Liner has raised $36.1 million in Series C funding to expand its AI research and agent platform, now serving 14 million users and powering enterprise tools like HUMAIN ONE.
TL;DR
- Liner raises $36.1M Series C to grow enterprise AI capabilities and expand global reach.
- The company's AI platform serves 14 million users and powers tools like HUMAIN ONE in Saudi Arabia.
- Liner plans to invest in R&D, infrastructure, and global talent acquisition to strengthen its position in enterprise AI markets.
What happened
Liner has secured $36.1 million in Series C funding, led by LB Investment, with participation from existing and new investors. This brings the company's total funding to approximately $64.3 million. The round comes about 1 year and 10 months after Liner's previous financing and follows its expansion into enterprise AI applications.
Liner's AI platform now serves over 14 million registered users across approximately 220 countries. As of late July 2026, the company ranked No. 30 globally among AI services by web traffic, according to Similarweb, placing it ahead of competitors like Poe, Mistral AI, and Glean. Liner has also appeared on Andreessen Horowitz's Top 100 GenAI Consumer Apps list for four consecutive editions since 2024.
The company's product portfolio includes specialized agents like Liner Scholar for academic research, Liner Write for business use, and Liner Finance for investment research. Liner's technology achieved a score of 95.3 on OpenAI's SimpleQA benchmark for factual accuracy and outperformed GPT-4 in search-response generation. The platform is built around evidence-backed research and source traceability.
Why it matters
This funding round enables Liner to invest in research and development, infrastructure expansion, and global talent acquisition. The company plans to strengthen its position in enterprise AI transformation markets, both in South Korea and internationally. Liner also aims to diversify monetization across its consumer products and adapt its agent technology for additional domestic use cases.
Liner's partnership with HUMAIN, the Saudi Arabian state-backed AI company, illustrates its broader strategy of adapting its search and agent capabilities for large enterprise and institutional customers. The company supplied its deep research-powered AI search engine for HUMAIN ONE, an integrated platform intended for use by Saudi government ministries and major companies.
Liner's focus on product-led growth and technological leadership sets it apart from competitors. The company's emphasis on building a self-sustaining business model through reliable AI agents and evidence-backed research positions it for long-term success in the global AI market.
Key facts
- Liner raises $36.1 million in Series C funding, bringing total funding to $64.3 million.
- The company serves over 14 million registered users across approximately 220 countries.
- Liner ranked No. 30 globally among AI services by web traffic, according to Similarweb.
- The company's AI platform achieved a score of 95.3 on OpenAI's SimpleQA benchmark for factual accuracy.
- Liner's technology powers HUMAIN ONE, an integrated platform for Saudi government ministries and major companies.
- The company plans to invest in R&D, infrastructure, and global talent acquisition to strengthen its position in enterprise AI markets.
- Liner previously raised approximately $17.3 million in its Series B2 round in October 2024.
- The company was founded and is led by CEO Luke Kim.
Context
Liner's expansion into enterprise AI comes at a time when businesses are increasingly adopting AI technologies to streamline operations and enhance decision-making. The company's focus on evidence-backed research and source traceability addresses growing concerns about the reliability and accuracy of AI-generated content.
Liner's partnership with HUMAIN highlights the global demand for AI solutions tailored to specific industries and regions. The company's ability to adapt its technology for large enterprise and institutional customers positions it as a key player in the enterprise AI market.
As the AI industry continues to evolve, companies like Liner that prioritize technological leadership and long-term value creation are well-positioned to capitalize on the growing demand for reliable and accurate AI solutions.
