San Francisco Circuits

What San Francisco Circuits does

San Francisco Circuits is a privately held, single-source printed circuit board (PCB) fabrication and assembly broker headquartered in San Mateo, California, with a second office in San Diego. Founded in 2005 by Alex Danovich, who has been in the PCB industry since 1992, the company positions itself as a 'one-stop PCB shop' that routes orders through a curated network of domestic and international manufacturing partners rather than operating captive production lines. Its product surface spans PCB fabrication (flex, rigid-flex, metal core, RF/microwave, HDI, mil-spec, heavy copper, prototype, and quick-turn), full turnkey and consigned PCB assembly (SMT, through-hole, fine-pitch BGA down to 0.4mm, double-sided), and supporting services such as flying probe testing, AOI, X-ray, burn-in boards, lead-free/RoHS options, and Design for Manufacturability (DFM) review.

The company monetizes through quote-based B2B hardware sales, with prototyping services offering up to 24-hour turn and promotional pricing such as 3-day delivery at the 5-day price on standard 2- and 4-layer boards, plus a 15% first-order discount on offshore volume. Go-to-market is sales-led with 24/7 expert consultation via toll-free phone (1-800-SFC-5143), email, and live chat, supported by an online quoting and account system and a content-driven 'PCB School' educational hub. Distribution is exclusively direct, with field sales targeting enterprise defense and aerospace customers and inside sales covering mid-market and southern California accounts out of the San Diego office.

San Francisco Circuits serves automotive, computing, medical and instrumentation, wearable devices, and (as primary segment) defense system integrators and prime contractors. Defense eligibility is underwritten by ISO 9001:2015 certification held since 2011, ITAR registration, NIST SP 800-171 compliance achieved in 2020, MIL-PRF-31032 / 50884 / 55110 sourcing through DLA-qualified US partners, and CMMC Level 2 certification (with C3PAO-validated assessment) achieved in May 2026 — together creating regulatory access that defines much of the company's strategic posture. Operating geographies are domestic (California and broader U.S.) with international reach executed through global fabrication partners rather than owned offices.

Name

San Francisco Circuits

Legal name

San Francisco Circuits, Inc.

Website

https://sfcircuits.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

1–10 employees

Short description

San Francisco Circuits is a privately held, single-source PCB fabrication and assembly broker in San Mateo, California, serving defense, aerospace, automotive, computing, medical, and wearable customers with complex, advanced-technology boards via a network of qualified domestic and international manufacturing partners.

Ownership category

akta.pro rank

Product category

PCB Manufacturing & Assembly

NAICS

Bare Printed Circuit Board Manufacturing (334412), Printed Circuit Assembly (Electronic Assembly) Manufacturing (334418)

SIC

Printed Circuit Boards (3672), Electronic Components, Nec (3679)

akta.pro primary industry

PCB Assembly (PCBA/EMS) (HDAHAOAI)

akta.pro secondary industries

PCB Fabrication (Flex & Rigid-Flex PCBs) (HDAHAOAH), PCB Fabrication (Rigid PCBs) (HDAHAOAG), Printed Electronics & Advanced Substrates (HDI, IC Substrates, Embedded Components) (HDAHAOAK)

Keywords

• Printed circuit board manufacturing
• PCB assembly services
• Flex and rigid-flex PCBs
• Mil-spec PCB fabrication
• Prototype PCB fabrication

Headquarters

HQ city

San Mateo

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Others

Revenue model

1. PCB Fabrication (Bare Boards): Single-source bare board fabrication sourced through curated network of domestic and international manufacturing partners. Covers standard technologies (FR4, double-sided, multi-layer) through advanced technologies (flex, rigid-flex, metal core, RF/microwave, HDI, mil-spec).
2. PCB Assembly (Turnkey and Consigned): Full circuit assembly services supporting SMT, through-hole, BGA, fine-pitch, and double-sided assembly. Offered as turnkey (SFC sources all components) or consigned (customer provides components). Quick-turn assembly available.
3. Prototype and Quick-Turn PCB: Rapid prototype and quick-turn-around fabrication and assembly services. Up to 24-hour turn for prototypes. Supports engineering builds and design revisions.
4. Offshore PCB Fabrication: Offshore PCB fabrication with SFC quality oversight, vendor management, and customer service. Passes cost savings from lower-labor markets to customers.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

San Francisco Circuits is a single-source PCB fabrication and assembly value-added broker that sources printed circuit boards through a curated network of domestic and international manufacturing partners. The company offers standard PCBs (FR4, double-sided, multi-layer) and advanced technologies (flex, rigid-flex, metal core, RF/microwave, HDI, mil-spec, heavy copper) along with turnkey and consigned PCB assembly. It specializes in complex, prototype and quick-turn production boards up to 40+ layers, with design-for-manufacturability review and flying probe testing included on every order.

Product overview

San Francisco Circuits is a single-source PCB manufacturing and assembly company offering a comprehensive portfolio of printed circuit board products and services. The core offering includes PCB fabrication (bare board manufacturing) and PCB assembly services, supporting standard technologies as well as advanced technologies such as Flex PCBs, Rigid Flex PCBs, Metal Core PCBs, RF/Microwave PCBs, HDI PCBs, and Mil-Spec PCBs. The company also provides complementary services including PCB Testing & Inspection, Burn-in Boards, Lead Free PCBs, and PCB Design & Layout Services. Their Borderless Boards program extends capabilities through a global network of manufacturing partners to offer virtually unlimited PCB technologies. The company specializes in complex, advanced-technology prototype and production runs with capabilities up to 40+ copper layers.

Differentiator

Problem solved

Functional benefit

Products and services

• PCB Manufacturing & Assembly Single-source printed circuit board fabrication and assembly services covering standard and advanced technologies, including multi-layered PCBs up to 40+ copper layers, for commercial and defense/aerospace customers.
• Flex PCBs Flexible printed circuit boards including single-sided, double-sided, and multi-layer flex configurations for applications requiring bendable or dynamic circuitry.
• Rigid Flex PCBs Rigid-flex printed circuit boards combining rigid and flexible substrates for applications requiring both structural support and dynamic routing.
• Metal Core PCBs Metal core printed circuit boards with copper or aluminum substrates for enhanced thermal management in high-power applications.
• RF/Microwave PCBs Radio frequency and microwave printed circuit boards designed for high-frequency applications requiring controlled impedance and low signal loss.
• Mil-Spec PCBs Military specification printed circuit boards compliant with MIL-PRF-31032, MIL-PRF-50884, and MIL-PRF-55110 for defense and aerospace applications requiring stringent quality standards, sourced through DLA-qualified US-based manufacturing partners.
• Heavy Copper PCBs Printed circuit boards with enhanced copper weight for high-current applications and power electronics requiring superior current-carrying capacity.
• HDI PCBs High Density Interconnect printed circuit boards with fine lines, microvias, and buried/blind vias for compact, high-performance electronic designs.
• Prototype PCBs Quick-turn prototype PCB fabrication services with turnaround times up to 24 hours for design validation and early-stage product development.
• Quick Turn Around PCBs Expedited PCB fabrication and assembly services with reduced lead times for time-sensitive projects.
• PCB Assembly Complete PCB assembly services including surface mount technology (SMT), through-hole, BGA, and fine-pitch component placement with reflow soldering, offered as turnkey (SFC sources components) or consigned (customer provides components).
• PCB Testing & Inspection Comprehensive testing services including flying probe testing, automated optical inspection (AOI), X-ray inspection, and functional testing for quality assurance.
• Burn-in Boards Specialized burn-in test boards for screening components and identifying early failures in semiconductor devices.
• Lead Free PCBs RoHS-compliant and lead-free printed circuit boards meeting environmental regulations for hazardous substances.
• PCB Design & Layout Services Design for Manufacturability (DFM) review and PCB layout services to optimize designs for production.

Quantifiable outcome

• Flying probe testing included at no extra cost with every prototype or production bare board order
• +2 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• DLA-Qualified US-Based Manufacturing PartnerscoreTechnology or IntegrationSan Francisco Circuits sources boards through a curated network of DLA-qualified US-based manufacturing and assembly partners for MIL-SPEC programs. Partners' qualifications, process capabilities, and technology scopes are matched to specific program requirements rather than forcing designs to fit a single shop's limitations.
• Global Fabrication PartnerscoreTechnology or IntegrationSFC qualifies fabrication houses globally (not limited to Asia) based on quality, pricing, and on-time delivery. The offshore specialist manages vendor qualification including quality systems checks, capabilities assessment, pricing, and technology categorization. Partners build boards where they are best suited based on technology requirements.
• e-DronminorStrategic or Co-development PartnerSan Francisco Circuits partnered with e-Dron to build UAVs (Unmanned Aerial Vehicles) for precision agriculture applications.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• PCBWay: China-headquartered online PCB fabrication and assembly broker serving global customers with a wide technology range (rigid, flex, rigid-flex, HDI) and quick-turn prototyping — directly competes with SFC in the same online quote-to-delivery broker model.
• JLCPCB: Shenzhen JLC Electronics operates a high-volume PCB fabrication and assembly service known for low-cost prototype boards — competes head-to-head with SFC's prototype and quick-turn offering on price and lead time for standard FR4 work.
• Sierra Circuits: Sunnyvale, California-based PCB manufacturer specializing in high-complexity prototypes and small-batch production — competes directly with SFC's premium US-based complex PCB positioning in the Bay Area customer base.
• Advanced Circuits: One of the largest US-based PCB manufacturers offering prototype to production rigid, flex, and rigid-flex boards — competes with SFC in the US domestic PCB market with broader captive manufacturing capacity.
• Sunstone Circuits: US-based PCB prototype and small-volume manufacturer with online quoting — competes with SFC for prototype and quick-turn PCB business from the same North American customer base.
• Seeed Studio (PCB service): Shenzhen-based open hardware facilitator offering PCB fabrication and assembly (Fusion service) alongside electronics components — overlaps with SFC's prototype and small-batch assembly offering for makers and OEMs.
• APCT: US-based PCB manufacturer with rigid, flex, rigid-flex and HDI capabilities serving defense, aerospace, and medical customers — directly comparable to SFC's vertically-integrated complex PCB positioning.
• PCB Cart: China-based online PCB fabrication and assembly broker offering prototype through production runs — directly comparable to SFC's broker model on technology range, quick-turn capability, and online quoting.

Regional players

• Eurocircuits: Belgian PCB prototype and small-series manufacturer offering online quoting and assembly — comparable broker-style model to SFC but serving the European market rather than the US.

Broad incumbents

• TTM Technologies: Large US-headquartered global PCB manufacturer with aerospace and defense exposure — operates at much higher volume and broader capability than SFC, but competes for the same mil-spec and defense integrator programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/sfcircuits
• Facebookfacebook.com/21024646565
• LinkedInlinkedin.com/company/san-francisco-circuits

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about San Francisco Circuits