# Robby Walker

> Robby Walker is a seed investor in San Francisco backing Software and Travel. See 4 investments, round sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Location: San Francisco, United States
- Total investments: 4
- Last investment: Sep 2015
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/robbywalker/
- X (Twitter): https://twitter.com/rwalker

Robby Walker is a seed investor in San Francisco focused on Software and Travel. Robby Walker is Senior Director, Siri ExperienceSenior at Apple. He attended Arizona State University.

## Contacts

5 contacts available for Robby Walker: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/robby-walker?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $85k–$3M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 50% |
| Travel | 1 | 25% |
| Internet | 1 | 25% |
| Recruiting | 1 | 25% |
| Mobile Apps | 1 | 25% |

8 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 50% |
| Angel | 1 | 25% |
| Funding Round | 1 | 25% |

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Triplebyte | Triplebyte is a recruiting and technical screening platform for tech companies. They believe the current technical hiring process doesn't do enough to help engineers show their strengths. They're dedicated to building a better process. You can read more about their views on hiring in their manifesto. | $3M | Seed | Sep 28, 2015 | http://triplebyte.com |
| Adioso | Adioso is a better search and booking app for leisure travel.It allows users to:* search without constraints on destinations & dates* follow destinations or search terms to receive deals, trip recommendations, and other content to help them plan and book their trip.Its key benefits are:* Travelers find it much easier to choosethe very best travel options available* Airlines & suppliers can focus messages and offers at highly qualified customers.Founded in Australia in 2008 by Fenn Bailey and Tom Howard, Adioso was in the Winter ‘09 class of Y Combinator, and has received seed funding from Silicon Valley and travel industry investors.As of March 2012, Adioso has a team of eight engineers and designers in Australia and the US, and is moving rapidly towards the launch of some major new product features and global airline coverage. | $85K | Seed | Mar 01, 2009 | http://adioso.com |
| AppJet | Y Combinator funded AppJet is an online programming tool for building simple web apps. Founded by former MIT students, AppJet intends to simplify the process of writing web applications. The applications are programmed on a web based text editor in the simple but powerful JavaScript programming language. JavaScript is used on both the server andclient side. They've included several bundles of code libraries for databases and more importantly interfacing with the Facebook API. In order to efficiently host users' applications, AppJet has developed their own application virtualization system. The system allocates processor time to active applications and cuts off greedy ones after running an alloted number of compiled lines of code to prevent abuse.AppJet as a dev platform seems no longer to be active. There are some legacy downloads available, however. | $700K | Angel | Aug 01, 2007 | http://appjet.com |

3 of 4 investments shown.

## Co-investors
- [Caffeinated Capital](https://shizune.co/investors/profile/caffeinated-capital) — VC Fund, 2 deals together
- [Felicis](https://shizune.co/investors/profile/felicis-ventures) — VC Fund, 2 deals together
- [Fort Ventures](https://shizune.co/investors/profile/fort-ventures) — VC Fund, 2 deals together
- [Imagine K12](https://shizune.co/investors/profile/imagine-k12) — VC Fund, 2 deals together
- [Initialized Capital](https://shizune.co/investors/profile/initialized-capital) — VC Fund, 2 deals together
- [SV Angel](https://shizune.co/investors/profile/sv-angel) — VC Fund, 2 deals together

## Similar investors

### Similar industry
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [FJ Labs](https://shizune.co/investors/profile/fj-labs) — VC Fund
- [Global Founders Capital](https://shizune.co/investors/profile/global-founders-capital) — VC Fund

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

### Similar country
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## Featured in investor lists
- [Recruiting Angel Investors in United States](https://shizune.co/investors/recruiting-angel-investors-united-states)
- [Recruiting Angel Investors](https://shizune.co/investors/recruiting-angel-investors)

## FAQ

### What does Robby Walker invest in?

Robby Walker invests primarily in Software, Travel and Internet startups, most often at Seed and Angel stage. Most of the 4 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What round sizes does Robby Walker invest in?

Robby Walker typically joins rounds of $85k–$3M at Seed. These are whole funding-round sizes, not Robby Walker's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Robby Walker took part in.

### How do I contact Robby Walker?

Public channels for Robby Walker include LinkedIn and X (Twitter). For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Robby Walker last invest?

The most recent investment recorded for Robby Walker closed in Sep 2015. Shizune tracks 4 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co