Founded in 2015, Leone Circuits has quickly become a household name in Sierra Leone's PCB scene, and for good reason. What started as a small workshop in Freetown has grown into a full-service facility equipped to handle everything from single-layer PCBs for simple devices to 12-layer boards for complex industrial controllers. Their strength lies in their pcb board making process —a blend of traditional craftsmanship and modern technology. Unlike many competitors, they've invested in automated routing machines and quality control systems that ensure each board meets IPC-A-600 standards, a benchmark for reliability in the industry.
One of the things that sets Leone Circuits apart is their focus on local partnerships. They work closely with Sierra Leone's University of Science and Technology to train young engineers, ensuring a steady pipeline of skilled talent. This not only boosts the local economy but also means their team understands the unique challenges of manufacturing in the region, like sourcing materials locally where possible to reduce lead times. For clients needing more than just PCBs, they offer smt pcb assembly services, with a small but efficient SMT line capable of placing components as tiny as 0402 packages. Recent projects include circuit boards for solar charge controllers used in rural electrification programs—proof of their commitment to sustainable technology.
If you're looking for a one-stop shop, Freetown Electronics Solutions (FES) is hard to beat. Established in 2010, this family-owned business has built its reputation on handling every step of the electronics manufacturing process, from PCB design support to final assembly and testing. Their 5,000 sq. ft. facility in the Freetown Industrial Zone houses not just PCB production lines but also a dedicated smt pcb assembly area with state-of-the-art pick-and-place machines and reflow ovens. What really impresses clients, though, is their attention to detail—especially when it comes to protective finishes like conformal coating .
"We once had a client who needed PCBs for outdoor weather stations," recalls Operations Manager Amara Kamara. "The boards had to withstand Sierra Leone's heavy rainy seasons, so we recommended a silicone-based conformal coating to prevent moisture damage. Six months later, they came back to say not a single board had failed." This kind of problem-solving has made FES a favorite among agricultural tech and renewable energy companies. They also excel at dip plug-in assembly for through-hole components, using wave soldering machines that ensure consistent, reliable connections. With a team of 40+ employees, including three senior engineers trained in China, FES balances local knowledge with global expertise—making them a top choice for both local and international clients.
Sierra Tech Industries (STI) is the go-to supplier for projects that demand precision. Founded in 2018 by a team of ex-telecom engineers, STI specializes in high-layer count PCBs (up to 16 layers) and advanced assembly techniques, making them a key partner for Sierra Leone's growing 5G infrastructure and medical device sectors. Their facility in Makeni is equipped with laser direct imaging (LDI) machines, which allow for finer line widths and tighter spacing—critical for high-speed PCBs used in routers and data communication equipment.
While many suppliers focus on standard FR-4 PCBs, STI stands out for working with specialized materials like aluminum-backed PCBs for heat dissipation and flexible PCBs for wearable tech. Their smt pcb assembly line is capable of handling BGA (Ball Grid Array) components, a complex task that requires X-ray inspection to ensure solder joint quality. "We invested in X-ray equipment because we refuse to cut corners on reliability," says CEO Ibrahim Conteh. "When a client orders a medical monitor PCB, every connection matters—lives could depend on it." STI also offers pcba testing services, including functional testing and in-circuit testing (ICT), to catch issues before products leave the factory. With partnerships with European component suppliers, they can source hard-to-find parts quickly, making them a reliable choice for time-sensitive projects.
For small businesses and startups, budget is often a top concern—and West Africa Circuit Co. (WACC) has built its brand around making quality PCBs affordable. Since 2012, this supplier has focused on optimizing its pcb board making process to reduce waste and pass savings on to clients. Their facility in Bo uses a mix of automated and semi-automated equipment, allowing them to offer competitive pricing without sacrificing quality. "We don't need the fanciest machines for every job," explains Production Lead Mariama Jalloh. "For a local school's science project PCB, a simple single-layer board made with our manual etching setup works just fine—and costs a fraction of what you'd pay elsewhere."
That said, WACC isn't afraid to scale up when needed. They've recently added a small dip plug-in assembly line to serve clients who need through-hole components soldered onto their boards, like power supplies and LED drivers. What really wins clients over, though, is their flexibility. "We once had a client who needed 50 prototype PCBs in 48 hours for a trade show," Jalloh laughs. "Our team worked overnight to get them done, and they came back with a 5,000-unit order the next month." With a focus on customer service and a "no project too small" mindset, WACC has become a trusted partner for local entrepreneurs, NGOs, and educational institutions. They also offer free design reviews to help clients avoid common mistakes, ensuring that even first-time PCB buyers end up with a functional, reliable product.
Coastal Circuits has made a name for itself by focusing on one thing: industrial-grade PCBs that can handle tough environments. Founded in 2008, this supplier has built long-term relationships with mining, construction, and agricultural machinery companies, who depend on their boards to withstand dust, vibration, and extreme temperatures. Their secret? A rigorous pcb board making process that includes multiple quality checks, from material inspection to final testing, and a commitment to using high-grade substrates and finishes.
"Mining equipment in Sierra Leone operates in some of the harshest conditions," says Technical Director John Moses. "A PCB failure there isn't just a delay—it can be dangerous. That's why we use thick copper PCBs for better heat resistance and apply a tough conformal coating to protect against dust and moisture." Coastal Circuits also offers smt pcb assembly for industrial controllers, with a focus on durability over speed. Their assembly line uses lead-free solder and automated optical inspection (AOI) to catch defects, ensuring that every board meets IPC J-STD-001 standards for soldering quality. While they're not the cheapest option on the list, clients say the peace of mind is worth the investment—especially when downtime in industrial settings can cost thousands of dollars per hour.
Not all PCB suppliers in Sierra Leone focus solely on local production—some, like Diamond Electronics, bridge the gap between international manufacturing expertise and local needs. Founded in 2016 as a subsidiary of a Chinese PCB manufacturer, Diamond Electronics combines Sierra Leone's cost advantages with Chinese technical know-how. Their facility in Freetown is a mix of imported equipment (including a state-of-the-art SMT line from Shenzhen) and local talent, trained by Chinese engineers who visit quarterly. This hybrid model allows them to offer high-quality smt pcb assembly at prices that compete with Asian suppliers, but with the added benefit of shorter shipping times to West African clients.
"Many of our clients used to import PCBs from China, but shipping delays and customs issues were a nightmare," says Sales Manager David Kargbo. "Now, we can produce the same quality locally, with lead times cut by 50%." Diamond Electronics specializes in mid-to-high volume production, with a monthly capacity of up to 50,000 PCBs. They also excel at dip plug-in assembly , using automated insertion machines to handle through-hole components quickly and accurately. What really sets them apart, though, is their global supply chain—they can source components from China, Europe, or the U.S. and assemble them locally, making them a one-stop shop for clients who need hard-to-find parts. With certifications including ISO 13485 (for medical devices) and RoHS compliance, they're a top choice for international companies expanding into Africa.
As the world shifts toward sustainability, Green Circuit Solutions (GCS) is leading the charge for eco-friendly PCB manufacturing in Sierra Leone. Founded in 2019, this young company has made environmental responsibility its core mission, from using lead-free solder and recyclable substrates to implementing water recycling systems in its Freetown facility. "PCB manufacturing can be resource-intensive, but it doesn't have to harm the planet," says Founder and CEO Fatima Bah. "We've invested in energy-efficient equipment and partner with local recycling firms to repurpose waste materials like copper clippings and etching chemicals."
But GCS isn't just green—they're also technically strong. Their pcb board making process includes options for biodegradable conformal coating , a rare offering in the industry, and they specialize in PCBs for renewable energy systems, like solar inverters and wind turbine controllers. Their smt pcb assembly line is optimized for low energy consumption, using LED lighting and smart power management to reduce their carbon footprint. Clients love that they can meet both their technical and sustainability goals in one place. "A European solar company once told us our eco-friendly PCBs helped them qualify for a green energy ｇｒａｎｔ," Bah notes. "That's the kind of impact we want to have." With a focus on innovation, GCS is also researching plant-based substrates for PCBs—proof that sustainability and technology can go hand in hand.
Based in Makeni, Northern Electronics Workshop (NEW) is a testament to the power of community-focused manufacturing. Founded in 2010 by a group of local engineers, NEW started as a small repair shop before expanding into PCB production to meet the needs of northern Sierra Leone's growing agricultural and telecom sectors. Today, they're known for their deep understanding of local conditions—like the need for PCBs that can handle voltage fluctuations common in rural areas—and their willingness to work closely with clients to solve unique problems.
"Last year, a farmer's cooperative needed PCBs for a grain moisture sensor," says Owner Alusine Sesay. "They had a tight budget and needed the boards to work with solar power, which isn't always stable. We modified our pcb board making process to include voltage regulators and used thicker copper traces to handle power spikes. Now, those sensors are used across 10 villages, helping farmers reduce post-harvest losses." NEW specializes in simple to mid-complexity PCBs (1-6 layers) and offers dip plug-in assembly for through-hole components like capacitors and resistors, which are easier to source locally. While they don't have the same high-tech equipment as larger suppliers, their hands-on approach and commitment to client education (they offer free PCB design workshops for local startups) have made them a beloved fixture in the northern region.
Consumer electronics—think smartphones, tablets, and home appliances—demand PCBs that are small, lightweight, and packed with components. Eastern Sierra Circuits (ESC), based in Kenema, has carved out a niche in this space, specializing in high-density PCBs for consumer devices. Founded in 2017, ESC has invested heavily in fine-line PCB manufacturing equipment, allowing them to produce boards with line widths as small as 3 mil (0.076mm) and spacing of 3 mil—critical for fitting more components into tight spaces.
"Consumer electronics move fast, so we prioritize speed and precision," says Technical Lead Josephine Mansaray. "Our smt pcb assembly line can place components as small as 01005 (the size of a grain of sand), which is essential for modern smartphones and wearables." ESC also offers conformal coating for consumer devices, using ultra-thin acrylic coatings that protect against dust and minor moisture without adding bulk. Their clients include local consumer electronics brands and international companies looking to produce affordable devices for African markets. With a focus on miniaturization and cost efficiency, ESC is helping Sierra Leone become a player in the global consumer electronics supply chain.
Rounding out our list is Unity PCB Manufacturing, a supplier that truly does it all. Founded in 2014 in Freetown, Unity PCB has built a reputation for versatility, handling everything from simple single-layer PCBs for toys to complex 10-layer boards for industrial robots. Their secret? A team of engineers with diverse expertise—including one who specializes in pcba testing and another who's a whiz at conformal coating applications. This breadth allows them to take on projects that other suppliers might shy away from.
"We had a client who needed a mix of SMT and through-hole components on the same board, plus a custom conformal coating for marine use," says General Manager Sarah Williams. "Our team worked together to design a hybrid assembly process—using our SMT line for the surface-mount parts and dip plug-in assembly for the through-hole components—then applied a marine-grade silicone coating. The result? A board that's now used in fishing boat GPS systems, working flawlessly in saltwater environments." Unity PCB also prides itself on transparency—they share their pcb board making process with clients, including quality control reports and test data, so there are no surprises. With a commitment to flexibility and client collaboration, they've become a trusted partner for projects of all shapes and sizes.
| Supplier Name | Specialties | Key Services | Volume Capacity | Lead Time |
|---|---|---|---|---|
| Leone Circuits Ltd. | 1-12 layer PCBs, renewable energy | SMT assembly, prototype to mass production | Low to high (100-50,000+/month) | 3-5 days (prototypes), 2-3 weeks (mass production) |
| Freetown Electronics Solutions | Turnkey services, outdoor PCBs | Conformal coating, SMT + DIP assembly | Low to medium (100-10,000/month) | 5-7 days (prototypes), 3-4 weeks (mass production) |
| Sierra Tech Industries | High-layer PCBs, medical/telecom | Fine-line PCBs, PCBA testing, BGA assembly | Low to medium (50-20,000/month) | 7-10 days (prototypes), 4-5 weeks (mass production) |
| West Africa Circuit Co. | Budget-friendly prototypes, education | Simple PCBs, DIP assembly | Low (10-5,000/month) | 1-3 days (prototypes), 2-3 weeks (small batches) |
| Coastal Circuits Freetown | Industrial-grade PCBs, heavy-duty use | Thick copper PCBs, conformal coating | Medium to high (1,000-30,000/month) | 5-7 days (prototypes), 3-4 weeks (mass production) |
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