Working Paper 26-090 AI-Native Firms Hyunjin Kim Rembrand Koning AI-Native Firms Hyunjin Kim INSEAD Rembrand Koning Harvard Business School Working Paper 26-090 Copyright © 2026 by Hyunjin Kim and Rembrand Koning. Working papers are in draft form. This working paper is distributed for purposes of comment and discussion only. It may not be reproduced without permission of the copyright holder. Copies of working papers are available from the author. Funding for this research was provided in part by Harvard Business School. AI-Native Firms∗ Hyunjin Kim INSEAD Rembrand Koning Harvard Business School June 9, 2026 We study how firms built around AI capabilities—“AI-native” firms—are organized. Drawing on Y Combinator batches W20–F24 and U.S. venture-backed startups whose first financing closed between 2020 and 2024, we classify each firm’s AI-native status and link it to workforce microdata on team size, function, seniority, and hierarchy. Relative to non-AI startups in the same industry-cohort, AI-native firms are 25% smaller. Their share of engineers is 13% greater, and the shares of entry-level workers and managers are each roughly 15% lower. Their hierarchies are half a seniority level flatter—yet valuations are comparable, suggesting higher value created per employee. We argue these patterns reflect two channels: a process channel, in which AI changes how people work inside the firm, and a product channel, in which AI capabilities are built into what the firm sells. Using text from product descriptions and job postings, we find that embedding AI into the product, beyond layering on AI tools into existing workflows, is a primary way startups are scaling “knowledge work” without large teams of knowledge workers. ∗ Kim: h@insead.edu. Koning: rem@hbs.edu. The authors gratefully acknowledge financial support from the AI Institute at Harvard Business School and INSEAD. The authors thank Samay Gupta and Simonne Pinto for research assistance. We thank Ajay Agrawal, Arnaldo Camuffo, Lauren Thomas, Todd Lensman, and Abhishek Nagaraj along with seminar participants at SMS, the HBS EM working lunch, and the INSEAD brownbag for their especially helpful feedback. 1 1 Introduction Technology reshapes organizational form. Railroads and the telegraph allowed firms to serve national markets, increasing the returns to coordinating across distance and creating the conditions for large managerial hierarchies (Chandler, 1993). Electricity altered how work could be organized on the factory floor and spurred the rise of scientific management (David, 1990). The internet lowered communication and coordination costs, supporting more platform-based, networked, and distributed forms of organization (Shapiro and Varian, 1999). Across technologies—from lithography to Linux—product and organizational architectures often co-evolve (Henderson and Clark, 1990; Colfer and Baldwin, 2016). How will AI reshape firms? Recent research has largely focused on a process channel, emphasizing how AI tools augment or automate work inside the firm through agentic coding, AI-assisted customer service, automated sales operations, and many other internal tasks (Peng et al., 2023; Brynjolfsson, Li, and Raymond, 2023; Dell’Acqua et al., 2023; Csaszar, Ketkar, and Kim, 2024; Otis et al., 2025; Sarkar, 2026; Kim, Kim, and Koning, 2026). Yet AI can be used for more than internal work. AI-native firms embed AI into their products, allowing customers to generate slide decks with AI, build software, and even run their accounts receivable. This product channel shifts productive capability from the internal organization into the product, moving knowledge work that would have required large teams to be performed directly in the product itself through imported model capabilities. Both channels suggest that “AI-native” firms—those that are built around AIenabled products and processes—may be organized differently than comparable non-AI firms. In this paper, we highlight this product channel and explore whether AI-native firms are, in fact, organized differently. We focus on startups because new firms are less constrained by legacy structures, making them a likely setting in which new organizational forms first become visible. Measuring whether a firm is AI-native presents a challenge because, as our two channels illustrate, there are many ways companies can be built around AI. Here, we leverage the fact that Y Combinator (YC), a leading accelerator for early-stage companies, curates and encourages startups to tag themselves with public labels to help investors, journalists, and customers discover new ventures they might be interested in. We leverage the fact that startups can add an “AI” tag to their public profile, enabling us to identify startups that claim that AI is central to their firm, whether that is embedding it into their products, using it as a core part of their production process, or something else entirely. To test if our YC results generalize beyond this extremely selected set of firms, we also 2