tech | 2 |
Life Sciences | 2 |
Others | 11 |
Note: We have considered here, only first round of investments
Iron Grey's Investments by Geography
Iron Grey has made most investments in United States (7), followed by Brazil where it has made 1 investment.Country | No. of Investments |
|---|---|
United States | 7 |
Brazil | 1 |
Canada | 1 |
Indonesia | 1 |
Singapore | 1 |
Note: We have considered here, only first round of investments
Iron Grey's recent investments
Iron Grey has not made any investment in 2026 so far.Here are the most recent investments by Iron Grey:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Feb 20, 2024 | United States | Series D | 6124 | [+1] | |
Mar 08, 2023 | United States | Series A | 1803 | [+7] | |
Dec 22, 2022 | Brazil | Seed | 9981 | [+3] | |
Nov 08, 2022 | United States | Series A | 9348 | [+12] | |
Jul 14, 2022 | United States | Series B | 2104 | [+4] |
Unicorns in Iron Grey's Portfolio
Iron Grey has 2 unicorns in its portfolio - Ascend Elements and Figment. The most recent unicorn in their portfolio is Ascend Elements. It became a unicorn in 2023.Here is a list of unicorns in Iron Grey's portfolio:
Tracxn Score | Company | Short Description | Founded year | Sector | Location | Company Stage | First Investment/ Acquisition Details |
|---|---|---|---|---|---|---|---|
60 | Manufacturer of engineered materials from recycled lithium-ion batteries and battery scrap | 2015 | Westborough | Series D | cqofhpq | ||
70 | Online platform for the staking solution | 2018 | Toronto | Series C | ksnycdl |
Team profile of Iron Grey
Iron Grey has a team of 1 member. Iron Grey's team does not sit on the board of any company as of now.Co-investors of Iron Grey
Over the past 6 years, 179 investors have co-invested in Iron Grey's portfolio companies. This includes funds and angels.
- Invested before Iron Grey: Fifth Wall, Y Combinator and 77 others have invested in rounds before Iron Grey. There are 2 companies where Fifth Wall has invested before Iron Grey and 2 companies where Y Combinator has invested before Iron Grey.
- Top Co-investors of Iron Grey: 83 investors entered a company along with Iron Grey. These include investors like Alumni Ventures (2 companies).
- Invested after Iron Grey: A total of 17 investors have invested in Iron Grey's portfolio after their investments. Top Investors include C1 (1 company), Pivotal Capital (1 company) and Lilly (1 company).
