Liner Raises $36.1M for Enterprise AI Search
▼ Summary
– Liner, a South Korean AI search startup, secured $36.1 million in Series C funding led by LB Investment, bringing its total capital raised to $64.3 million.
– The company leverages its citation-backed retrieval technology to offer enterprise solutions that provide traceable and verifiable AI-generated answers for corporate clients.
– Liner has expanded its product portfolio with specialized agents like Liner Scholar, Liner Write, and Liner Finance, targeting academic, business, and investment sectors.
– Operating globally with 14 million users across 220 countries, Liner differentiates itself by focusing on the evidence layer between user queries and model responses rather than building foundation models.
– Recent rankings from Similarweb and Andreessen Horowitz highlight Liner’s strong consumer presence and growth trajectory in the competitive generative AI market.
Liner, a South Korean artificial intelligence search startup, has secured $36.1 million in Series C funding to accelerate its transition from a consumer research tool to an enterprise-grade AI provider. The round was led by LB Investment, with participation from returning backers InterVest, Atinum Investment, and CJ Investment. New investors joining the fold include the Korea Development Bank, KB Securities, Daishin Securities, STIC Ventures, and Helios Private Equity. This latest injection brings Liner’s total capital raised to approximately $64.3 million.
The company operates on the premise that its citation-backed retrieval technology can satisfy corporate and government clients who require verifiable AI-generated answers. Founded by CEO Luke Kim, Liner initially gained traction as a web information organizer before evolving into a comprehensive AI research assistant. Its product suite now includes specialized agents such as Liner Scholar for academic purposes, Liner Write for business communications, and Liner Finance for investment analysis.
Global Reach and Technical Performance
Liner maintains headquarters in Seoul and San Francisco, boasting 14 million registered users across 220 countries. According to Similarweb data from late July 2026, the platform ranked 30th globally for AI-service web traffic, surpassing several more recognizable brands. It has also been featured in four consecutive editions of Andreessen Horowitz’s ranking of leading consumer generative AI products since 2024.
Rather than developing new foundation models, Liner differentiates itself by focusing on the critical layer between user queries and model responses. By grounding answers in traceable source material, the company addresses the common issue of generative AI hallucinations or unsupported claims. This approach is particularly vital for high-stakes sectors like finance and government policy. On OpenAI’s SimpleQA benchmark, which assesses accuracy on short factual questions, Liner achieved a score of 95.3, outperforming GPT-4 in search-response generation.
Enterprise Integration and Strategic Growth
A significant milestone in Liner’s B2B expansion is its integration into HUMAIN ONE, an enterprise platform backed by the Saudi Arabian government. Developed by AI firm HUMAIN, this deployment serves as a key reference case where data control, source quality, and explainability are paramount. Liner reportedly won the contract after benchmarking against other global technology providers.
While consumer AI adoption is rapid, sustainable revenue often relies on durable enterprise contracts. To capitalize on this, Liner plans to utilize the Series C funds to enhance R&D infrastructure, recruit top global talent, and expand its B2B sales efforts in South Korea and international markets. The company intends to refine monetization strategies for its consumer base while simultaneously scaling its enterprise offerings.
Regarding the strategic importance of this funding, CEO Luke Kim stated:
“This investment goes beyond merely expanding our footprint,” Kim said in a statement. “It serves as a strategic foundation to secure world-class infrastructure and top global talent, both of which are essential to anchoring reliability, the ultimate core of any AI agent.”
The challenge ahead lies in converting this focus on reliability into repeatable enterprise sales. With a strong consumer footprint, a citation-first design, and proven deployments like HUMAIN ONE, Liner possesses tangible evidence to support its enterprise pitch. The new capital provides the resources necessary to determine if these assets can form the basis of a sustainable global AI business.
(Source: The Next Web)
