Series
The first AI social network connecting users via iMessage with an AI friend for intros based on interests.
Website: https://www.series.so/
Cover Block
| Field | Value |
|---|---|
| Name | Series |
| Tagline | The first AI social network connecting users via iMessage with an AI friend for intros based on interests |
| Headquarters | New Haven, CT |
| Founded | 2025 |
| Stage | Pre-Seed |
| Business Model | B2C |
| Industry | Media / Entertainment |
| Technology | AI / Machine Learning |
| Geography | North America |
| Growth Profile | Venture Scale |
| Founding Team | Co-Founders (2) |
| Funding Label | Pre-seed |
| Total Disclosed | ~$3.1M |
Links
- Website: https://www.series.so/
- Careers: https://jobs.series.so/
- Onboarding: https://join.series.so/
- LinkedIn (founder): https://www.linkedin.com/in/nathaneo-johnson-86aa4a253/
- Crunchbase: https://www.crunchbase.com/organization/the-founder-series
- Forbes profile: https://www.forbes.com/profile/series/
The Short Version
Series is an early-stage consumer social product that routes introductions through Apple's iMessage rather than a standalone app. It uses an AI agent, which the company calls an "AI friend," to broker warm introductions between users with overlapping interests, goals, or needs [series.so] [Forbes, July 2025]. The company was founded in 2025 by Yale undergraduates Nathaneo Johnson and Sean Hargrow. It gained public attention after a LinkedIn trailer posted by Johnson went viral in college entrepreneurial circles, leading to a $3.1 million pre-seed close in roughly 14 days [GlobeNewswire, April 2025] [citybiz].
The product positions itself as the "anti-Facebook" and, in some contexts, as "the first AI social network for students." The AI agent functions as a matchmaker for cofounders, mentors, and prospective employers via curated group chats [Forbes, July 2025] [Luma]. Differentiation rests on the channel choice (iMessage as the runtime) and on positioning the AI as the social graph operator rather than a content recommender. This approach sidesteps the cold-start problem common to new social apps. The founding team is young and operating while still enrolled at Yale, with Johnson publicly describing balancing the company alongside coursework [Business Insider, September 2025]. Capital is pre-seed, and the named lead investor for the round is not public in the cited reporting [GlobeNewswire, April 2025]. Over the next 12 to 18 months, relevant signals will include retention inside iMessage threads, conversion of curated introductions into durable relationships, and whether the brand can extend beyond the Yale and Ivy student core into a broader young professional audience.
Data Accuracy: GREEN -- Confirmed across GlobeNewswire, Forbes, Business Insider, and the company's own surfaces.
Taxonomy Snapshot
| Axis | Value |
|---|---|
| Stage | Pre-Seed |
| Business Model | B2C |
| Industry / Vertical | Media / Entertainment, Social Networking |
| Technology Type | AI / Machine Learning, Conversational Agents |
| Geography | North America (HQ New Haven, CT) |
| Growth Profile | Venture Scale |
| Founding Team | Co-Founders (2), Yale undergraduates |
| Funding | ~$3.1M pre-seed disclosed [GlobeNewswire, April 2025] |
The Company in Brief
Series was incorporated in 2025 and is based in New Haven, Connecticut, the home of Yale University, where its two co-founders Nathaneo Johnson and Sean Hargrow are undergraduates [GlobeNewswire, April 2025] [Bloomberg]. The founding premise, repeated across the company's own pages and third-party coverage, is that warm introductions are the highest-value social primitive online. An AI agent is better positioned than any individual human contact to know who in a network can actually help with a given goal. The company encodes this with the line "Don't bother your friends for warm intros, bother your AI friend instead. It knows more people" [series.so].
The company's public milestone arc is short and well documented. In late March 2025, Johnson posted a trailer for Series on LinkedIn that circulated widely among college founders. Within roughly 14 days, the company closed $3.1 million in pre-seed capital. This arc is described in detail by GlobeNewswire and citybiz and corroborated by Forbes and Business Insider [GlobeNewswire, April 2025] [citybiz] [Forbes, April 2025] [Business Insider, April 2025]. In July 2025, Series launched a Twitch property called "The Series Reality TV Show," extending the brand into livestreamed content rather than confining it to the iMessage product surface [Forbes, July 2025]. Operationally, the team has run a summer house in the Hamptons (July 14 to August 21) where contributors work on product, social, and growth, per the company's careers page [series.so/jobs].
The legal entity name is reported on Bloomberg as "Series Inc/The" with Johnson listed as founder [Bloomberg]. Crunchbase lists the company under the slug "the-founder-series" [Crunchbase]. The company's positioning relative to incumbents is explicit in its own messaging and in press: an "anti-Facebook" framing aimed at younger users who, in the founders' telling, no longer treat legacy social networks as the default for meeting useful new people.
Data Accuracy: GREEN -- Confirmed by GlobeNewswire, Forbes, Business Insider, Bloomberg, and series.so.
What They Have Built
Series is built around a single, unusual design choice: the runtime is iMessage rather than a standalone app or website. According to the company's terms of use, "Series is an artificial intelligence social media platform that operates via iMessage to connect Users to other Users via group chats based on similar interests, and Users are able to chat and interact with an artificial intelligence (AI) friend" [series.so, terms of use]. Forbes describes the mechanic in operational terms: AI agents inside iMessage connect users with people who can help them, including cofounders, mentors, and potential employers, through curated group chats, with the AI matchmakers branded as "AI friends" [Forbes, July 2025].
The product implication is meaningful. By living inside iMessage, Series inherits Apple's distribution surface, push notifications, identity layer (phone number plus iMessage), and conversational UX without having to build or market a separate app shell. The cost is a hard dependency on Apple's permitted use of iMessage for third-party services and on users being inside the iMessage ecosystem, which constrains the addressable population to iPhone users in the near term. Press coverage has consistently described the product as "lean" and "text-based," with introductions, not feeds, as the unit of value [Forbes, July 2025].
The AI layer's underlying model stack is not disclosed in the cited material. The company has not published details on how matches are scored, how user interests are inferred, or how privacy is handled inside the iMessage thread beyond what appears in its terms. The Twitch extension launched in July 2025 ("The Series Reality TV Show") is presented in Forbes as a brand and content surface rather than a product feature inside iMessage [Forbes, July 2025].
Data Accuracy: GREEN -- Confirmed by series.so terms of use and Forbes; model and infrastructure details are not publicly available.
Market Research and Opportunity
The market matters now because the highest-frequency social behavior among under-25 users has shifted decisively from public feeds to private messaging. AI agents are newly capable enough to act inside those messaging threads without breaking the user experience. Series is one of the first venture-backed bets on that combination at the consumer layer.
The most defensible adjacent reference points come from the categories Series itself names as competitive frames. Forbes characterizes Series as a product that puts it in conversation with both LinkedIn-style professional networking and Facebook-style general social networking, with the founders explicitly using "anti-Facebook" as positioning [Forbes, April 2025] [GlobeNewswire, April 2025]. Each of those incumbents anchors a multi-billion-dollar revenue category, which establishes that the willingness-to-pay for social and professional graph products is large and durable.
The demand drivers the cited reporting surfaces are: (1) generational fatigue with feed-based social products and a preference for messaging-native experiences [Business Insider, April 2025]; (2) the emergence of AI agents capable of doing relationship-broker work; (3) the practical value of warm introductions in early-career outcomes [Forbes, July 2025]. Regulatory and platform-risk factors deserve flagging. Because the product runs through iMessage, any change in Apple's stance toward third-party automation inside iMessage threads would be material.
| Metric | Value |
|---|---|
| Series pre-seed raised | $3.1M |
| Time from viral trailer to close | ~14 days |
| Year founded | 2025 |
Data Accuracy: YELLOW -- Demand drivers are corroborated across Forbes and Business Insider, but no named third-party TAM report is in the cited set.
Who Else Is Fighting for This
Series is positioned against incumbents that own the social and professional graph today, plus a fringe of newer messaging-native and AI-companion products that share parts of its design surface.
| Company | Positioning | Stage / Funding | Notable Differentiator |
|---|---|---|---|
| Series | AI agent inside iMessage that brokers warm intros via curated group chats | Pre-seed, ~$3.1M | iMessage as runtime; AI as matchmaker rather than feed ranker |
| Facebook (Meta) | General-purpose social graph and feed | Public, mega-cap | Largest installed social graph, advertising monetization at scale |
| LinkedIn (Microsoft) | Professional identity and intros | Subsidiary of public mega-cap | Verified professional graph, recruiter monetization |
Data Accuracy: YELLOW -- Competitor identification confirmed by GlobeNewswire and Business Insider; competitive scenarios are analyst inference based on cited positioning.
Opportunity
If Series executes, the prize is becoming the default AI-mediated relationship layer for the next generation of internet users, a category that does not have an incumbent today.
The headline opportunity. The single largest outcome Series could plausibly become is the AI agent that owns the "who should I meet" query for an entire generation of young users. The cited evidence makes that outcome reachable rather than purely aspirational for three reasons. First, the product sits inside iMessage, which means no install friction and a real distribution beachhead on every iPhone in the United States [series.so]. Second, the founding team has already demonstrated unusual ability to manufacture attention, raising $3.1 million in 14 days off a single LinkedIn trailer [GlobeNewswire, April 2025]. Third, Forbes' description of the use case (cofounders, mentors, employers) maps to outcomes users genuinely value [Forbes, July 2025].
Growth scenarios.
| Scenario | What happens | Catalyst | Why it's plausible |
|---|---|---|---|
| Ivy-to-elite-university expansion | Series becomes the default intro tool across the top 50 US universities | Campus-by-campus rollout supported by founder-led brand presence and the Twitch reality show as a recruiting funnel | Founders are still enrolled at Yale and have demonstrated organic college-circuit virality |
| Young professional pivot | The product extends from students into early-career professionals seeking jobs, mentors, or cofounders | A verified-identity layer plus integrations with employer or recruiter workflows | LinkedIn's professional-intro use case is the named comparable in Business Insider's pitch deck coverage |
| AI-companion extension | The "AI friend" surface evolves from intro broker into a broader personal agent for social and professional life | Sustained engagement inside iMessage threads beyond the first intro | The company already brands its AI as a "friend" rather than a tool |
Data Accuracy: YELLOW -- Scenarios are analyst inference grounded in cited Forbes, Business Insider, and GlobeNewswire reporting; comparables are public-record acquisition data.
Sources
- [series.so] Series - The First AI Social Network | https://www.series.so/
- [series.so] Series Terms of Use | https://series.so/tou
- [series.so] Series - Join (Intro) | https://series.so/join/intro
- [series.so] Series - Jobs | https://jobs.series.so/
- [Crunchbase] Series - Crunchbase Company Profile & Funding | https://www.crunchbase.com/organization/the-founder-series
- [citybiz] Series Raises $3M in Pre-Seed Funding, Launches AI-Powered Social Platform | https://www.citybiz.co/article/679514/series-raises-3m-in-pre-seed-funding-launches-ai-powered-social-platform/
- [GlobeNewswire, April 2025] Yale founders raise $3.1M in 14 days to build Series, the anti-Facebook | https://www.globenewswire.com/news-release/2025/04/04/3056141/0/en/Yale-founders-raise-3-1M-in-14-days-to-build-Series-the-anti-Facebook.html
- [Bloomberg] Nathaneo Johnson, Founder Series Inc/The: Profile and Biography | https://www.bloomberg.com/profile/person/24936055
- [Forbes] Series company profile | https://www.forbes.com/profile/series/
- [Forbes, April 2025] How Two Yale Juniors Just Raised $3.1 Million For Their Social Network | https://www.forbes.com/sites/davidprosser/2025/04/04/how-two-yale-juniors-just-raised-31-million-for-their-social-network/
- [Forbes, July 2025] Series, A New AI-Assisted Social Network, Launches 'The Series Reality TV Show' On Twitch | https://www.forbes.com/sites/charliefink/2025/07/31/series-a-new-ai-assisted-social-network-launches-the-series-reality-tv-show-on-twitch/
- [Business Insider, September 2025] I raised $3 million for my AI startup as a full-time Yale student | https://www.businessinsider.com/nathaneo-johnson-yale-student-series-raised-million-ai-startup-time-2025-9
- [Business Insider, April 2025] A new AI startup founded by Yale students wants to compete with LinkedIn (pitch deck) | https://www.businessinsider.com/pitch-deck-series-gen-z-professional-network-ai-texting-2025-4
- [Business Insider, April 2025] Yale founders raise $3.1M in 14 days to build Series, the anti-Facebook | https://markets.businessinsider.com/news/stocks/yale-founders-raise-3-1m-in-14-days-to-build-series-the-anti-Facebook-1034551535
- [LinkedIn] Nathaneo Johnson - Series | https://www.linkedin.com/in/nathaneo-johnson-86aa4a253/
Articles about Series
- Series Wants Every Yale Junior's Group Chat to Run Through an AI Friend — The New Haven startup raised $3.1M in 14 days to put warm intros inside iMessage, starting with college students.