Upstage Raises $45 Million In Series B Bridge Funding Round

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Upstage, an AI company specializing in large language models (LLMs) and document processing, announced a $45 million Series B bridge funding round. This follows a $72 million Series B round in April 2024, bringing the company’s total funding to $157 million. The bridge round was led by Korea Development Bank (KDB), with significant investments from the venture capital arms of Amazon and Advanced Micro Devices (AMD). Existing investors, including KB Securities, Shinhan Venture Investment, Mirae Asset Venture Investment, Primer Sazze Partners, and Premier Partners, also participated, reinforcing their confidence in Upstage’s growth trajectory.

The funds are earmarked for several key initiatives:

• Global Expansion: Upstage is prioritizing expansion into the U.S. market, with a focus on the insurance industry, where its AI-driven Document Intelligence suite addresses high adjudication costs, estimated at $25.7 billion annually in the U.S., with $18 billion tied to inefficiencies like overturned denials and manual processes.
• Product Development: The investment will accelerate research and development for Upstage’s Solar language model family, including the recently introduced Solar Pro 2, a 31-billion-parameter model optimized for complex reasoning in math, coding, and legal analysis. Enhancements to the Document Intelligence suite, which achieves over 95% accuracy in extracting data from unstructured documents, are also planned.
• Sales and Marketing Growth: Upstage aims to scale its go-to-market strategy, increasing sales and marketing hires to drive adoption in regulated industries like insurance, healthcare, and finance.
• Strategic Collaboration with AWS: The funding strengthens Upstage’s partnership with AWS, leveraging AWS’s machine learning infrastructure, including SageMaker, Trainium, and Inferentia, to enhance model performance and deployment scalability.

Investor Confidence and Market Positioning

The participation of high-profile investors like Amazon and AMD underscores Upstage’s growing influence in the global AI landscape. Amazon’s involvement aligns with its broader AI strategy, providing Upstage access to AWS’s cloud computing resources and expertise. AMD’s investment highlights Upstage’s potential in optimizing AI models for advanced hardware, particularly for on-device and enterprise-grade applications. The continued support from existing investors, such as Primer Sazze Partners and SBVA (formerly SoftBank Ventures Asia), reflects confidence in Upstage’s ability to deliver scalable, high-accuracy AI solutions.

Upstage’s recognition on the CB Insights AI 100 list in 2025 and its first-place ranking on the Hugging Face Open LLM Leaderboard further validate its technological prowess. The company’s focus on enterprise-grade solutions, particularly its Document Intelligence suite and Solar LLM, positions it as a leader in addressing real-world business challenges, such as document parsing, workflow automation, and agentic task execution.

Industry Applications

Upstage’s AI solutions are tailored for industries with high regulatory and accuracy requirements:

• Insurance: The Document Intelligence suite transforms unstructured documents (e.g., policies, claims, invoices) into structured formats, reducing manual data entry and enabling faster decision-making. This is particularly impactful in addressing the $18 billion in U.S. insurance costs tied to inefficiencies.
• Healthcare: Upstage’s tools power LLM-driven automation for clinical and operational documents, supporting faster decisions and improved care delivery.
• Finance and Legal: The company’s OCR technology, with over 95% accuracy, extracts key data from contracts and financial statements, streamlining processes in these sectors.

Competitive Landscape

Upstage competes with companies like UiPath, Abbyy, Liquid AI, Gradient, and Humanloop in the AI document processing and LLM space. Its unique strength lies in its context-aware Document Intelligence suite, which interprets document layout and purpose holistically, unlike traditional OCR tools. The Solar LLM family, optimized for speed and cost-efficiency, outperforms models from tech giants like Microsoft, Meta, and Google in certain benchmarks, particularly for enterprise-specific applications.

Funding Round Details

Upstage, a South Korean AI company headquartered in Yongin with a U.S. office in San Jose, California, announced a $45 million Series B bridge funding round. This round, led by Korea Development Bank (KDB), included investments from the venture capital arms of Amazon and Advanced Micro Devices (AMD), alongside existing investors such as KB Securities, Shinhan Venture Investment, Mirae Asset Venture Investment, Primer Sazze Partners, and Premier Partners. The bridge round builds on a $72 million Series B round announced on April 16, 2024, bringing Upstage’s total capital raised to $157 million, making it the most-funded AI software company in South Korea.

The 2024 Series B round, which raised $72 million, was led by investors including SK Networks, KT, Korea Development Bank, Shinhan Venture Investment, Hana Ventures, Mirae Asset Venture Investment, and Industrial Bank of Korea, with participation from existing investors like SBVA (formerly SoftBank Ventures Asia), Primer Sazze Partners, Company K Partners, and Premier Partners. Cumulatively, Upstage has raised funds over four rounds since its founding in October 2020, with earlier rounds including a $27.3 million Series A in September 2021 and a seed round in 2021.

Strategic Objectives and Use of Funds

The $45 million bridge funding is strategically allocated to support Upstage’s growth and innovation:

• U.S. Market Expansion: Upstage is targeting the U.S. insurance industry, where manual processes contribute to significant inefficiencies. A 2024 study highlighted that U.S. insurance companies incurred $25.7 billion in adjudication costs, with $18 billion linked to overturned denials and unnecessary review cycles. Upstage’s Document Intelligence suite, which transforms unstructured documents into structured, LLM-ready formats with over 95% accuracy, aims to reduce these costs by automating claims processing and broker submissions.
• R&D for Solar LLM: The funds will enhance the Solar language model family, including Solar Pro 2, a 31-billion-parameter model designed for complex reasoning in math, coding, and legal analysis. Upstage’s proprietary Depth-Up Scaling (DUS) technique ensures high performance and cost-efficiency, positioning Solar as a competitive alternative to models from tech giants like Microsoft, Meta, and Google.
• Document AI Advancements: Upstage’s Document Intelligence suite, which includes Document Parse and Information Extract, will see further development. These tools use advanced OCR and contextual understanding to process documents like policies, contracts, and invoices, achieving 99% accuracy in key data extraction.
• Sales and Marketing Expansion: The funding will support hiring in sales and marketing to drive adoption in regulated industries across the U.S. and Asia-Pacific (APAC) regions, particularly in Japan and Southeast Asia.
• AWS Collaboration: Upstage’s partnership with AWS, its preferred cloud provider, will be deepened, leveraging AWS’s infrastructure (SageMaker, Trainium, Inferentia) to scale model deployment and optimize performance for enterprise use cases.

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Investor Profile and Strategic Implications

The involvement of Amazon and AMD in the bridge round is significant:

• Amazon: As a leader in cloud computing and AI, Amazon’s investment provides Upstage with access to AWS’s machine learning infrastructure and marketplace, enhancing scalability and reach. The AWS-Upstage AI Initiative, launched in April 2025, offers free API access to educational and nonprofit institutions, with over 200 organizations, including Seoul National University and KAIST, participating.
• AMD: AMD’s investment aligns with Upstage’s focus on optimizing AI models for advanced hardware, particularly for on-device and enterprise applications. This could enhance Solar’s performance on AMD-powered systems, broadening its applicability.
• Korea Development Bank (KDB): As a state-backed institution, KDB’s leadership in both the 2024 and 2025 rounds signals strong domestic support for Upstage’s role in South Korea’s AI ecosystem.

Existing investors, such as Primer Sazze Partners, SBVA, and Company K Partners, have consistently supported Upstage since its Series A in 2021, reflecting long-term confidence in its vision to deliver “AGI for work” solutions. The diversity of investors, spanning domestic financial institutions, global tech giants, and venture capital firms, underscores Upstage’s appeal across markets.

Product Portfolio and Industry Impact

Upstage’s core offerings include:

• Solar LLM: A family of enterprise-grade language models optimized for speed, cost-efficiency, and groundedness. Solar Pro 2, with 31 billion parameters, excels in complex reasoning tasks, while Solar Mini is available via AWS SageMaker JumpStart and supports a 16K context length. Solar’s performance has earned it the top spot on the Hugging Face Open LLM Leaderboard, surpassing models like Meta’s Llama 2 and OpenAI’s GPT-3.5 in certain benchmarks.
• Document Intelligence Suite: Comprising Document Parse and Information Extract, this suite transforms unstructured documents (e.g., PDFs, scans, emails) into structured formats with over 95% accuracy. Unlike traditional OCR tools, Upstage’s solution interprets document layout and context, making it ideal for industries like insurance, healthcare, and finance.
• Upstage AI Space: A tool that enables brokers to query large documents in plain language, delivering precise answers with sources, saving hours of manual review.

These solutions address critical pain points in high-stakes industries:

• Insurance: Upstage’s tools automate claims, underwriting, and policy workflows, reducing the $18 billion in U.S. insurance costs tied to inefficiencies. Customers like Hanwha Life rely on Upstage’s OCR for scalable document automation.
• Healthcare: LLM-driven automation streamlines clinical and operational document processing, supporting faster decisions and better care outcomes.
• Finance and Legal: The suite extracts key data from contracts and financial statements, enabling faster and more accurate decision-making.

Competitive Landscape and Differentiation

Upstage operates in a competitive AI market, with rivals including UiPath, Abbyy, Liquid AI, Gradient, and Humanloop. Its key differentiators include:

• Context-Aware Document Processing: Unlike traditional OCR tools that extract static fields, Upstage’s Document Intelligence suite understands document layout and purpose, achieving 99% accuracy in key data extraction.
• Cost-Efficient LLMs: Solar LLM’s Depth-Up Scaling (DUS) technique delivers GPT-4-level performance at lower computational costs, making it accessible for enterprise deployment.
• Flexible Deployment Options: Upstage offers console-based testing via REST API, AWS Marketplace integrations, and on-premises deployment for compliance-heavy industries.

Upstage’s open-source initiatives, such as Evalverse (for LLM evaluation) and Dataverse (for data preprocessing), further distinguish it by fostering innovation and community engagement in the AI ecosystem.

Achievements and Recognition

Upstage’s technological and market achievements include:

• CB Insights AI 100 (2025): Recognized as one of the top 100 AI companies globally, highlighting its innovation and impact.
• Hugging Face Open LLM Leaderboard: Solar LLM’s first-place ranking underscores its performance against leading models.
• Research Contributions: Over 140 papers published in top AI conferences (e.g., NAACL, ICLR, NeurIPS), including a 2024 NAACL paper on Solar 10.7B’s Depth-Up Scaling methodology.
• Strategic Partnerships: Collaborations with AWS, Polaris Office, Kakao Healthcare, and Bespin Global enhance Upstage’s market reach and technological capabilities.

The $45 million bridge funding positions Upstage to accelerate its global ambitions, particularly in the U.S., where it established a subsidiary in February 2024, led by co-founder Lucy (Eunjeong) Park. The focus on the insurance industry, coupled with enhancements to Solar LLM and Document Intelligence, aligns with growing demand for AI-driven automation in regulated sectors. Upstage’s collaboration with AWS and recognition on global AI rankings suggest it is well-poised to compete with established players while carving out a niche in enterprise-grade AI solutions.

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