John Keister
CEO @ MixMode
Los Angeles, United States
John Keister is a seed investor at MixMode in Los Angeles focused on Mobile and Payments. John Keister is the CEO at MixMode. John Keister attended Occidental College.
- Total investments:
- 5
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries John Keister invests in
Stages John Keister invests in
Countries John Keister invests in
Investment Focus
Industry
- Mobile 3 (60%)
- Payments 2 (40%)
- Advertising 2 (40%)
- Mobile Apps 2 (40%)
- iOS 1 (20%)
Stage
- Seed 2 (40%)
- Series A 1 (20%)
- Funding Round 1 (20%)
- Convertible Note 1 (20%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
SquareTwo
|
SquareTwo is a mobile games publisher that creates simple yet compelling games where points have real value, leveraging their own Media and Rewards platform. Their initial title verydice has a simple game loop that compels users to share, engage and redeem points for actual goods.Founded in 2016, the team experimented with retention andmonetization around simple game play dynamics. By mid 2017, they had launched their first title on iOS, verydice, and were able to generate monthly profit. The company is headquartered in San Francisco, California. | $2.3M / Seed / Aug 31, 2017 | |
WeDo
|
WeDo is like the Google Analytics of your life. By taking out the friction of tracking your life, we can offer powerful correlations that are proven to improve your overall wellness. | $825K / Convertible Note / Apr 26, 2016 | |
Prism
|
Prism is a smartphone application that enables individuals to manage their bills and personal finances. Available on iOS, Android, Windows, and Kindle platforms, the application connects its users directly with their billers to facilitate automatic notifications when new bills are found as well as to schedule payments using their credit and debitcards, and bank accounts. Prism also offers a dashboard enabling users to check and manage their account balances in order to make educated financial decisions. | $2M / Feb 18, 2015 | |
Stipple
|
Stipple is the future of the visual web where the web's biggest asset, digital images, transform into experiences that drive discovery, engagement, purchase, and loyalty in-image. Stipple’s image-based marketing technology stack detects, recognizes, and identifies the content inside images at scale and enables Advertisers and Publishers toapply interactive curated content, accurate native advertising solutions, and connects organically to commerce. Only Stipple's marketing technology offers image analytics, advertising & messaging inside images web-wide and without widgets or embed code at scale. Stipple is based in San Francisco and funded by Floodgate, Kleiner Perkins, Relevance Capital and a syndicate of prominent early-stage investors. | $5M / Series A / May 10, 2012 | |
SPARQ
|
Founded in 2010, SPARQ turns mobile users into customers by making it easier to buy, share, and consume products, services and content wherever the user is.. any device, any app, anywhere.Through its resulting in reduced friction, lower abandonment, and delighted customers. | $550K / Seed / Aug 06, 2010 |
Co-Investors
About MixMode
MixMode is a Cybersecurity platform powered by a cloud-native, self-learning AI with next generation anomaly detection and predictive capabilities. MixMode ingests and monitors large data volume environments (e.g. Cloud, Enterprise, 5G) in real time to discover zero-day threats and attacks with no signature, including those from ransomware, supplychain attacks and insider threats on Zero Trust Architecture. MixMode can be used in the cloud or on premise to deliver increased productivity and efficiency.MixMode’s platform is powered by its patented self-supervised AI, which includes contextual reasoning to explain why threats are highlighted for investigation. This AI is unique in requiring no rules, no intel feeds, and no historical training data in order to operate, avoiding the bias and blindspots that impact legacy systems. MixMode AI is capable of high speed consumption of numerous big data feeds for processing in real-time and is the only DARPA-defined Third Wave AI in Cybersecurity.
MixMode Contacts
| Name | Phone | Socials | |
|---|---|---|---|
|
John Keister
CEO
|
|||
Aaron Eppert
Vice President of Engineering
|
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Matt Shea
Head of Federal
|
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Troy Molsberry
Principal Engineer & Senior Architect
|
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1 more contact available
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FAQ
What does John Keister invest in?
John Keister invests primarily in Mobile, Payments and Advertising startups, most often at Seed and Series A stage. Most of the 5 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
When did John Keister last invest?
The most recent investment recorded for John Keister closed in Aug 2017. Shizune tracks 5 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.
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