Primer, one of South Korea’s leading early-stage startup accelerators, hosted its 27th Demo Day at the Korea Science and Technology Center’s international conference hall in Gangnam, Seoul. The event brought together a cohort of early-stage startups that had been selected and mentored by Primer in the second half of 2025, giving them a platform to present their business progress and growth strategies to investors and industry stakeholders.
The Demo Day was structured around three main components: startup pitching sessions, exhibition booths, and a partner conversation segment featuring Primer’s own partners. Teams spanning artificial intelligence, biotechnology, commerce, and consumer goods took the stage, reflecting the diverse range of sectors that Primer continues to back at the earliest stages of company building.

<Presenting Companies >
Team mavrks is building a commerce SaaS platform designed for knowledge creators, offering the convenience of a marketplace alongside the independence of a proprietary storefront — giving creators full control over their brand and customer relationships without sacrificing discoverability.
Molie F&B is reimagining traditional Korean sauces for modern consumers, repositioning classic condiments through a media commerce model that connects Korean culinary heritage with contemporary lifestyles, targeting both domestic and global K-food audiences.
dothegy operates a creator-led management business that partners with influencers to oversee the entire lifecycle of a product — from concept and manufacturing through to distribution — with the goal of building sustainable, long-term consumer brands.
Wesley offers an AI-powered bookkeeping solution aimed at U.S. accounting firms, automating repetitive and time-consuming workflows such as ledger reconciliation and tax filing data collection, allowing accountants to focus on higher-value advisory work.
PieveryAI is developing a hyper-personalized AI investment management platform that aggregates assets according to individual risk profiles, delivering customized daily reports and chat-based financial consultation tailored to each user’s investment preferences.
Qymune is a biotechnology company developing next-generation T cell-engaging bispecific antibody therapies that aim to maintain strong anti-tumor efficacy while dramatically reducing cytokine-related side effects, a major challenge in current cancer immunotherapy.
GPTO provides a brand visibility optimization solution that helps client brands get accurately and prominently recommended within leading generative AI environments — including ChatGPT — by engineering the contextual framing of responses in which those brands appear.
Cantalop is a lifestyle and interior objects brand that incorporates natural rattan and handcrafted design elements into baskets, home décor, and other living accessories, aiming to bring artisanal beauty into everyday spaces.
ALTNis an AI-powered short-form content platform that automatically generates short-form advertisements and marketing content from text or image inputs alone — no filming required — helping brands and marketers produce high-quality video content at scale and with greater efficiency.