Qulsar
Qulsar provides IEEE 1588 PTP precision time synchronization software, sensor fusion solutions, and Time-as-a-Service for 5G mobile infrastructure, industrial IoT, autonomous vehicles, smart grid, and datacenter operators globally.
- Company typePrivate
- Founded2014
- HeadquartersSan Jose, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Qulsar does
Qulsar is a privately held precision time synchronization company headquartered in San Jose, California with an R&D center in Kista, Sweden. The company develops IEEE 1588 Precision Time Protocol (PTP) software, servo algorithms, and timing reference products that deliver sub-microsecond synchronization across packet-based networks. Its core technical differentiator is an industry-leading PTP servo with adaptive time recovery achieving better than 1.1 μs for TDD applications and frequency alignment better than 15 ppb, designed to operate on networks without full on-path PTP support and in GNSS-challenged environments.
Qulsar's portfolio centers on QNgine-S, a software-only IEEE 1588-2008 PTP timing solution integrated with Qualcomm FSM9xxx and Intel Transcede baseband platforms, and QSync TSaaS, a Time-as-a-Service offering for datacenters. The company historically offered hardware systems including the Qg 2 Multi-Sync Gateway (capable of serving 450 unicast slaves at full packet rate), Quki-w, Qg-i, and the M88 Managed Clock Engine co-developed with Silicon Labs; however, Silicon Labs acquired the embedded software and module business in October 2019 and Viavi Solutions acquired the Systems product line (Qg 2 and related IP) in June 2023. Following these divestitures, Qulsar retained its system-level time synchronization and real-time sensor fusion solutions business.
Revenue is generated through software licensing (QNgine-S), support and maintenance contracts, professional services (custom design engineering and lab testing), and QSync TSaaS subscription. Pricing is quote-based and not publicly disclosed. Qulsar sells through direct enterprise sales and a small set of technology integration partners (Intel Network Builders, Qualcomm, Cavium), targeting mobile network operators, 5G infrastructure providers, semiconductor OEMs, defense contractors, datacenter operators, and industrial IoT customers. Visible customers include Intel, NVIDIA, Mavenir, Radisys, Equinix, Lockheed Martin, MITRE, Dell, NEC, Altice, VMware, Amazon, and Microsoft. The company holds ISO 9001 and ISO 14001 supplier compliance certifications, GDPR-compliant privacy practices, and a conflict minerals policy aligned with SEC rules.
Qulsar firmographics
Firmographics- Name
- Qulsar
- Legal name
- Qulsar, Inc.
- Website
- https://qulsar.com
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Qulsar provides IEEE 1588 PTP precision time synchronization software, sensor fusion solutions, and Time-as-a-Service for 5G mobile infrastructure, industrial IoT, autonomous vehicles, smart grid, and datacenter operators globally.
- Ownership category
- akta.pro rank
Qulsar industry classification
Industry- Product category
- Precision Time Synchronization / Network Timing Solutions
- NAICS
- Other Communications Equipment Manufacturing (334290), Communications Equipment Manufacturing (3342)
- SIC
- Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- Grandmaster Clocks (PTP IEEE 1588) (HDAFAKAB)
- akta.pro secondary industries
- Boundary Clocks & Transparent Clocks (HDAFAKAC), Time Distribution & Signal Conversion (1PPS/10MHz/IRIG-B/ToD) (HDAFAKAH)
Keywords
Where Qulsar is headquartered
LocationHeadquarters
- HQ city
- San Jose
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Qulsar business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Hardware Products: Sale of precision timing hardware including Qg 2 Multi-Sync Gateway, Quki-w, Qg-i systems, and M88 Managed Clock Engine modules. One-time hardware revenue with potential for follow-on support contracts.
- Software Licensing: Licensing of PTP software solutions including QNgine-S for integration into third-party platforms (Qualcomm FSM, Intel Transcede). Recurring licensing model with board support packages and development tools.
- Support and Maintenance: Software and support maintenance services for deployed products. Annual maintenance contracts providing technical support, software updates, and access to documentation.
- Professional Services: Custom design engineering services to tailor PTP solutions to variant architectures and platforms, plus lab testing services to validate PTP performance.
Go-to-market motion3 records
Distribution channels3 records
Marketing channels6 records
Qulsar product offering
Product offeringCore offering
Qulsar provides end-to-end precision time synchronization solutions built on the IEEE 1588 Precision Time Protocol (PTP) for 5G mobile infrastructure, industrial IoT, smart power grid, autonomous vehicles, and datacenters. Its current commercial offerings center on PTP software (QNgine-S for Qualcomm platforms), cloud-based Time as a Service (QSync TSaaS), and custom engineering services for system-level time synchronization and real-time sensor fusion solutions.
Product overview
Qulsar is a precision time synchronization solutions provider headquartered in San Jose, California with R&D in Kista, Sweden. The company's current portfolio centers on software-based timing solutions and services: QNgine-S (IEEE 1588 PTP software for Qualcomm FSM platforms), QSync TSaaS (Time as a Service for datacenters), and Services and Custom Solutions (engineering design services). Previously, Qulsar offered hardware systems (Qg 2 Multi-Sync Gateway, Quki-w, Qg-i) and embedded modules (M88 Managed Clock Engine, IEEE 1588 modules) which were sold to Viavi Solutions (Systems product line in 2023) and Silicon Labs (IEEE 1588 software and modules in 2019). The company targets 5G mobile infrastructure, Industrial IoT, autonomous vehicles, smart power grid, and datacenters with precision timing and synchronization solutions.
Differentiator
Problem solved
Functional benefit
Brands
- QNgine: IEEE 1588 PTP software engine for precision time synchronization
- M88 Managed Clock Engine
- Qg 2
- Quki-w
- Qg-i
- QSync TSaaS
Products and services
- QNgine-S Software-only IEEE 1588-2008 PTP solution for the Qualcomm FSM9xxx platform, providing time and frequency recovery from a remote PTP grandmaster without specialized hardware. Uses adaptive algorithms achieving better than 1.1 μs for TDD applications with frequency alignment better than 15 ppb. Designed for small cell vendors deploying LTE-TDD and LTE-A in GNSS-challenged environments.
- QSync TSaaS (Time as a Service) Cloud-based Time as a Service solution for datacenters, providing precision time synchronization delivered as a managed cloud service.
- Services and Custom Solutions Specialized design services and custom engineering solutions for mobile networks, IoT, and automotive industries, including lab testing services to validate PTP performance against customer architectures.
Quantifiable outcome
- Qg 2 handles 450 unicast slaves at full packet rate, redefining industry performance in edge grand master class
- +2 more outcomes
Companies that use Qulsar
Customer profileNamed customers13 records
Segments6 records
Ideal customer profiles6 records
Qulsar technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature6 records
Qulsar partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and minor.
- Viavi SolutionscoreViavi Solutions acquired the Qulsar Systems product line (Qg 2 and related IP) in June 2023. The technology extends Viavi's timing market offering. Qulsar retained its system-level time synchronization and sensor fusion solutions business.
- OpenPNTminorQulsar joined OpenPNT as a founding member in December 2020, participating in industry alliance focused on positioning, navigation, and timing solutions.
- O-RAN AlliancecoreQulsar featured as ORAN white paper partner providing O-RAN compliant O-RU platform (hardware and software) for pico/micro coverage deployments. Collaboration with Radisys on open radio unit solutions.
- Silicon LabscoreSilicon Labs acquired all IEEE 1588 precision time protocol software and module assets from Qulsar in October 2019. The acquisition included PTP master, gateway, boundary clocks, slave clocks, servo and stack software, development tools and board support packages for applications spanning small cells, optical transport, smart grid, automotive and 5G wireless infrastructure.
- Silicon Labs (M88 Joint Solution)coreJoint development of M88 Managed Clock Engine combining Qulsar's 1588 PTP packet gateway clock with Silicon Labs' Si5348 network synchronizer. Qulsar provided industry-leading servo algorithm; Silicon Labs provided ultra-low jitter clock generation.
- Intel Network BuilderscoreQulsar's IEEE 1588 PTP QNgine SW powers precision sync for LTE on Intel's Transcede T2K/T3K platform for small cells and C-RAN. Featured partner on Intel Network Builders ecosystem.
- QualcommcoreQulsar's QNgine-S PTP software made available on Qualcomm FSM9xxx platform for small cell designs, enabling operators to deploy small cells cost effectively in GNSS-challenged environments.
Scale indicators4 records
Recent moves8 records
Expansion highlights5 records
Qulsar competitors and assessment
Company assessmentMarket position
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Qulsar social profiles
Digital presenceQulsar compliance and trust
Trust signalCompliance4 records
Qulsar financial estimates
Financial estimateRevenue estimate
Valuation estimate
Qulsar leadership team
Management profileNumber of profiles
Profiles6 records
Qulsar funding detail
Funding detailFunding overview
Funding rounds5 records
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Qulsar 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 Qulsar
What does Qulsar do?
Qulsar provides end-to-end precision time synchronization solutions built on the IEEE 1588 Precision Time Protocol (PTP) for 5G mobile infrastructure, industrial IoT, smart power grid, autonomous vehicles, and datacenters. Its current commercial offerings center on PTP software (QNgine-S for Qualcomm platforms), cloud-based Time as a Service (QSync TSaaS), and custom engineering services for system-level time synchronization and real-time sensor fusion solutions.
Is Qulsar a public or private company?
Qulsar is a private company. It is classified as venture growth investor backed and is currently operating.
When was Qulsar founded?
Qulsar was founded in 2014. It employs 11 to 50 people.
Where is Qulsar based?
Qulsar is headquartered in San Jose, United States, in the North America region.
How does Qulsar make money?
Four revenue lines are on record. Hardware Products are the primary driver. The others are software Licensing, support and Maintenance and professional Services.
Does Qulsar have an API?
No public API is recorded for Qulsar.
What industry is Qulsar in?
Qulsar's product category is Precision Time Synchronization / Network Timing Solutions. Its primary akta.pro industry code is HDAFAKAB, Grandmaster Clocks (PTP IEEE 1588), with a secondary code of HDAFAKAC, Boundary Clocks & Transparent Clocks. Its NAICS code is 334290 and its SIC code is 3825.