Investors / United States / Seaplane Ventures
Seaplane Ventures
Venture capital · Austin, TX, United States · North America
Seaplane Ventures is an early-stage venture capital firm based in Austin, Texas. It makes concentrated investments in seed-stage US startups, often providing first institutional capital, investing between rounds, or co-investing alongside other leads.
Invests inAI & Machine LearningFintech
In its own wordsnetwork effectssaasrecurring revenueearly stageb2b software
Your fit with Seaplane Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsSeaplane Ventures lists 15 checked portfolio companies on its own site. Its largest themes are AI & Machine Learning (23%), Fintech (15%) and Enterprise Software (12%). 100% of its companies are based in United States. It invests most often alongside Y Combinator, Eight Capital and Multimodal Ventures.
No funding round on record names Seaplane Ventures yet, so the figures come from its portfolio page.
Round figures show recent activity, not Seaplane Ventures' whole history. Rounds on record name 0 companies; its own site lists 15. 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.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 23% | 18% |
| Fintech | 15% | 12% |
| Enterprise Software | 12% | 8% |
| Cybersecurity | 8% | 4% |
| E-commerce & Marketplaces | 8% | 6% |
| Space & Defense | 8% | 3% |
| Healthcare & Biotech | 8% | 15% |
| Industrial & Manufacturing | 8% | 7% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Y Combinator | 4 |
| Eight Capital | 3 |
| Multimodal Ventures | 2 |
| Techstars | 2 |
| Transpose Platform | 2 |
| 01A | 1 |
| Activant Capital | 1 |
| Antigravity Capital | 1 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 39th | 15 companies |
| Recent activity | 46th | 0 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 | 28th | 23% in its largest sector |
| Reach | 19th | 1 country |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers15100%
- 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 togetherCompare Seaplane Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Portfolio
15 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Atrios offers tools and perks for businesses, including exclusive deals with various vendors. | FintechSpace & Defense | Portfolio page | ||
| Better Auth provides an authentication framework for applications | CybersecurityEnterprise Software | Portfolio page | ||
| Portfolio page | ||||
| Hyperspell connects a company's tools and data sources, synthesizing them into a single source of truth that can be accessed by any agent. | AI & Machine LearningEnterprise Software | Portfolio page | ||
| The company provides infrastructure for advancing intelligence through expert human data, real-world training environments, and contextual evaluations. | AI & Machine LearningRobotics & Hardware | Portfolio page | ||
| Packsmith handles fulfillment, inventory, and shipping for businesses. | E-commerce & MarketplacesFintech | Portfolio page | ||
| Rainwalk Technology provides pet insurance with broad coverage and hassle-free reimbursements. | Healthcare & BiotechFintech | Portfolio page | ||
| Rocketable acquires profitable SaaS products and infuses them with AI to improve their operations and user experience. | AI & Machine LearningSpace & Defense | Portfolio page | ||
| Ruck develops wearable AI hardware for jobsites to capture and organize information and tasks | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| The company provides AI document processing software for operations teams to automate data extraction and workflow tasks. | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Trata hosts conversations that drive public markets, centered on anonymous hedge fund debate and investment research. | Fintech | Portfolio page | ||
| Unifize provides an AI platform for regulated, cross-functional work | Healthcare & BiotechIndustrial & Manufacturing | Portfolio page | ||
| Upkid connects early childhood education programs with qualified teachers for full-time or flexible jobs. | EducationHuman Resources | Portfolio page | ||
| Veria Labs provides an autonomous pentester that maps a company's entire attack surface, proves real exploits, and drafts the fix. | Cybersecurity | Portfolio page | ||
| XENA Intelligence provides a platform to track and improve the visibility of products across various AI tools | E-commerce & MarketplacesAI & Machine Learning | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- seaplaneventures.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Companies checked
- 15
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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