On a recent evening in New York, Mathew Lazarus and Matt Shenker, the co-founders of Mattermore, hosted a small gathering they called Trust by Design: AI + the Future of Work [Luma, 2026]. The framing is telling. Mattermore is not pitching a chatbot or a copilot. It is pitching a thesis: that the next generation of people analytics has to earn the trust of the HR leader before it ever touches a manager's calendar. That is a slower sale than most AI startups want to make in 2026, and it is the bet this company is built around.
Mattermore, founded in 2023 and based in New York, describes itself as an AI-driven people analytics and performance development platform personalized by workflows [Mattermore.ai]. A second public description, captured in a company directory listing, calls it a workplace performance evolution platform combining AI and behavioral science to help leaders sustain high performance [The Org, 2026]. Stripped of the marketing language, the wedge is straightforward: ingest the operational signals a company already generates about its people, run analytics on top, and feed back personalized training and leadership development. The ICP, based on the language and the SOC 2 posture the company has published, is the head of people or chief people officer at a mid-market knowledge-work employer, the kind of buyer who already has Workday or Rippling for system of record and is shopping for a development layer that sits on top.
The bet
The interesting part of Mattermore's bet is not the analytics. People analytics as a category has existed for over a decade, and the incumbents (Visier, Culture Amp, Lattice, 15Five) are well capitalized. What Mattermore is wagering is that behavioral science plus generative AI can finally make leadership development personalized at the individual manager level, rather than delivered as a quarterly cohort program. Lazarus and Shenker have spoken publicly about using AI and behavioral science to reshape learning and leadership development [Spotify]. That is a real product gap. Most large enterprises spend meaningful budget on leadership coaching that reaches only the top two layers of management. If Mattermore can extend something coach-like to the front-line manager at a defensible price, the addressable buyer list is large.
The company has done the unsexy work that suggests it is courting enterprise buyers seriously. Mattermore has completed SOC 2 Type 1 and has stated it is working toward Type 2 in Q1 2026 [Mattermore.ai]. For a pre-seed company with a small team, that is an early signal that the founders understand the procurement cycle they are walking into. HR data is among the most most sensitive a company holds, and no CPO at a regulated employer will pilot a tool without at least Type 1 in hand.
Why it could be big
The tailwind here is real. Mid-market companies are under pressure to do more with flatter org charts, and the budget owner for manager effectiveness, usually the CHRO or VP of People, is actively shopping for tools that promise to make individual managers better without adding headcount to L&D. AI-native entrants have a credible opening because the incumbents built their products in an era when personalization meant survey segmentation, not generative content tuned to a specific manager's team and goals. If Mattermore can land a handful of design partners in the 500 to 5,000 employee range and show retention through a renewal cycle, the story writes itself for a seed round.
The company is also being deliberate about narrative. Lazarus hosts a podcast, Work 4.0, where the founding story has been laid out in long form [Spotify], and Shenker has appeared on adjacent shows discussing the company's view of relationships at work [Spotify, 2026]. That kind of founder-led content is a reasonable substitute for paid demand generation at the pre-seed stage, particularly for a category where the buyer reads.
The team and traction
Mattermore is led by Mathew Lazarus as Chief Executive Officer [The Org, 2026], with Matt Shenker as co-founder [Bridges Between Us Podcast, 2026] and Trevor Cohen as co-founder and CTO based in New York [SignalHire, 2026; RocketReach, 2026]. The team is small, with company directory data indicating two to ten employees [Prospectoo, 2026], and the company is currently hiring a Backend Engineer [Mattermore.ai, 2026], suggesting the engineering build-out is the immediate priority rather than a sales hire. That sequencing is consistent with a product still being shaped around early design partners.
| Signal | Status | Source |
|---|---|---|
| Founded | 2023 | Mattermore.ai |
| Headcount | 2 to 10 | Prospectoo, 2026 |
| SOC 2 Type 1 | Completed | Mattermore.ai |
| SOC 2 Type 2 | Targeted Q1 2026 | Mattermore.ai |
| Open roles | Backend Engineer | Mattermore.ai, 2026 |
The honest counterfactual
What bears will say is that the people analytics and performance development category is crowded, and that a competitor like Tur.ai is chasing the same AI-native wedge with similar messaging. The realistic competitive set for Mattermore includes Tur.ai at the AI-native end, Lattice and 15Five at the established performance-management end, and BetterUp at the coaching end. Each of those has either capital, distribution, or an installed base that a pre-seed startup does not. What bulls answer is that the category has historically rewarded products that own a specific workflow rather than the broadest feature set, and Mattermore's stated wedge (analytics personalized by the customer's workflows, plus development) is narrower than a full HRIS replacement and easier to land as an add-on. The renewal motion is the part to watch. Performance tools live or die on whether the manager actually uses them in month four, and no public retention data exists yet to judge that.
What to watch
The next twelve months for Mattermore should be readable from the outside. Three things will matter: whether the company closes SOC 2 Type 2 on the stated Q1 2026 timeline, whether it announces a priced seed round (none is on the public record), and whether any named design-partner customer surfaces in the company's own materials. A first named logo in the mid-market would be the strongest possible signal, because it would tell other CHROs that someone like them has already taken the procurement risk. For a category where the buyer is cautious by nature, that first reference is worth more than any product demo.
Procurement cycle, budget owner, renewal motion. Those are the three questions any enterprise software story has to answer eventually, and Mattermore is at the stage where the answers are still being written.
, Pipe Haddad, Enterprise and SaaS Reporter, Startuply