Investors / United States / Valor Siren Ventures
Valor Siren Ventures
Venture capital · Chicago, IL, United States · North America
Valor Siren Ventures is an investment arm of Valor, a private investment firm that invests in technology and technology-enabled companies. The firm works directly with portfolio company management teams on operational improvements such as supply chain, data science, and human capital.
Invests inAI & Machine Learning
In its own wordstechnologytechnology-enabledbiosciencestransportationfoodhealth and wellness
Your fit with Valor Siren Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsValor Siren Ventures lists 198 checked portfolio companies on its own site and is named in 69 funding rounds, 24 of them as lead. Its most frequent entry is Growth, 37% of the companies with a known first round. Its largest themes are AI & Machine Learning (26%), Fintech (12%) and Healthcare & Biotech (12%). 91% of its companies are based in United States. It invests most often alongside Founders Fund, Andreessen Horowitz and 8VC.
Counts come from funding rounds that name Valor Siren Ventures, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Valor Siren Ventures' whole history. Rounds on record name 55 companies; its own site lists 198. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 14% |
| Series A | 31% |
| Series B | 18% |
| Growth | 37% |
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 | 1 |
| '22 | 4 | 1 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 24 | 7 |
| '26 | 40 | 15 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 99th | 196 companies |
| Recent activity | 100th | 42 rounds in 12 months |
| Early stage | 56th | 14% of entries at pre-seed or seed |
| Evidence | 83th | 13% of companies confirmed by a round |
| Sector focus | 37th | 26% in its largest sector |
| Reach | 93th | 9 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 26% | 18% |
| Fintech | 12% | 12% |
| Healthcare & Biotech | 12% | 15% |
| Cybersecurity | 9% | 4% |
| Industrial & Manufacturing | 7% | 7% |
| Enterprise Software | 6% | 8% |
| Education | 4% | 7% |
| Consumer | 3% | 3% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Founders Fund | 18 |
| Andreessen Horowitz | 16 |
| 8VC | 14 |
| Y Combinator | 14 |
| Lightspeed Venture Partners | 13 |
| Sequoia Capital | 12 |
| Abstract | 10 |
| Capitoria | 10 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers19498%
- No longer answers00%
- Points to another company42%
- 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 togetherCompare Valor Siren Ventures 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 Valor Siren Ventures| Date | Company | Stage |
|---|---|---|
| 12 Nov 2026 | Series A Led | |
| 5 Nov 2026 | Series C+ | |
| 26 Oct 2026 | Series C+ | |
| 7 Oct 2026 | Series C+ | |
| 30 Sept 2026 | Series B Led | |
| 30 Sept 2026 | Series C+ Led | |
| 29 Sept 2026 | Series C+ Led | |
| 17 Sept 2026 | Series A Led |
Round details for Valor Siren Ventures
Amounts, full round histories and every co-investor in Valor Siren Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
198 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| The company issues physically backed crypto ETPs that track the performance of individual cryptoassets or a basket of underlying cryptoassets | FintechCrypto & Web3 | Portfolio page | ||
| Aalo Atomics builds mass-manufactured nuclear power plants designed to power data centers and other applications | EducationIndustrial & Manufacturing | Aug 2025Series B | Page + round | |
| Addepar provides a platform for managing financial data and operations with AI and data analytics for financial professionals and institutions. | FintechAI & Machine Learning | May 2025Series C+ | Page + round | |
| Aescape offers adaptive body therapy sessions using physical AI and robotics for effective tension release | Healthcare & Biotech | Mar 2025Round | Page + round | |
| Aexlab creates technologies for virtual worlds, including gaming and simulation. | GamingEnterprise Software | Portfolio page | ||
| AgentSync provides insurance compliance software for carriers and agencies | FintechHealthcare & Biotech | Portfolio page | ||
| Alta provides an AI-powered platform for go-to-market teams to automate tasks such as finding prospects, qualifying leads, and booking meetings | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Alto Neuroscience develops biology-driven medicines for neuropsychiatric conditions | Healthcare & Biotech | Portfolio page | ||
| Amboss provides a medical knowledge platform for doctors and students | Healthcare & Biotech | Portfolio page | ||
| AMP designs, builds, and operates advanced facilities to process single-stream recycling and municipal solid waste using artificial intelligence. | Industrial & ManufacturingEnterprise Software | Portfolio page | ||
| AndrenaM builds networks of intelligent acoustic buoys that detect, track, and classify underwater objects and marine life. | AI & Machine LearningAI & Machine Learning | Jul 2026Series A | Page + round | |
| Anduril Industries specializes in advanced autonomous systems for defense and commercial mission sets. | AI & Machine LearningAI & Machine Learning | Dec 2022Series C+ | Page + round | |
| Portfolio page | ||||
| Ashby provides all-in-one recruiting software with AI for ambitious teams | Human ResourcesAI & Machine Learning | Portfolio page | ||
| Astera Labs develops and provides connectivity products for rack-scale AI systems. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Athena is a law firm that provides legal services for mergers and acquisitions, venture capital financing, and commercial real estate. | Legal & ComplianceFintech | Portfolio page | ||
| Atomic Machines develops and manufactures micro-machines using a new AI-native manufacturing stack called the Matter Compiler | Industrial & ManufacturingAI & Machine Learning | Oct 2026Series C+ | Page + round | |
| Atom Power develops and manufactures solid-state circuit breakers and power distribution systems | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| 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 | Page + round | |
| The company operates an online platform for shopping men's and women's fashion, art, and lifestyle products. | E-commerce & MarketplacesLegal & Compliance | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- valorep.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 23 Mar 2021
- Companies checked
- 198
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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