Josh Constine
Principal investor and Head Of Content @ SignalFire
San Francisco, United States
Josh Constine is a Principal investor, Head Of content, and Venture Partner at SignalFire. He invests in early stage startups across verticals with a focus on social apps, visual communication, remote work, entertainment & media, and tech's transformation of new sectors. Constine also creates content for SignalFire, drawing on datainsights from the fund's predictive recruiting engine Beacon and invested advisor network of 75 top tech leaders. SignalFire is currently investing from its $200 million seed fund and $300 million breakout fund, and has backed startups like Uber, Grammarly, Ro, Alchemy, and ClassDojo.Constine currently writes a weekly newsletter called Moving Product at https://constine.substack.com/ where he discusses big ideas facing the startup industry, the most exciting new tech products, and interviews top industry talent about the most important recent launches.Previously, Constine was the Editor-At-Large for TechCrunch where he wrote over 3500 blog posts about social tech giants like Facebook and Snapchat as well as early stage startups across verticals. His work was cited on the floors of the Senate and House Of Representatives, and led to the shut down of Facebook's Onavo market surveillance app. Constine was formerly the Lead Writer of Inside Facebook through its acquisition by WebMediaBrands, covering everything about the social network.Constine graduated from Stanford University in 2009 with a Master's degree in Cybersociology, examining the influence of technology on social interaction. He researched the impact of privacy controls on the socialization of children, meme popularity cycles, and what influences the click through rate of links posted to Twitter. Constine also received a Bachelor of Arts degree with honors from Stanford University in 2007, with a concentration in Social Psychology & Interpersonal Processes.Josh Constine is an experienced public speaker, and has moderated over 190 on-stage interviews in 18 countries with leaders including Facebook CEO Mark Zuckerberg, Instagram's founders, whistleblower Edward Snowden (via on-stage video conference), and U.S. Senator Cory Booker. He also delivers keynotes on how to pitch startups, press strategy for tech companies, and how to turn your passion into your profession. He is available to moderate panels and fireside chats, provide keynotes, and judge hackathon and pitch competitions. You can contact him at Joshsc [at] gmail .comConstine has been quoted by The Wall Street Journal, CNN Money, The Atlantic, BBC World Magazine, Slate, and more, plus has been featured on television on Good Morning, America, The Today Show, China Central Television, and Fox News. Constine was ranked as the #1 most cited tech journalist on prestigious news aggregator Techmeme from 2016 to 2020.
- Total investments:
- 7
- Last investment:
- Lead investor:
- 57%
Last updated:
For AI agents: llms.txt
Industries Josh Constine invests in
Stages Josh Constine invests in
Countries Josh Constine invests in
Contacts
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Investment Focus
Industry
- Software 4 (57%)
- Internet 2 (29%)
- Web Design 2 (29%)
- Gift 1 (14%)
- Gaming 1 (14%)
Stage
- Pre-Seed 5 (71%)
- Seed 1 (14%)
- Series A 1 (14%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
DetectifAI
|
DetectifAI is a deeptech cybersecurity company tackling the rising threat of misinformation, fraud, and digital manipulation. uses advanced AI to detect deepfakes and AI-generated audio with forensic precision. and empower media houses, cybersecurity firms, BFSI, and law enforcement agencies to verify content authenticity and safeguard against AIfraud- ensuring digital trust. | Seed / Aug 25, 2026 | |
Honeyjar
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Honeyjar is the AI platform for PR teams, agencies, and marketing and communications leaders. Designed by comms professionals, Honeyjar expertly runs the entire workflow while bringing news, social, and all the critical data for comms into one intelligent, centralized workspace. | $2M / Pre-Seed / Dec 04, 2025 | |
Notary Everyday
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Saas automating notarizations for real estate transactions. | $300K / Pre-Seed / Jul 14, 2025 | |
Storycraft
|
Storycraft is a mobile video game creation platform with AI-powered maps, characters, and gameplay. | $2M / Pre-Seed / Apr 01, 2023 | |
Spore
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Spore develops platform for creators designed to improve their web experience. | $1M / Pre-Seed / Jun 24, 2021 | |
Truffle
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Truffle develops an infrastructure creator's platform to enhance the web experience for developers and creators. The platform focuses on providing tools and resources that streamline the development process, enabling users to build, deploy, and manage web applications more efficiently.By offering a suite of features tailored to the needs ofdevelopers, Truffle aims to simplify complex tasks and improve productivity. The platform supports various aspects of web development, including collaboration, version control, and deployment, making it easier for creators to focus on their projects.Truffle's commitment to innovation and user experience positions it as a valuable resource for developers looking to optimize their workflows and enhance their online presence. Through its platform, Truffle seeks to empower creators by providing them with the tools they need to succeed in the digital landscape. | $1M / Pre-Seed / Jun 24, 2021 | |
Goody
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Goody makes sending gifts as easy as sending a text. No address needed. It accepts payments only when the gift is received. | $13.1M / Series A / Apr 01, 2021 |
Co-Investors
About SignalFire
SignalFire is a venture capital firm that invests in seed-stage companies and breakout companies. The company focuses on providing data-driven insights and tailored advisory programs across various sectors, including health, fintech, and cybersecurity.
SignalFire Contacts
| Name | Phone | Socials | |
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Chris Scoggins
Partner
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Elaine Zelby
Venture Partner
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Jim Stoneham
Partner
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Josh Constine
Principal investor and Head Of Content
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Alex Garden
Venture Partner
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FAQ
What does Josh Constine invest in?
Josh Constine invests primarily in Software, Internet and Web Design startups, most often at Pre-Seed and Seed stage. Most of the 7 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Josh Constine?
Public channels for Josh Constine include LinkedIn, X (Twitter) and the website linked on this profile. 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 Josh Constine last invest?
The most recent investment recorded for Josh Constine closed in Aug 2026. Shizune tracks 7 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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