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SiBEAM

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Fabless semiconductor company, develops intelligent millimeter wave technologies for high-bandwidth services

Sunnyvale, United StatesFounded 2004Semiconductors
Valuation $25–50M Last recorded · 2011
Headcount <100 Current team size
Total funding $100–500M Disclosed equity funding
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About SiBEAM

SiBEAM, a pioneer in the development of high-speed wireless communication technology, was established in 2004. The company was founded by a team of prominent figures from the high-technology industry, including Dr. Chih-Kong Ken Lee, who brought his extensive background as a DARPA program manager, and Dr. Sohrab Emami, whose expertise stemmed from his work at Bell Labs and IBM Research. Their collective experience in advanced research and development within both governmental and corporate sectors provided a strong foundation for the company's focus on millimeter-wave (mmWave) solutions.

The firm specializes in designing and developing semiconductor chips and antenna arrays that operate in the 60 GHz frequency band, enabling multi-gigabit per second data transfer rates wirelessly over short distances. This technology, often referred to as WirelessHD or UltraGig, was engineered to eliminate the need for physical cables for high-definition video and data transmission. Key applications include connecting devices like Blu-ray players, set-top boxes, and gaming consoles to high-definition televisions without HDMI or DisplayPort cables.

SiBEAM's business model revolved around the design and sale of these specialized semiconductor solutions to original equipment manufacturers (OEMs) in the consumer electronics, mobile, and infrastructure markets. Its products were integrated into devices from major brands, offering consumers a seamless, high-fidelity wireless experience. The technology's ability to deliver uncompressed 1080p video streams with near-zero latency was a significant differentiator.

A major milestone in SiBEAM's journey occurred in 2011 when it was acquired by Silicon Image, a leading provider of wired connectivity solutions, for approximately $25.5 million in cash. This acquisition integrated SiBEAM's wireless expertise with Silicon Image's established presence in the consumer electronics market. Subsequently, in 2015, Lattice Semiconductor acquired Silicon Image, which included the SiBEAM portfolio. Under Lattice, the SiBEAM brand continued to represent the company's mmWave technology, expanding its application into areas like 5G infrastructure and smart city applications.

Source: Dealroom company data

At a glance

Founded
2004
Headquarters
Sunnyvale, United States
Sector
Semiconductors

Investors

3 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A1 investor entered at this stage

Series B and later2 investors entered at this stage

Team profiled 15 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 5 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
2 countries with
team presence
🇺🇸 United States66.7%
🇧🇪 Belgium33.3%
2 countries shown

Market sentiment

Posts on X, past 7 days

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Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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