Sizl

About Sizl

Sizl, a company established in August 2016 by CEO Lee Ji-hyun, is carving a niche in the smart factory sector. Lee, who majored in Technology Management, embarked on her entrepreneurial journey immediately after university, with Sizl being her third venture. Her pivot into the smart factory market was inspired by an employee with a background in manufacturing R&D, aiming to provide tangible, real-world AI applications to enhance the competitiveness of domestic manufacturing firms.

The firm focuses on developing and implementing artificial intelligence-based smart factory solutions tailored for small and medium-sized manufacturing enterprises. Its business model revolves around providing a comprehensive, one-stop service that boosts production efficiency without necessitating costly equipment overhauls. Revenue is generated through the sale and installation of its modular hardware and software solutions, followed by after-service support. A secondary revenue stream is being developed by leveraging the vast amounts of process data collected to offer advanced AI-driven analytics.

Sizl's core offering is a process optimization platform that utilizes IIoT sensors and proprietary controllers to gather and analyze manufacturing data in real-time. This system monitors key processes like press operation, welding, and CNC machining, collecting data up to 40 times per second to identify inefficiencies and predict defects. The modular nature of the technology, encompassing systems like the Press Monitoring System (PMS), Welding Monitoring System (WMS), and a central Manufacturing Execution System (MES), allows for customized implementation based on a client's specific needs. This approach enables manufacturers to increase output, reduce defect rates, and shorten lead times. For instance, one client increased hourly production from 1,000 to 1,200 units and halved its defect rate.

The company has achieved significant financial milestones, including a 5.5 billion KRW Series A funding round in 2021 and a substantial 23.7 billion KRW pre-IPO round in early 2025, which brought its total accumulated investment to nearly 30 billion KRW. This recent funding values the company at 55 billion KRW pre-money and is intended to fuel overseas expansion. Sizl is preparing for a KOSDAQ listing, with KB Securities as the lead underwriter, potentially as early as the latter half of 2025.