About MRTNZ
MRTNZ is a venture capital firm founded in 2013. It is primarily based out of Paradise Valley, United States. As of Feb 2016, MRTNZ has invested in 35 companies. It primarily invests in Seed round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to Consumer and High Tech. Most recently it participated in the $***** Seed round of ReplyBuy Overall, MRTNZ portfolio has seen 6 unicorns, 3 IPOs and 6 acquisitions including key companies like Robinhood, Mercury and Kraken. A lot of funds co-invest with MRTNZ, with names like Kosinski Ventures sharing a substantial percentage of its portfolio.Key Metrics
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Seed
Portfolio Acquisitions
Portfolio Unicorns
Portfolio Soonicorns
MRTNZ's List of Top Investments
MRTNZ has a portfolio of 35 companies, including 6 unicorns. Their most notable investments include Robinhood and Mercury.Their portfolio spans across United States and Finland. They have invested in Enterprise Applications, Consumer, High Tech and 16 other sectors, across stages such as Seed stage. Here is the list of top investments by MRTNZ:
1. Robinhood
Broker-based online trading and investment platform. It offers tools for building investment strategies and tracking market trends. It facilitates trading in stocks, funds, options, and crypto assets. Expert-managed portfolios are available, providing market insights and investment adjustments. The company also provides educational resources to improve investor knowledge.
Key facts about Robinhood
- Founded Year: 2013
- Location: Menlo Park (United States)
- Annual Revenue: $1B+ as on Dec 31, 2025
- Stage: Public
- Total Funding till date: $5.73B
- Employee Count: 5,007 as on Jul 31, 2026
- Investors: HTIF, ADS Ventures and 151 Others
- Latest Funding Round: Post IPO, May 13, 2022, $*****
- Highlight: Public
2. Mercury
Provider of a comprehensive online platform offering a range of financial services. The company provides integrated banking services for businesses, offering a platform to manage financial operations.
Key facts about Mercury
- Founded Year: 2017
- Location: San Francisco (United States)
- Annual Revenue: $1M - $10M as on Dec 31, 2021
- Valuation: $*****
- Stage: Series D
- Total Funding till date: $546M
- Employee Count: 1,729 as on Jul 31, 2026
- Investors: Harmony Venture Partners, Sapphire Ventures and 80 Others
- Latest Funding Round: Series D, May 08, 2026, $*****
- Highlight: Editors' Pick
3. Kraken
Provider of a multi-asset trading platform. It is a multi-faceted company offering a range of services including cryptocurrency trading, asset management, and digital marketing solutions.
Key facts about Kraken
- Founded Year: 2011
- Location: Cheyenne (United States)
- Valuation: $*****
- Stage: Series D
- Total Funding till date: $866M
- Employee Count: 1,150 as on Jul 31, 2026
- Investors: ADS Ventures, InvestX and 128 Others
- Latest Funding Round: Series D, Jan 20, 2026, $*****
- Highlight: Editors' Pick
4. Oura
Developer of a smart ring for sleep, fitness, stress, and health. The ring collects personal health metrics and insights through biometric readings. It focuses on wellness, longevity, activity, fitness, heart health, women's health, and stress management. The device is designed for comfortable, continuous wear to provide data-driven health awareness.
Key facts about Oura
- Founded Year: 2013
- Location: Oulu (Finland)
- Annual Revenue: €100M - €500M as on Sep 30, 2024
- Valuation: $*****
- Stage: Series E
- Total Funding till date: $1.32B
- Employee Count: 1,535 as on Jul 31, 2026
- Investors: Goldman Sachs, Fidelity Investments and 71 Others
- Latest Funding Round: Series E, Jul 17, 2026, $*****
- Highlight: Editors' Pick
5. Republic
Online alternative fundraising platform to invest in startups, real estate, crypto, and video games. It provides a platform where individuals receive equity in return for their investments. Its features include investment-related services in the private markets, which include a retail investment platform, a blockchain advisory service, a private capital division, and more. It also provides fundraising tools, SEC filing, designs campaign pages, marketing, and more. For investors, it offers portfolio management tools to review financials, and valuation, and read reviews from other investors. It is available on the iOS platform.
Key facts about Republic
- Founded Year: 2009
- Location: New York City (United States)
- Stage: Series B
- Total Funding till date: $216M
- Employee Count: 664 as on Jul 31, 2026
- Investors: State Street, Draper Esprit and 194 Others
- Latest Funding Round: Conventional Debt, Nov 28, 2025, $*****
- Highlight: Editors' Pick
MRTNZ's Investments by Stage
MRTNZ has made 1 investment in Seed stage with an average round size of $2.26M.MRTNZ's Investments by Sector
MRTNZ has a diverse portfolio, with companies operating in the Consumer and Media & Entertainment. Notably, it has invested in 26 Tech companies, 20 Enterprise (B2B) companies, 19 Software companies and at least 15 companies focusing on Consumer (B2C).MRTNZ's Investments by Geography
MRTNZ has made most investments in United States (1).MRTNZ's recent investments
MRTNZ has not made any investment in 2026 so far.Here are the most recent investments by MRTNZ:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Feb 09, 2016 | United States | Seed | 1651 | [+4] |
Unicorns in MRTNZ's Portfolio
MRTNZ has 6 unicorns in its portfolio - Alpaca Securities, Oura, Angel List and others. The most recent unicorn in their portfolio is Alpaca Securities. It became a unicorn in 2026.Here is a list of unicorns in MRTNZ's portfolio:
Tracxn Score | Company | Short Description | Founded year | Sector | Location | Company Stage | First Investment/ Acquisition Details |
|---|---|---|---|---|---|---|---|
54 | Internet-first stock broker | 2015 | San Mateo | Series D | ljcjtmy | ||
79 | Developer of a smart ring for sleep, fitness, stress, and health | 2013 | Oulu | Series E | pgmsa{n | ||
75 | Provider of fund management software and services for venture capital | 2010 | San Francisco | Series B | jqvrfog | ||
83 | Provider of a comprehensive online platform offering a range of financial services | 2017 | San Francisco | Series D | yhumcth | ||
74 | Provider of business management software for small independent service providers | 2013 | San Francisco | Series E | qvyijrb |
IPOs and Publicly Listed companies in MRTNZ's Portfolio
3 of MRTNZ's portfolio companies have become public. Robinhood got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ), in Jul 2021 at marketcap of $32B and Grove got listed on the New York Stock Exchange (NYSE).Here are MRTNZ's portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Jul 29, 2021 | - | - | 2534 | |
May 14, 2021 | - | - | 7751 | |
Feb 12, 2021 | - | - | 3581 |
Acquired companies in MRTNZ's Portfolio
6 companies from MRTNZ's portfolio have been acquired. The most recent acquisition was Superhuman in Jul 2025 by Grammarly for $*****.Here are MRTNZ's portfolio companies that got acquired most recently:
Company | Acquisition Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Jul 01, 2025 | - | - | 4066 | |
Oct 07, 2022 | - | - | 5031 | |
Sep 24, 2020 | Feb 09, 2016 | Seed | 7595 | |
Jul 05, 2020 | - | - | 9419 | |
Mar 16, 2020 | - | - | 7293 |
Co-investors of MRTNZ
Over the past 10 years, 6 investors have co-invested in MRTNZ's portfolio companies. This includes funds and angels.
- Invested before MRTNZ: Arizona Commerce Authority has invested before MRTNZ.
- Top Co-investors of MRTNZ: 5 investors entered a company along with MRTNZ. These include investors like Kosinski Ventures (1 company).
Recent News related to MRTNZ
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Sweater Closes $12M Seed FundingFinSMEs•Mar 05, 2022•Sweater, Motivate Venture Capital, Akuna Capital, MRTNZ and 7 others
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Sweater closes $2.3M roundBizWest•Jul 08, 2021•Sweater, Motivate Venture Capital, MRTNZ, Bison Capital and 1 other
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ReplyBuy, instant mobile ticket with a text, raises $2M to enhance fan engagementZ Tech Beat•Oct 05, 2015•ReplyBuy, Kosinski Ventures, Sand Hill Angels, Arizona Tech Investors and 3 others
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ReplyBuy Raises $2 Million to Sell Sports Tickets by Text - Venture Capital Dispatch - WSJ
The Wall Street Journal•ReplyBuy, Kosinski Ventures, Sand Hill Angels, Arizona Tech Investors and 3 others
