These little-known chip stocks could be winners as SpaceX and Amazon make big satellite pushes
SpaceX’s Starlink and Amazon’s Project Kuiper are catalyzing one of the biggest new infrastructure build-outs in communications since the smartphone boom. Thousands of low-Earth-orbit satellites, laser crosslinks, multi-band gateways, and millions of electronically steered user terminals require specialized semiconductors: beamforming ICs, GaN power amplifiers, precision timing, radiation-tolerant compute, optical devices, and the materials and foundry capacity behind them. While headline exposure sits with the constellation operators and large RF names, a handful of smaller, under-the-radar chip and component companies are positioned to benefit as deployments scale through the decade.
Where the chip content sits in LEO networks
– Terminals and gateways: Ku/Ka-band phased-array antennas need dense beamformer ICs, LNAs/PAs (often GaN), RF switches, high-linearity converters, and tight timing/synchronization. Power electronics and thermal-aware packaging are critical.
– Spacecraft payloads: Radiation-tolerant FPGAs/SoCs, data converters, RF front-ends, DC-DC power, precision clocks. Newer buses use more commercial tech with screening, but space-grade parts still matter in key functions.
– Inter-satellite and space-to-ground optical links: High-reliability lasers, drivers, photodiodes, and photonics packaging.
– Materials and manufacturing: Compound semiconductor substrates (GaAs, InP), epiwafers (GaN-on-SiC, InP), RF-SOI and SiGe BiCMOS processes at specialty foundries.
Under-the-radar stocks with leverage to the LEO ramp
Note: The companies below are examples, not exhaustive. Exposure often spans both satellite payloads and the much larger ground segment.
– Sivers Semiconductors (Stockholm: SIVE; OTC: SVSSF)
What they do: mmWave/centimeter-wave beamforming RFICs and transceivers used in electronically steered antennas for satcom and backhaul.
Why it matters: Every flat-panel terminal or aero/maritime ESA can embed scores to hundreds of beamformer channels. As Kuiper and Starlink alternatives proliferate across enterprise, mobility, and government markets, demand for cost-effective beamformers should rise.
Key watch items: Design wins with leading ESA makers; volume terminal launches tied to Ku/Ka networks; execution on U.S. market expansion after prior acquisitions.
– SatixFy (NYSE: SATX)
What they do: Fabless provider of satellite modems/DSPs, digital beamforming and payload ASICs for ground and on-orbit applications.
Why it matters: As constellations adopt multi-beam, regenerative payloads and smarter terminals, custom satcom silicon becomes a differentiator on cost and efficiency.
Key watch items: Follow-through on partnerships and program awards; productization of next-gen beamformer/modem chips; liquidity and execution risk typical of early-stage public fabless firms.
– NanoXplore SA (Euronext Growth Paris: ALNXT)
What they do: Radiation-tolerant FPGAs/SoCs used in space avionics and payload processing.
Why it matters: LEO satellites still need rad-tolerant digital logic in key paths. Europe’s primes and institutional programs (e.g., IRIS²) are cultivating regional chip supply.
Key watch items: Design-ins with major primes and constellation programs; cadence of new device families and toolchains; production scaling.
– Mynaric (NASDAQ: MYNA)
What they do: Optical communication terminals enabling inter-satellite and space-to-ground laser links.
Why it matters: Laser crosslinks increase network capacity and reduce ground reliance; Starlink already uses them and other LEO programs are moving that direction. Each satellite may ship with multiple terminals.
Key watch items: Backlog tied to governmental LEO networks, manufacturing yield/throughput, and adoption by commercial constellations.
– IQE plc (LSE: IQE)
What they do: Epitaxial wafers for compound semiconductors, including GaN for RF power and InP/GaAs for photonics.
Why it matters: Beamforming PAs/LNAs and optical links depend on compound semis. IQE’s epi sits upstream of many RF and photonics chips, offering diversified exposure.
Key watch items: New GaN-on-SiC and InP program ramps; multi-year supply deals with RF and laser makers tied to satcom and backhaul; utilization recovery.
– AXT Inc. (NASDAQ: AXTI)
What they do: GaAs and InP substrates used for RF power devices and high-reliability lasers.
Why it matters: Substrates are foundational for the photonics and RF content in both terminals and optical crosslinks.
Key watch items: InP demand from laser customers; supply chain/geopolitical dynamics given manufacturing footprint; pricing/mix trends.
– Rakon (NZX: RAK)
What they do: High-reliability OCXO/TCXO frequency-control products for space and satcom, plus timing for telecom networks.
Why it matters: Precise, stable timing under temperature, vibration, and radiation is non-negotiable in satellite links and gateways. As LEO traffic grows, so does the installed base needing disciplined timing.
Key watch items: Design-wins in gateways, aero/maritime terminals, and space payloads; manufacturing lead times and qualification cycles.
– Navitas Semiconductor (NASDAQ: NVTS)
What they do: GaN power ICs for efficient power conversion.
Why it matters: User terminals, gateways, and data-center interconnects benefit from compact, efficient PSUs; GaN adoption continues to broaden. Select space and high-rel opportunities may emerge alongside robust ground demand.
Key watch items: Satcom PSU design-ins; competitive landscape vs. incumbents; gross margin trajectory as volumes scale.
– MACOM Technology Solutions (NASDAQ: MTSI)
What they do: RF/microwave components including GaN PAs, LNAs, and mmWave ICs for satcom and aerospace/defense.
Why it matters: Ku/Ka/E-band growth in backhaul and satcom requires linear, efficient RF front-ends in both terminals and infrastructure.
Key watch items: Mix of satcom/defense orders; mmWave portfolio traction; supply chain and packaging capacity.
– SiTime (NASDAQ: SITM)
What they do: Precision MEMS oscillators and timing solutions for communications, aerospace/defense, and data centers.
Why it matters: Beam steering, high-speed data converters, and coherent optics rely on low-jitter, resilient timing—especially in gateways and terrestrial nodes supporting LEO traffic.
Key watch items: Design-ins at network OEMs and satcom terminal makers; product roadmap for harsher environments; competitive dynamics vs. quartz solutions.
– Tower Semiconductor (NASDAQ: TSEM)
What they do: Specialty foundry services in RF SOI, SiGe BiCMOS, and other nodes used in beamformers and high-frequency RFICs.
Why it matters: Many ESA and satcom RFIC startups tape out on specialty processes rather than leading-edge digital nodes. Foundry access and capacity are strategic bottlenecks.
Key watch items: New RF customers in satcom; incremental capacity partnerships; ASPs and utilization across RF/analog lines.
– Mercury Systems (NASDAQ: MRCY)
What they do: High-reliability RF and mixed-signal modules and microelectronics, including space-grade components.
Why it matters: Government and commercial LEO programs often lean on trusted suppliers for screened, rugged RF and processing elements.
Key watch items: Program awards and backlog quality; margin recovery; execution on space-qualified product roadmaps.
How SpaceX and Amazon change the demand curve
– Volume and complexity: Starlink’s millions of terminals have proven there’s a mass-market hardware opportunity. Kuiper’s ramp adds a second large buyer ecosystem, prompting competition and second-sourcing across the stack. Each terminal’s RF front-end and beamforming array multiply chip content per unit relative to legacy parabolic dishes.
– New architectures: Inter-satellite laser links, E-band gateways, and software-defined payloads push demand for compound semiconductors, high-speed converters, and rad-tolerant compute—all benefitting niche suppliers.
– Direct-to-cell (NTN): If satellite-to-handset scales, RF filter and PA content in phones and baseband timing/sync requirements could rise. While larger incumbents dominate, small specialists may find niches in infrastructure or reference designs.
Risks to consider
– Vertical integration: SpaceX already designs much of its hardware; Amazon could follow in selected blocks, limiting third-party volume. The broader satcom market still offers room, but supplier lists can be tight.
– Qualification and lumpy orders: Space and high-rel programs entail long design cycles, strict screening, and uneven revenue cadence.
– Technology shifts: Rapid iteration in beamforming architectures, optical platforms, and on-orbit processing can favor a few winners and leave others stranded.
– Capital intensity and scale-up: Smaller fabs and photonics makers must execute on yields and throughput as orders move from prototypes to production.
What to watch next
– Kuiper production milestones and terminal vendor disclosures through 2025–2027.
– Starlink’s direct-to-cell progression and any knock-on demand signals in RF filters and timing.
– Government constellation awards (e.g., SDA tranches, Europe’s IRIS²) that typically specify radiation-tolerant components.
– Evidence of laser crosslink standardization and multi-vendor interoperability, a potential tide that lifts optical component suppliers.
Bottom line
The LEO build-out is not just a launch story—it is a semiconductor story. Beyond the usual large-cap RF and analog names, specialized chip and component vendors in beamforming, compound semis, timing, space-grade compute, and photonics could see multi-year tailwinds as SpaceX and Amazon expand. For investors who can underwrite technology and program risk, these lesser-known suppliers offer targeted exposure to one of the decade’s most compelling communications upgrades.
Disclaimer: This article is for informational purposes only and is not investment advice. Always do your own research and consider your risk tolerance before investing.
