"Pre-Unicorn" MangoBoost Accelerates Series B Funding on Alliance with AMD

MangoBoost Launches Commercial AI Platform at AMD Event
Backed by Stonebridge Ventures and IMM Investment

MangoBoost, an artificial intelligence (AI) infrastructure company backed by Stonebridge Ventures and IMM Investment, is set to launch its Series B funding round, building on its alliance with AMD.

According to industry sources on July 28, MangoBoost is preparing for its Series B funding. Discussions are underway regarding the participation of both strategic investors (SI) and financial investors (FI).

Earlier, MangoBoost officially launched its serverless AI inference platform, "Mango Inference," at "AMD Advancing AI 2026" held in San Francisco, USA, on July 22-23 (local time).

At this event, the company unveiled inference performance on the latest AMD accelerators that surpassed Nvidia's next-generation chips. MangoBoost combined its proprietary software with AMD's newest AI accelerator "MI355X" and compared its performance to Nvidia’s latest chip, the "B300." As a result, the AI response time was 28 seconds, 5.1 times faster than Nvidia's 142 seconds. Under the same conditions, the throughput was also 1.25 times higher. MangoBoost exhibited even better performance in tests with AI models specialized for inference, such as the DeepSeek-R1 model.

This level of performance was also officially confirmed by MLPerf, the leading international standard for AI performance benchmarking. MangoBoost and AMD have participated in MLPerf three consecutive times, receiving official validation of the inference performance of AMD-based infrastructure. After conducting a months-long joint project with AMD’s engineering team—including an AMD Fellow Director—and showing significant results, MangoBoost was directly invited by AMD to its largest annual event.

On the 22nd to 23rd (local time), at 'AMD Advancing AI 2026' held in San Francisco, USA, Eriko Nurvitadhi, CAIO of Mangoboost (far left), is explaining technology to Paik Kyunghun, Minister of Science and ICT, and Lisa Su, CEO of AMD, who visited the booth (from left to right). Photo by Mangoboost

The recently launched Mango Inference is a serverless inference platform that enables developers to instantly deploy the latest AI models via APIs without building or operating their own GPU infrastructure. Revenue expands based on usage. At launch, the company also started a pre-credit program to attract more developers.

Jangwoo Kim, CEO of MangoBoost, commented, “We believed that the core competitiveness would not be in simply building larger models, but in running AI infrastructure that is stable, fast, and cost-efficient. We are now proving this conviction in the global market through our partnership with AMD, success in MLPerf, and the Mango Inference service.”

Now in its fourth year since founding, MangoBoost is considered a “pre-unicorn” company. It raised 13 billion won (KRW 13 billion) in its seed round in May 2022 and approximately 70 billion won (USD 55 million) in its Series A round in 2023. At the time of Series A, the company was valued at around 403 billion won. Stonebridge Ventures led the seed round and continued with follow-up investment in Series A. IMM Investment led the Series A round.

Youngdon Song, Executive Director at Stonebridge Ventures, who first discovered MangoBoost, said, “MangoBoost has been steadily proving the technology it promised at the time of founding—through collaboration with AMD, global benchmarks, and commercial services—in a field so technically challenging that few teams around the world attempt it.”

Meanwhile, during the "AMD Advancing AI 2026" event, AMD CEO Lisa Su and Paik Jonghun, Vice Minister and Minister of Science and ICT, visited MangoBoost's booth and expressed keen interest in the technology partnership between AMD and MangoBoost.

This content was produced with the assistance of AI translation services.