Nextek
- Company typePrivate
- Founded1986
- HeadquartersNorth Billerica, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
Nextek firmographics
Firmographics- Name
- Nextek
- Legal name
- NexTek LLC
- Website
- https://nextek.com
- Company type
- Private
- Founded year
- 1986
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Ownership category
- akta.pro rank
Nextek industry classification
Industry- Product category
- Electronic Components
- NAICS
- Electrical Equipment Manufacturing (33531), Electrical Equipment Manufacturing (3353)
- SIC
- Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electrical Industrial Apparatus (3620)
- akta.pro primary industry
- TVS/ESD & Surge Protection Devices (HDAHAHAE)
- akta.pro secondary industries
- EMI/EMC & Filtering Components (Common-mode chokes, filters, shielding materials) (IMAGAJAN), Industrial Power & Energy Electronics Manufacturing Services (UPS, converters, inverters, chargers) (IMAGAGAI), Ruggedized/Harsh-Environment Electronics Manufacturing (IP-rated, shock/vibration, wide-temp) (IMAGAGAF)
Keywords
Where Nextek is headquartered
LocationHeadquarters
- HQ city
- North Billerica
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Nextek business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- RF Surge Arrestors: Coaxial surge protectors including DCB, FPD, FPH, FPL, FPN, PTC, PTI, PTR, QSS, QWS series for lightning, EMP, and ESD protection across RF applications.
- High Current EMI/EMC Filters: Feedthrough filters (HPR, HPR-E, HCP, HCS, FSF series) providing EMI/RFI filtering for high current power lines from 35A to 400A+ applications.
- Power/LAN Protection: AC line arrestors (ACL), DC line arrestors (DCL), and data line protectors (DLP) for surge protection on power and data transmission lines.
- Coaxial RF Solutions: Adapters (ADP), band pass filters (BPF), and test cables (EXTF ExTreme Flex) for system implementation and test applications.
- Custom Design Solutions: Customized solutions for coaxial surge protection and high current filtering applications, leveraging 30+ years of engineering experience for application-specific requirements.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Request a Quote |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels4 records
Nextek product offering
Product offeringCore offering
NexTek designs, engineers, and manufactures RF surge arrestors, high-current EMI/EMC feedthrough filters, and power/LAN surge protectors for protection against lightning, EMP, ESD, and electromagnetic interference. The company serves defense, aerospace, telecommunications, medical, energy, and industrial markets with standardized product families as well as custom EMC solutions designed and built at its North Billerica, MA facility.
Product overview
NexTek is a hardware company specializing in RF surge protection and EMI/EMC filtering solutions. The product portfolio is organized into five main categories: (1) RF Surge Arrestors including DCB DC Block, FPD/FPL/FPN/FPH Fine Multi-Stage Protectors for different threat levels (DO-160, Lightning, NEMP, HEMP), PTC/PTI/PTR Gas Discharge Tube designs, and QSS/QWS Quarter-Wavelength Stubs; (2) High Current EMI/EMC Filters including FSF Failsafe, HCP Pi, HCS Pi Suppressor, and HPR/HPR-E Feedthrough Filters rated from 35A to 400A+; (3) Power/LAN Protection including ACL AC Line, DCL DC Line, and DLP Ethernet/Data Protectors; (4) Coaxial RF Solutions including ADP Adaptors, BPF Band Pass Filters, and EXTF ExTreme Flex Test Cables; and (5) Accessories including Replacement GDTs, Testing Accessories, Grounding Accessories, and PVT-HH Handheld Voltage Testers. Products are designed, engineered, and manufactured at the North Billerica, MA facility.
Differentiator
Problem solved
Functional benefit
Brands
- ExTreme Flex: 18GHz test cables with SMA and/or N-Type connectors up to four feet in length, designed for testing sensitive RF electrical components.
Products and services
- DCB - DC Block Protectors Broadband surge protection devices with integrated capacitor-based shunt design that blocks DC signals while providing lightning, ESD, and EMP protection for receive-only RF paths and DC-sensitive front ends.
- FPD - Fine Multi-Stage Protector (DO-160) Advanced multistage coaxial surge protector designed for RTCA/DO-160G Section 22 compliance, SAE ARP5416, and MIL-STD-461 CS117. Handles current levels up to 2000A and voltages up to 3200V with ultra-low let-through energy under 60V, intended for aviation and military avionics applications.
- FPH - Fine Multi-Stage Protector (HEMP) High-Altitude Electromagnetic Pulse (HEMP) and EMP protection meeting MIL-STD-188-125-1/2, MIL-STD-461, and MIL-STD-464 standards. Ultra-low let-through energy under 5V with RF performance up to 18 GHz, intended for hardened military and critical infrastructure facilities.
- FPL - Fine Multistage Protector (Lightning) Fast-response multistage arrestors for sensitive equipment protection including GPS receivers, providing exceptional response and energy limitation for lightning, EMP, and ESD threats.
- FPN - Fine Protection (NEMP) Fast-response RF arrestors for protection against NEMP, ESD, HEMP, HIRF, and IEMI threats with ultra-fast response times, low insertion loss, and repeatable protection performance. Normally restricted to domestic United States customers due to export controls.
- PTC - Fixed Gas Discharge Tube Arrestors Wideband protection using fixed GDT technology providing DC pass-through operation with excellent RF performance from DC to beyond 12 GHz. Available with N-Type, TNC, SMA, BNC, F-Type, and MMCX connectors for telecom and wireless infrastructure.
- PTI - DC Blocking + GDT Arrestor Integrated design combining precision high-pass capacitor and gas discharge tube for RF-only signal paths. Provides DC blocking while delivering robust transient protection for receive-path and DC-sensitive RF circuits, with weatherized variants available for outdoor installations.
- PTR - Replaceable Gas Discharge Tube Arrestors Single-stage GDT arrestors with field-replaceable cartridge for long-term value and serviceability. Maintains wideband performance across DC to 3.2 GHz with multiple connector options including N-Type, TNC, SMA, BNC, UHF, and 7/16 DIN.
- QSS - Quarter-Wavelength Shorted Stub Patented stubless architecture providing instantaneous response time with in-line design. Frequency range 0.300-6 GHz with always-on short circuit to ground for lightning, ESD, and EMP protection in compact, space-constrained installations.
- QWS - Quarter-Wavelength Stub Always-on protection for high-frequency RF systems using quarter-wavelength stub design to short transient events to ground. Maintenance-free with no components to wear out, covering frequencies from 2.2 GHz to 18 GHz.
- FSF - Failsafe Filter Dual configured capacitor circuit providing dielectric redundancy and immunity from failure. Designed to manage or prevent random failures while in operation with abuse-tolerant internal design for safety-critical power filtering applications.
- HCP - High Current Pi Filter 200A feedthrough Pi capacitor filters for commercial, military, and space applications. Two stages of filtering with series inductor providing maximum filtering performance at lower frequencies.
- HCS - High Current Pi Suppressor Pi style filter with 2 stages of filtering and series inductor separation. Available with diode-based transient voltage suppression for AC or DC voltage ratings.
- HPR - High Current Feedthrough Filters High current EMI/RFI filters designed for demanding applications from 35A to 400A+ RMS. Utilize advanced design principles with patented capacitor technology for unmatched toughness and reliability within an ultra-compact package, built to withstand harsh shock, vibration, and temperature requirements.
- HPR E-Series - Extended Burn-In Filters Ruggedized DC filters designed for high vibration, high altitude, and extreme environments. Undergo 96-Hr Burn-In Cycle with MIL-C-49467 Group A qualification testing for mission-critical applications.
- ACL - AC Line Arrestors Alternating current line filters and surge suppressors protecting electrical equipment from transient spikes and surges. Available in single phase and three-phase, 120VAC and 240VAC ratings for industrial, commercial, and military power systems.
- DCL - DC Line Arrestors Direct current line filters and surge suppressors for DC power applications providing protection from transient spikes and surges. Available in 12, 24, 48, and 60 VDC ratings for telecom, industrial, and renewable energy systems.
- DLP - Ethernet/Data Protectors Ethernet and data surge suppressors protecting indoor and outdoor Ethernet devices from ESD and line surges. Support PoE and non-PoE applications with connection speeds up to 1 Gbps.
- BPF - Band Pass Filters High-performance band pass filters designed for Positive Train Control networks and systems with co-located RF transmitters and receivers. Provides sharp insertion loss cut-off to prevent unwanted interference.
- EXTF - ExTreme Flex Test Cables 18GHz test cables with SMA and/or N-Type connectors up to four feet in length. Extremely flexible and durable coaxial test cables maintaining RF stability and isolation throughout testing of sensitive RF electrical components.
- Custom Design Solutions Customized solutions for coaxial surge protection and high current filtering applications, leveraging 30+ years of engineering experience to design and produce application-specific EMC solutions when standard products do not meet customer requirements.
Quantifiable outcome
- Direct lightning strike protection ratings exceeding 100,000 amps on select models
- +3 more outcomes
Companies that use Nextek
Customer profileNamed customers4 records
Segments9 records
Ideal customer profiles6 records
Nextek technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Nextek partnerships and signals
Strategic signalPartnerships
33 partnerships are on record, tiered core and minor.
- Electrade GmbHcoreMaster EU distributor serving Germany and all customers throughout the European Union. Provides excellent service and support for standard products and custom designed solutions with extremely fast response times.
- East Coast MicrowavecoreNationwide domestic distributor and franchised partner celebrating 20 years as NexTek distributor. Serves customers across Defense, Aerospace, Telecommunications, Transportation, Medical, Energy and EV markets.
- Digi-Key ElectronicscoreMajor electronic components distributor providing broad reach for NexTek products to customers worldwide.
- Alliance CorporationminorNationwide domestic distributor serving Canada and US customers.
- Lightning Power MühendislikminorDistributor serving Turkey with NexTek lightning protection products. Testimonial indicates long-term partnership with 'honesty, fast response, experience and quality'.
- Belco SrlminorItalian distribution partner serving Italy.
- Globec LimitedminorUK distribution partner serving United Kingdom.
- Altaix ElectrónicaminorDistribution partner serving Spain and Portugal.
- NextWaveminorIsraeli distribution partner.
- Powell ElectronicsminorNationwide domestic distributor serving US customers.
- Talley Inc.minorNationwide domestic distributor serving US customers in communications and wireless sectors.
- VersysminorFrench distribution partner.
- Conorth Technologies Co., Ltd.minorChinese distribution partner serving China.
- Merlinhawk Aerospace Pvt. Ltd.minorIndian distribution partner specializing in aerospace sector.
- New Tech VentureminorSoutheast Asia distribution partner serving Singapore and surrounding region.
- RFiber SolutionsminorSouth African distribution partner.
- Mainsail Mercantile, Ltd.minorSouth Korean distribution partner.
- Amtele CommunicationminorSwedish distribution partner.
- RF Cables CanadaminorCanadian distribution partner.
- RojoneminorAustralian and New Zealand distribution partner.
- TELSSAminorCaribbean and Central American distribution partner.
- TeleprominorDistribution partner serving Turkey.
- BLITZ SHIELD, S.A. DE C.V.minorMexican distribution partner.
- S&S Technology, Inc.minorCalifornia domestic OEM sales representative.
- EPI Technologies, Inc.minorMidwest US domestic OEM sales representative.
- W.A. Hendrickson Co.minorNew England domestic OEM sales representative.
- The Sales GroupminorWestern US, Alaska, and Hawaii domestic OEM sales representative.
- The Cambridge GroupminorNorthern and Southern Midwest US domestic OEM sales representative.
- Santa Fe DistributingminorNationwide domestic distributor.
- TelExpressminorNationwide domestic distributor.
- DX EngineeringminorNationwide domestic distributor serving ham radio and commercial customers.
- Primus ElectronicsminorNationwide domestic distributor.
- Technical Equipment Distributors, Inc. (TEDI)minorNationwide domestic distributor specializing in RF products.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Nextek competitors and assessment
Company assessmentBroad incumbents
- Bourns: Bourns is a broad-line circuit protection and passive component manufacturer with strong positions in TVS diodes, GDTs, and surge protective devices across industrial, telecom, and automotive markets. They are a larger incumbent with overlapping technology in transient voltage protection but a much broader catalog than NexTek's specialty focus.
- TDK (EPCOS):
Direct peers
- PolyPhaser / Transtector: PolyPhaser (now part of Transtector/INFINITE Electronics) is one of the closest direct competitors to NexTek, offering coaxial RF surge protectors, gas discharge tube arrestors, and lightning protection for telecom, defense, and wireless infrastructure applications. They overlap heavily on product category, target customers, and standards compliance.
- Huber+Suhner: Huber+Suhner manufactures RF surge protectors (quarter-wave stubs, GDT-based arrestors) and EMI/RFI filtering components for telecom, railway, and defense markets. Their SENCITY and lightning protection product lines directly compete with NexTek's QSS, QWS, and PTC series in cellular and transportation deployments.
- Times Microwave Systems: Times Microwave Systems (an Amphenol company) produces coaxial cables, RF connectors, and surge protection products for aerospace, defense, and telecom. They overlap with NexTek on coaxial RF solutions and lightning/surge protection, especially in mission-critical applications.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Nextek social profiles
Digital presenceNextek compliance and trust
Trust signalCompliance5 records
Nextek financial estimates
Financial estimateRevenue estimate
Valuation estimate
Nextek leadership team
Management profileNumber of profiles
Profiles6 records
Nextek funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Nextek 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 Nextek
What does Nextek do?
NexTek designs, engineers, and manufactures RF surge arrestors, high-current EMI/EMC feedthrough filters, and power/LAN surge protectors for protection against lightning, EMP, ESD, and electromagnetic interference. The company serves defense, aerospace, telecommunications, medical, energy, and industrial markets with standardized product families as well as custom EMC solutions designed and built at its North Billerica, MA facility.
Is Nextek a public or private company?
Nextek is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Nextek founded?
Nextek was founded in 1986. It employs 11 to 50 people.
Where is Nextek based?
Nextek is headquartered in North Billerica, United States, in the North America region.
How does Nextek make money?
Five revenue lines are on record. RF Surge Arrestors are the primary driver. The others are high Current EMI/EMC Filters, power/LAN Protection, coaxial RF Solutions and custom Design Solutions.
Who are Nextek's main competitors?
Broad incumbents on record are Bourns and TDK (EPCOS). Direct peers are PolyPhaser / Transtector, Huber+Suhner and Times Microwave Systems.
Does Nextek have an API?
No public API is recorded for Nextek.
What industry is Nextek in?
Nextek's product category is Electronic Components. Its primary akta.pro industry code is HDAHAHAE, TVS/ESD & Surge Protection Devices, with a secondary code of IMAGAJAN, EMI/EMC & Filtering Components (Common-mode chokes, filters, shielding materials). Its NAICS code is 33531 and its SIC code is 3600.