Silentium
Silentium is an Israeli deep-technology company that develops software-defined Active Noise Control (ANC) and acoustic management solutions for automotive, transportation, home appliance, industrial, and IT infrastructure OEMs, delivering up to 90% noise reduction via adaptive algorithms and OEM-embedded integration.
- Company typePrivate
- Founded1997
- HeadquartersRehovot, Israel
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What Silentium does
Silentium Ltd. is an Israel-based deep-technology company that has developed a proprietary, software-defined Active Acoustic Management platform for active noise control (ANC) across automotive, transportation, home appliance, industrial, and IT infrastructure applications. Its technology uses adaptive algorithms, distributed microphones/accelerometers, and loudspeakers to generate anti-phase sound in real time, reducing unwanted noise by up to 90% across broadband frequencies (up to 1KHz for in-cabin automotive applications and up to 1800Hz for at-the-source solutions). Core product lines include Quiet Bubble™ (personalized zones of silence), Personal Sound Bubble (individualized audio zones), Active Road Noise Cancellation (ARNC) for vehicles, AcoustiRACK™ ACTIVE (server cabinet noise reduction), and developer toolkits (SCDK™, QBDT™) for OEM integration.
The company monetizes primarily through software licensing (algorithm and software library licenses to OEMs and DSP chip vendors Cadence, CEVA, and AKM), hardware sales (AcoustiRACK rack-mount cabinets), and end-to-end turnkey solutions that bundle proof-of-concept, design, and integration services. Pricing is project-based and not publicly disclosed. Silentium serves enterprise customers via direct field sales (e.g., Jaguar Land Rover for the 5th generation Range Rover, China High Speed Rail for VIP seat Quiet Bubbles), OEM-embedded integration (AKM automotive chips, Cadence Tensilica HiFi DSPs, CEVA-TeakLite DSPs), and regional distribution (Laces in Mexico for IT/data center products). Founded in 1997 with commercial activity from 2005, the company is headquartered in Ness Ziona, Israel, with a wholly-owned China subsidiary in Shanghai, and has raised approximately $63M in cumulative funding through a Series D extension in June 2021.
Silentium firmographics
Firmographics- Name
- Silentium
- Legal name
- Silentium Ltd.
- Website
- https://silentium.com
- Company type
- Private
- Founded year
- 1997
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Silentium is an Israeli deep-technology company that develops software-defined Active Noise Control (ANC) and acoustic management solutions for automotive, transportation, home appliance, industrial, and IT infrastructure OEMs, delivering up to 90% noise reduction via adaptive algorithms and OEM-embedded integration.
- Ownership category
- akta.pro rank
Silentium industry classification
Industry- Product category
- Active Noise Cancellation Technology
- NAICS
- Audio and Video Equipment Manufacturing (33431), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)
- SIC
- Auto Controls For Regulating Residential & Comml Environments (3822), Communications Equipment, Nec (3669)
- akta.pro primary industry
- Speech Enhancement & Noise Suppression (AEC/NR) (HDAAAFAG)
- akta.pro secondary industries
- Pro Audio Equipment (Mics, Interfaces, Mixers, Studio Monitors) (MPAIAJAB), Noise & Vibration Control for HVAC (Silencers/Isolation) (IMADANAL), Audio & Voice Mixed-Signal ICs (Codecs/Amplifiers) (HDAHAIAG), Studio / Pro Monitoring Headphones & Reference Speakers (CRACANAK)
Keywords
Where Silentium is headquartered
LocationHeadquarters
- HQ city
- Rehovot
- HQ country
- Israel
- HQ region
- Middle East
Offices2 records
Markets served
Silentium business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Software Licensing: Silentium licenses its Active Noise Control software algorithms and software libraries to manufacturers for integration into their products. This includes DIY development kits (SCDK, QBDT) and validated software solutions for automotive, appliance, and industrial applications.
- Hardware Solutions: Sale of complete hardware solutions including AcoustiRACK ACTIVE (ARA) rack-mount cabinets with up to 30dB(A) noise reduction, 8KW heat dissipation, and dust protection for IT equipment.
- End-to-End Solutions: Turnkey solutions covering proof-of-concept, design, software development, and hardware construction for customers requiring complete ANC product development.
- Technology Partnership Licensing: Licensing technology to strategic partners like Cadence, CEVA, and AKM for incorporation into their DSP chips and audio processors for distribution to their customer bases worldwide.
Go-to-market motion3 records
Distribution channels4 records
Marketing channels4 records
Silentium product offering
Product offeringCore offering
Silentium develops a software-defined Active Acoustic Management platform that combines adaptive Active Noise Control (ANC) algorithms with intelligent real-time sound management. The company delivers noise reduction solutions for automotive OEMs, transportation operators, home appliance manufacturers, and IT infrastructure providers through software libraries, developer kits (SCDK, QBDT), OEM/embedded integrations with DSP partners, and turnkey hardware products such as the AcoustiRACK ACTIVE.
Product overview
Silentium's product portfolio is organized around a core software-defined Active Acoustic Management platform that combines adaptive ANC with intelligent real-time sound management. The platform powers two primary product lines: Quiet Bubble™ (personalized zones of silence) and At-the-Source (point-to-zone noise cancellation), both offered through tiered delivery models—DIY development kits (SCDK™ and QBDT™), software-only library integration, and end-to-end turnkey solutions. A third product line, the AcoustiRACK™ ACTIVE (ARA™), addresses IT infrastructure noise. Specialized automotive variants include Active Road Noise Cancellation (ARNC) and the Personal Sound Bubble (PSB) for in-cabin audio zoning. All solutions use adaptive algorithms to generate anti-noise, reducing sound by up to 90%, and are optimized for automotive, transportation, home appliance, industrial, and IT applications.
Differentiator
Problem solved
Functional benefit
Brands
- Quiet Bubble™: Personal zone of quiet technology that creates individual quiet spaces around a person's head, reducing unwanted noise
- Personal Sound Bubble™
- Quiet at-the-Source
- AcoustiRACK™ ACTIVE (ARA™)
- SCDK™ (Sound Cancellation Developer Kit)
- QBDT™ (Quiet Bubble Developer Tool)
- Active Road Noise Cancellation (ARNC)
- AcustiFusion
Products and services
- Quiet Bubble™
Quantifiable outcome
- Up to 90% noise reduction across the entire audible spectrum
- +5 more outcomes
Companies that use Silentium
Customer profileNamed customers8 records
Segments6 records
Ideal customer profiles5 records
Silentium technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability2 records
Feature6 records
Silentium partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core and minor.
- Cadence Design SystemscorePartnership to deliver advanced in-car noise cancellation using Silentium's Quiet Bubble technology on Cadence Tensilica HiFi DSPs. The integration aims to enhance in-cabin comfort and support the evolving automotive environment, including electric and autonomous vehicles.
- AKM (Asahi Kasei Microdevices)coreAKM collaborated with Silentium to launch Low-Latency Active Road Noise Cancellation (ARNC) Solution for automotive. AKM's dedicated chips for the automotive industry are embedded with Silentium's Active Acoustics software as a ready-to-use off-the-shelf solution for automakers.
- Laces Network ProductsminorPartnership to produce and deliver The Silent-Pro range (AcoustiRACK products with Silentium ANC technology) in Mexico. Laces is a leading producer of network, server datacenter cabinets, racks and high-end network infrastructure solutions.
- CEVAcorePartnership to deliver low power active noise cancellation solution for headsets and hearables based on CEVA-TeakLite-4 implementation of Silentium's Broadband P2P ANC technology. Supports feedforward, feedback, or hybrid systems for various audio applications.
- NETRACKminorStrategic partnership to embed Silentium's noise reduction solutions into NETRACK's rack mount cabinets (AcoustiRACK ACTIVE). Results in mitigating noise levels up to 30 dB(A) with 8KW heat dissipation and dust protection for servers and networking equipment.
- SNCF (French Railway)minorEcoMotion & SNCF joint hackathon collaboration. Silentium was selected among 10 companies with existing technologies and worked with 11 SNCF representatives to adapt Quiet Bubble technology for railway journey experience enhancement.
- LG ElectronicsminorKorean automotive delegation representing LG Electronics participated in Korea-Israel Future Smart Mobility Seminar, exploring Silentium's Quiet Bubble technology for mobility applications.
- SKminorKorean automotive delegation representing SK explored Silentium's active noise reduction technology for potential automotive integration.
- John LewisminorPartnership to create 'The Quiet Chair' - the world's first Active Noise Reduction armchair. Combines Quiet Mark certification with Silentium's ANC technology to create a 'bubble of peace' for consumers.
- Quiet MarkminorPartnership for the Quiet Chair project, providing the Quiet Mark certification which recognizes excellence in quiet product design.
Scale indicators4 records
Recent moves7 records
Expansion highlights5 records
Silentium competitors and assessment
Company assessmentDirect peers
- Bose Corporation: Global leader in active noise cancellation for both consumer headphones and automotive OEM audio systems. Directly comparable to Silentium in automotive ANC and personal/listening-zone noise reduction.
- Harman International (Samsung): Supplies integrated in-cabin audio and ANC solutions to most major automotive OEMs. Directly competes with Silentium's ARNC and Quiet Bubble offerings within automotive infotainment platforms.
- Sennheiser: Premium headphone and pro-audio manufacturer with significant ANC IP. Comparable to Silentium in pro-audio and hearables ANC licensing, and competes in personal audio zoning.
- Dirac Research: Swedish audio software company providing digital sound optimization for automotive, headphones, and AR/VR. Closely comparable business model to Silentium with software-defined automotive audio differentiation.
Broad incumbents
- Apple: Dominant consumer ANC player via AirPods Pro and Beats. Represents both a potential partner and a threat in the consumer/hearables ANC layer that Silentium's CEVA-enabled technology targets.
- Sony: Leader in consumer headphone ANC (WH-1000XM series) with proprietary on-device algorithms. Comparable in hearables ANC; broader portfolio creates incumbency advantage in retail distribution.
- Analog Devices: Provides audio DSPs and A2B bus solutions to automotive OEMs. Comparable in DSP-based automotive audio signal processing and partly overlapping with Cadence/CEVA ecosystem in which Silentium operates.
- Dolby Laboratories: Licenses premium audio technologies (Atmos, Dialogue Intelligence) to automotive OEMs and consumer device makers. Competes for the same automotive audio software-licensing budget as Silentium.
Emerging players
- Cirrus Logic: Specialist in low-power audio DSPs and codecs used in headphones and smartphones. Overlaps with Silentium's hearables/headphones channel via DSP platforms and could partner or compete for ANC IP licensing.
- Resonado: Audio technology company developing novel speaker architectures and DSP solutions for automotive and consumer markets. Comparable as a smaller, software/hardware audio specialist pursuing OEM design wins.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Silentium social profiles
Digital presenceSilentium compliance and trust
Trust signalCompliance1 record
Silentium financial estimates
Financial estimateRevenue estimate
Valuation estimate
Silentium leadership team
Management profileNumber of profiles
Profiles6 records
Silentium subsidiaries and ownership
Company hierarchySubsidiaries1 record
Silentium funding detail
Funding detailFunding overview
Funding rounds8 records
Investors8 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Silentium M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Silentium
What does Silentium do?
Silentium develops a software-defined Active Acoustic Management platform that combines adaptive Active Noise Control (ANC) algorithms with intelligent real-time sound management. The company delivers noise reduction solutions for automotive OEMs, transportation operators, home appliance manufacturers, and IT infrastructure providers through software libraries, developer kits (SCDK, QBDT), OEM/embedded integrations with DSP partners, and turnkey hardware products such as the AcoustiRACK ACTIVE.
Is Silentium a public or private company?
Silentium is a private company. It is classified as venture growth investor backed and is currently operating.
When was Silentium founded?
Silentium was founded in 1997. It employs 51 to 100 people.
Where is Silentium based?
Silentium is headquartered in Rehovot, Israel, in the Middle East region.
How does Silentium make money?
Four revenue lines are on record. Software Licensing is the primary driver. The others are hardware Solutions, end-to-End Solutions and technology Partnership Licensing.
Who are Silentium's main competitors?
Direct peers on record are Bose Corporation, Harman International (Samsung), Sennheiser and Dirac Research. Broad incumbents are Apple, Sony, Analog Devices and Dolby Laboratories. Emerging players are Cirrus Logic and Resonado.
Does Silentium have an API?
No public API is recorded for Silentium.
What industry is Silentium in?
Silentium's product category is Active Noise Cancellation Technology. Its primary akta.pro industry code is HDAAAFAG, Speech Enhancement & Noise Suppression (AEC/NR), with a secondary code of MPAIAJAB, Pro Audio Equipment (Mics, Interfaces, Mixers, Studio Monitors). Its NAICS code is 33431 and its SIC code is 3822.