Reliable Capacitors
Reliable Capacitors is a US-based, founder-owned manufacturer of precision handmade capacitors — Rel-Cap, AudioCap, AudioCapX, and AudioCap Copper — serving electronics, industrial, consumer OEMs, high-end audio manufacturers, and aerospace/harsh-environment applications via direct sales.
- Company typePrivate
- Founded1995
- HeadquartersProvo, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Reliable Capacitors does
Reliable Capacitors is a US-based, founder-owned precision capacitor manufacturer headquartered in Provo, Utah, operating since approximately 1995 under owner Bas Lim. The company designs and hand-builds high-performance capacitors across four product families — Rel-Cap (standard industrial/consumer OEM line), AudioCap (audio-specific line), AudioCapX (premium multi-section coaxial line, formerly branded MultiCap and co-developed with Richard Marsh), and AudioCap Copper / TFTCu (Teflon-and-copper foil line rated to 200°C). Its core technology is a patented multi-section coaxial winding method (the 'MultiCap' design) that winds multiple smaller capacitors coaxially into a single self-bypassed unit, reducing inductance by the number of sections (typically 10) and yielding Equivalent Series Resistance (ESR) values 5–10× lower and dissipation factor values roughly 100–1000× lower than conventional designs. The company holds registered trademarks (Rel-Cap®, AudioCap®, AudioCapX®) and shares a patent on the MultiCap coaxial winding with co-inventor Richard Marsh; all production is performed on proprietary machines exclusively owned and operated by Reliable Capacitors, with 100% domestic US manufacturing.
The business model is straightforward direct hardware sales: capacitors are sold one-off, with no subscription or recurring component, at undisclosed unit pricing, via phone (801-377-2397) and email ([email protected]). No e-commerce or transactional online ordering is available. Customers are reached through a sales-led motion targeting OEM buyers in electronics, industrial, and consumer markets, high-end audio equipment manufacturers (one named customer, Wilson Audio), power supply manufacturers, and audiophile enthusiasts, plus aerospace and harsh-environment applications served by the TFTCu line. Marketing relies on a content-rich website that publishes legacy technical papers (Walter G. Jung, Richard Marsh) and technical notes to attract knowledgeable specialist buyers rather than mass-market demand generation.
At 11–50 employees, privately held, bootstrapped, and with no disclosed funding rounds or institutional investors, the company operates as a small specialty manufacturer. Its go-to-market is global in reach via direct contact but concentrated in high-end audio and niche industrial OEM accounts. Recent activity (the 2025 AudioCapX rebrand and the TFTCu line extension into aerospace) indicates continued product investment, but the absence of distribution scale-up, headcount growth signals, or revenue disclosure makes the overall growth trajectory difficult to quantify beyond modest, organic, niche-market expansion.
Reliable Capacitors firmographics
Firmographics- Name
- Reliable Capacitors
- Legal name
- Reliable Capacitors
- Website
- https://reliablecapacitors.com
- Company type
- Private
- Founded year
- 1995
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Reliable Capacitors is a US-based, founder-owned manufacturer of precision handmade capacitors — Rel-Cap, AudioCap, AudioCapX, and AudioCap Copper — serving electronics, industrial, consumer OEMs, high-end audio manufacturers, and aerospace/harsh-environment applications via direct sales.
- Ownership category
- akta.pro rank
Reliable Capacitors industry classification
Industry- Product category
- Electronic Components (Precision Capacitors)
- NAICS
- Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416)
- akta.pro primary industry
- Capacitors (Ceramic/Film/Electrolytic/Tantalum/Supercapacitors) (HDAHANAB)
- akta.pro secondary industry
- Passive Components (Resistors, Capacitors, Inductors, Ferrites) (IMAGAJAA)
Keywords
Where Reliable Capacitors is headquartered
LocationHeadquarters
- HQ city
- Provo
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Reliable Capacitors business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Capacitor Product Sales: Reliable Capacitors generates revenue through the sale of precision capacitors across multiple product lines: Rel-Cap (standard industrial/commercial capacitors), AudioCap (audiophile-grade capacitors), AudioCapX (premium multi-section capacitors), and AudioCap Copper Series. Products are sold as one-time purchases with no subscription component. The company serves electronics, industrial, consumer OEM markets, and high-end audio manufacturers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Rel-Cap Standard Line |
| Unit Pricing | Pay-as-you-go | AudioCap Series |
| Unit Pricing | Pay-as-you-go | AudioCapX Premium Series |
| Unit Pricing | Pay-as-you-go | AudioCap Copper Series (TFTCu) |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Reliable Capacitors product offering
Product offeringCore offering
Reliable Capacitors is a US-based manufacturer of precision electronic capacitors sold across four product lines—Rel-Cap (standard industrial/commercial), AudioCap (audiophile), AudioCapX (premium multi-section, formerly MultiCap), and AudioCap Copper/TFTCu (Teflon-and-copper high-temperature)—each available in multiple dielectric materials including polystyrene, polypropylene, polyester, PTFE, metallized polypropylene, and metallized polyester films. The company produces all capacitors by hand in its Provo, Utah facility using its own proprietary manufacturing machinery, with a patented multi-section coaxial winding (MultiCap) design that delivers 5–10x lower ESR and significantly lower dissipation factor than conventional capacitors.
Product overview
Reliable Capacitors is a manufacturer of precision electronic capacitors, primarily serving audio, aerospace, industrial, and consumer OEM markets. The company offers four distinct product lines: (1) Rel-Cap® as the standard high-performance capacitor line available in multiple dielectric materials; (2) AudioCap® designed specifically for audio applications including speaker crossovers and power supply circuitry; (3) AudioCapX® featuring a proprietary multi-section coaxial design (formerly MultiCap™) that provides significantly lower ESR and inductance than conventional capacitors; and (4) AudioCap Copper (TFTCu) specialized Teflon/copper capacitors rated for extreme temperatures up to 200°C. All products are handmade in the United States of America.
Differentiator
Problem solved
Functional benefit
Brands
- Rel-Cap: The standard line of high-quality, high-performance capacitors available in polystyrene (RT), polypropylene (PP), polyester (V), PTFE, metallized polypropylene (MPP), and metalized polyester films (VM). Used in electronics, industrial, consumer OEM markets, and high-end audio applications.
- AudioCap
- AudioCapX
- AudioCap Copper
Products and services
- Rel-Cap Standard line of high-quality, high-performance capacitors for electronics, industrial, and consumer OEM markets as well as high-end audio and power supply manufacturers. Available in polystyrene (RT), polypropylene (PP), polyester (V), PTFE, metallized polypropylene (MPP), and metallized polyester films (VM).
- AudioCap Audio-specific capacitor product line for speaker crossovers, audio electronics, and audio/video power supply circuitry. Available in metalized polypropylene (PPMT, PPMF), polypropylene and aluminum (Alpha PPF), polypropylene and tin (Theta PPT), polystyrene and tin (RT), and PTFE (TFT) variants.
- AudioCapX Premium multi-section capacitor line (formerly MultiCap) using a patented coaxial winding design with multiple self-bypassed sections in parallel, delivering ESR 5–10x lower than conventional capacitors and significantly reduced inductance. Available in metalized polypropylene (PPMFX), polystyrene (RTX), polypropylene and tin (PPFXS), and polypropylene and aluminum (PPFX). Recommended for high-current, high-speed, pulsed audio and electronic applications.
- AudioCap Copper (TFTCu) Teflon and copper (film/foil) capacitor series engineered for superb electrical and environmental characteristics. Uses 99.99% oxygen-free OFHC copper leads with Teflon insulation, and ends are sprayed with copper (not tin) to minimize the electron energy barrier between dissimilar metals. Operating range -55°C to +200°C without derating. Targeted at audio electronics, aerospace, temperature compensating circuits, integrating circuits, R-C networks, and other hazardous environments.
Quantifiable outcome
- ESR values 5-10 times lower than conventional capacitor designs
- +4 more outcomes
Companies that use Reliable Capacitors
Customer profileNamed customers1 record
Segments3 records
Ideal customer profiles3 records
Reliable Capacitors technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Reliable Capacitors partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and minor.
- Richard MarshcoreRichard Marsh co-developed the MultiCap technology with Bas Lim (owner of Reliable Capacitors). Marsh is the co-inventor of the patented MultiCap coaxial winding design. He has authored numerous technical papers on capacitors in audio applications, including 'Picking Capacitors' (with Walter G. Jung), 'Considerations for a High Performance Capacitor', and papers on the REL MultiCap in power supplies and filter circuits.
- Wilson AudiominorWilson Audio, a high-end audio equipment manufacturer, is referenced on the Reliable Capacitors website with a link to their official website. Wilson Audio is a known customer of Reliable Capacitors products and may represent products to their customers or use them in their equipment.
Scale indicators2 records
Recent moves6 records
Expansion highlights4 records
Reliable Capacitors competitors and assessment
Company assessmentBroad incumbents
- Vishay Intertechnology: Vishay Intertechnology is a large US-headquartered manufacturer of discrete semiconductors and passive components, including a broad portfolio of film and electrolytic capacitors. It is comparable to Reliable Capacitors in industrial-grade film capacitor offerings but as a broad incumbent with a much wider product portfolio.
- Cornell Dubilier: Cornell Dubilier is a major US-based manufacturer of film, aluminum electrolytic, and mica capacitors serving industrial, aerospace, and military markets. It overlaps with Reliable Capacitors' industrial and aerospace-grade film capacitor offerings but as a broad incumbent serving much larger and more diversified customers.
- Nichicon: Nichicon is one of the world's largest Japanese capacitor manufacturers producing electrolytic and film capacitors across industrial, automotive, and audio applications. As a broad incumbent, it overlaps with Reliable Capacitors in audio-grade and industrial film capacitors but operates at vastly greater scale across many capacitor chemistries.
- KEMET (Yageo): KEMET, now part of Yageo, is a global manufacturer of tantalum, ceramic, film, and electrolytic capacitors serving automotive, industrial, aerospace, and consumer markets. It competes with Reliable Capacitors in industrial and specialty film capacitor segments but as a broad incumbent with vastly greater scale.
Direct peers
- Solen: Solen is a Canadian manufacturer and distributor of metallized polypropylene and polyester film capacitors widely used in speaker crossover design. It is directly comparable to Reliable Capacitors as a film-capacitor supplier to the DIY and OEM audiophile market in North America.
- WIMA: WIMA is a German manufacturer of film capacitors (polypropylene, polyester, PTFE) widely used in audio, power electronics, and industrial applications. It is directly comparable to Reliable Capacitors as a film-capacitor specialist serving similar OEM and audio customers with overlapping dielectric technologies.
- Mundorf: Mundorf is a German manufacturer specializing in high-end audio capacitors (including film/foil and metallized polypropylene types) for speaker crossovers and audiophile electronics. It competes head-to-head with Reliable Capacitors' AudioCap and AudioCapX lines in the premium audio component market.
- Jantzen Audio: Jantzen Audio is a Danish manufacturer of audio-grade capacitors (and inductors) widely used by speaker builders and high-end audio OEMs. It targets the same audiophile crossover and electronics market as Reliable Capacitors with comparable metallized polypropylene and film/foil product families.
- Jensen Capacitors: Jensen Capacitors is a Danish manufacturer known for its four-pole capacitors designed for tube audio and high-end speaker applications. Like Reliable Capacitors, it serves premium audio OEMs with specialized film capacitors and emphasizes low-loss, low-inductance designs.
- ClarityCap: ClarityCap is a UK-based manufacturer of audio-grade capacitors using metallized polypropylene film, marketed specifically to high-end loudspeaker and electronics manufacturers. It is a direct niche competitor to Reliable Capacitors in the audiophile film-capacitor segment.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Reliable Capacitors social profiles
Digital presenceReliable Capacitors financial estimates
Financial estimateRevenue estimate
Valuation estimate
Reliable Capacitors leadership team
Management profileNumber of profiles
Profiles1 record
Reliable Capacitors funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Reliable Capacitors 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 Reliable Capacitors
What does Reliable Capacitors do?
Reliable Capacitors is a US-based manufacturer of precision electronic capacitors sold across four product lines—Rel-Cap (standard industrial/commercial), AudioCap (audiophile), AudioCapX (premium multi-section, formerly MultiCap), and AudioCap Copper/TFTCu (Teflon-and-copper high-temperature)—each available in multiple dielectric materials including polystyrene, polypropylene, polyester, PTFE, metallized polypropylene, and metallized polyester films. The company produces all capacitors by hand in its Provo, Utah facility using its own proprietary manufacturing machinery, with a patented multi-section coaxial winding (MultiCap) design that delivers 5–10x lower ESR and significantly lower dissipation factor than conventional capacitors.
Is Reliable Capacitors a public or private company?
Reliable Capacitors is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Reliable Capacitors founded?
Reliable Capacitors was founded in 1995. It employs 11 to 50 people.
Where is Reliable Capacitors based?
Reliable Capacitors is headquartered in Provo, United States, in the North America region.
How does Reliable Capacitors make money?
One revenue line is on record: capacitor Product Sales.
Who are Reliable Capacitors's main competitors?
Broad incumbents on record are Vishay Intertechnology, Cornell Dubilier, Nichicon and KEMET (Yageo). Direct peers are Solen, WIMA, Mundorf, Jantzen Audio, Jensen Capacitors and ClarityCap.
Does Reliable Capacitors have an API?
No public API is recorded for Reliable Capacitors.
What industry is Reliable Capacitors in?
Reliable Capacitors's product category is Electronic Components (Precision Capacitors). Its primary akta.pro industry code is HDAHANAB, Capacitors (Ceramic/Film/Electrolytic/Tantalum/Supercapacitors), with a secondary code of IMAGAJAA, Passive Components (Resistors, Capacitors, Inductors, Ferrites). Its NAICS code is 334416.