Silicon Box Valuation, Funding & Investors

Silicon Box is valued at $1B as of August 2024.

Last Silicon Box valuation

$1B

Series B · Aug 2024

Last Silicon Box funding round

$100M

Series B · Aug 2024

Cumulative funding Silicon Box raised

$508M

across 4 funding rounds

Key investors in Silicon Box

  • Byung Joon Han
  • BlueRun Ventures
  • Weili Dai
  • Sehat Sutardja
  • Mike Han
  • Lam Capital

Silicon Box Overview

About Silicon Box

Silicon Box is a Singapore-headquartered outsourced semiconductor assembly and test provider focused on advanced packaging solutions including fan-out wafer-level and chiplet-based system-in-package technologies. The company handles full-turnkey execution from front-end design through high-volume manufacturing for sectors such as AI accelerators, high-performance computing clusters, electric vehicle powertrains, automotive sensors, power management ICs, mobile SoCs, RF modules, and data center processors. Founded in 2020, Silicon Box operates a 60,000-square-meter facility in the Singapore Science Park and has secured over $300 million in funding from investors like Temasek Holdings and Capital 300 to scale production.


Founded

2021

HQ

SingaporeSingapore

Status

Privately held

Customer focus

B2B

Revenue model

Services

Valuation

$1B (Aug 2024)

Silicon Box Valuation

Silicon Box is currently valued at $1B, based on its Series B in August 2024.

The $100M round was led by Prysm Capital, with participation from Weili Dai, Mike Han and Byung Joon Han.

Silicon Box's valuation has moved from $1.6B at its Series B in January 2024 to $1B in August 2024, across 2 priced rounds.

Silicon Box valuation by funding round

Silicon Box valuation by funding round
DateStageValuation
Aug 2024Series B$1B
Jan 2024Series B$1.6B

Silicon Box Funding History

Silicon Box has raised a total of $508M across 4 funding rounds.

Silicon Box's first fundraising round was a $51M seed round in May 2021. The most recent completed round was a $100M Series B in August 2024.

Silicon Box funding rounds

Silicon Box funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Aug 2024Series BPrysm Capital (lead); Weili Dai; Mike Han; Byung Joon Han$100M$1BSilicon Box is a Singapore-based semiconductor packaging company founded in 2021 by Sehat Sutardja, Weili Dai, and CEO Han Byung Joon, specializing in chiplet integration technology for high-performance applications in AI accelerators, data centers, automotive, mobile computing, and large language models. The company leverages advanced panel-level packaging to address challenges in chiplet adoption, offering scalable, power-optimized solutions amid shortages in advanced packaging capacity. It is building a multibillion-dollar factory in Singapore to support expansion and mass adoption of AI technologies. In early 2024, Silicon Box raised $200 million in a Series B funding round, achieving a post-money valuation over $1 billion (unicorn status) less than three years after founding. All three founders participated as investors, alongside strategic backers including BRV Capital, Event Horizon Capital, Grandfull Convergence Fund, Hillhouse Capital, Lam Capital (Lam Research's venture arm), Maverick Capital, Praesidium Capital, Tata Electronics, TDK Ventures, and UMC Capital. The funding supports rapid scaling of Silicon Box's state-of-the-art factory and advanced packaging solutions to meet demand in high-growth markets like generative AI and chiplet architectures, which provide benefits such as higher yields and IP reuse compared to traditional SoC designs. Intel Capital was advised in the transaction by Rajah & Tann Singapore.
Jan 2024Series BTata Electronics; Grandfull Convergence Fund; Prasedium Capital; Event Horizon Capital; TDK Ventures; BlueRun Ventures; Hillhouse Investment; Maverick Capital; Sehat Sutardja; Lam Capital; TDK; Byung Joon Han$200M$1.6BSilicon Box is a Singapore-based semiconductor packaging and chiplet integration company founded in 2021 by Sehat Sutardja, Weili Dai, and Han Byung Joon. The company specializes in chiplet technology—integrating multiple smaller chips within a single package—a cutting-edge approach favored by companies like Apple and AMD that offers enhanced flexibility, performance, and efficiency. The technology is particularly valuable for high-growth markets including AI accelerators, data centers, automotive, electric vehicles, and mobile computing applications. In January 2024, Silicon Box announced a Series B funding round that raised $200 million, bringing the company's post-money valuation to over $1 billion. Key investors included the three founders, along with strategic partners BRV Capital, Event Horizon Capital, Grandfull Convergence Fund, Hillhouse Capital, Lam Capital, Maverick Capital, Prasedium Capital, Tata Electronics, TDK Ventures, and UMC Capital. The company achieved this $1 billion+ valuation in less than three years from founding, earning recognition as one of the fastest time-to-$1 billion+ valuations in semiconductor manufacturing. The capital was deployed to accelerate production at Silicon Box's state-of-the-art 73,000 square-meter factory in Tampines, Singapore, which was completed in just 11 months. The facility, representing a $2 billion investment, began volume production on the company's proprietary large-format SiPlet® process line within three months of opening and shipped to customers within five months. The manufacturing facility is designed to produce semiconductor chiplet interconnections with solutions that reduce manufacturing costs by up to 90% while delivering better thermal and electrical performance, addressing industry-wide shortages in advanced packaging solutions. By the end of 2024, Silicon Box's Series B round had ultimately raised $302.5 million, bringing the company's valuation to $1.55 billion. In its first year of production at the Singapore factory (2024), the company reported revenue of $1.87 million from pre-qualified customers' production and R&D investments from major customers. The company doubled its employee headcount during this period and achieved 39.80% net asset growth, demonstrating strong market demand for advanced semiconductor development and positioning Silicon Box for continued expansion with plans for a second manufacturing facility in Italy.
Mar 2022Series AWeili Dai; BlueRun Ventures; Tata Group; Sehat Sutardja; Mike Han; Lam Capital; Byung Joon Han$157M-Silicon Box is a Singapore-based semiconductor integration startup founded in 2021, specializing in advanced chiplet packaging and semiconductor design services. The company focuses on chiplet concept applications for high-performance computing and next-generation semiconductor manufacturing. In late 2024 or 2025, Silicon Box announced plans to invest €3.2 billion in a new semiconductor fabrication facility in Italy, signaling significant expansion and capital deployment in the advanced packaging sector.
May 2021SeedIgnite Innovation Fund; Weili Dai; BlueRun Ventures; Sehat Sutardja; Mike Han; Byung Joon Han$51M--

Who has invested in Silicon Box?

17 investors have backed Silicon Box across its funding rounds, including Byung Joon Han, BlueRun Ventures, Weili Dai, Sehat Sutardja, Mike Han and Lam Capital.

Lead investors include Prysm Capital.


Silicon Box Investors

Investors in Silicon Box by funding rounds participated
InvestorHQRoundsRoleFirst check
Byung Joon HanSingaporeSingapore4ParticipantMay 2021
Weili DaiUnited StatesSan Jose, CA3ParticipantMay 2021
BlueRun VenturesUnited StatesSan Francisco, CA3ParticipantMay 2021
Sehat SutardjaUnited StatesLas Vegas, NV3ParticipantMay 2021
Mike HanUnited StatesNew York City, NY3ParticipantMay 2021
Lam CapitalUnited StatesSan Francisco, CA2ParticipantMar 2022
Tata ElectronicsIndiaKrishnagiri1ParticipantJan 2024
Grandfull Convergence Fund--1ParticipantJan 2024
Ignite Innovation FundUnited KingdomLondon1ParticipantMay 2021
Prasedium CapitalUnited StatesHouston, TX1ParticipantJan 2024
Event Horizon Capital--1ParticipantJan 2024
TDK VenturesUnited StatesSan Jose, CA1ParticipantJan 2024
Hillhouse InvestmentSingaporeSingapore1ParticipantJan 2024

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Silicon Box Competitors

Silicon Box competitors include listed companies like Smarter Microelectronics, Arteris, Telsys and X-FAB, and private ones like Beiyi Semiconductor and Vital Thin Film Materials.

Public and private companies comparable to Silicon Box
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Smarter MicroelectronicsChinaChinaPublicly listed$120M($31M)$985M7.8x
ArterisUnited StatesUnited StatesPublicly listed$71M($27M)$1.1B11.0x
TelsysIsraelIsraelPublicly listed$136M$44M$1.1B-
X-FABBelgiumBelgiumPublicly listed$870M$177M$900M1.5x
Beiyi SemiconductorChinaShenzhenPrivate--$363M-
Vital Thin Film MaterialsChinaGuangzhouPrivate--$3.3B-

Silicon Box Public Comps

Silicon Box is still privately-owned, but its public comps include Chengdu RML Technology, discoverIE Group, Smarter Microelectronics, Towa, Sitronix, Daejoo Electronic, Foxsemicon, Jiangxi Lianchuang, Hanza and LianChuang Electronic.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Chengdu RML Technology$110M$29M6.5x-24.5x-
discoverIE Group$595M$100M1.9x1.9x11.5x11.2x
Smarter Microelectronics$120M($31M)7.7x7.8x(30.2x)(31.1x)
Towa$350M$66M2.7x2.5x14.5x12.5x
Sitronix$596M$89M1.3x-8.8x-
Daejoo Electronic$185M$34M6.3x4.6x34.0x34.2x
Foxsemicon$654M$115M1.5x1.3x8.5x9.4x
Jiangxi Lianchuang$498M$109M2.7x2.4x12.4x-

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Common questions about Silicon Box

When was Silicon Box founded?Silicon Box was founded in 2021.
Where is Silicon Box headquartered?Silicon Box is headquartered in Singapore, Singapore.
Is Silicon Box publicly listed?No, Silicon Box is a private, VC-backed company.
What is Silicon Box's valuation?Silicon Box was last valued at $1B in its Series B in August 2024.
How much funding has Silicon Box raised?Silicon Box has raised $508M across 4 funding rounds.
What was Silicon Box's last funding round?Silicon Box's last funding round was a $100M Series B in August 2024, led by Prysm Capital.
Who are Silicon Box's investors?Silicon Box's investors include Byung Joon Han, Weili Dai, BlueRun Ventures, Sehat Sutardja, Mike Han, Lam Capital, Tata Electronics, Grandfull Convergence Fund, Ignite Innovation Fund, Prasedium Capital and 7 others.
Which companies are comparable to Silicon Box?Companies comparable to Silicon Box include Smarter Microelectronics, Arteris, Telsys, X-FAB, Beiyi Semiconductor and Vital Thin Film Materials.

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