Top 10 Dip Plug-in Welding Suppliers in Norway

Nordic Through-Hole Solutions has been a cornerstone of Oslo's electronics manufacturing scene since 1998, and it's easy to see why. Specializing in dip plug-in assembly for high-precision industries like medical devices and aerospace, this family-owned business prides itself on "zero-defect" welding—a claim backed by their IPC-A-610 Class 3 certification, the highest standard for electronic assemblies.

What sets them apart? Their team of certified technicians has an average of 15 years of experience, and they invest heavily in advanced wave soldering machines that ensure consistent heat distribution, reducing the risk of cold solder joints or component damage. They're also known for their flexibility: whether you need a small batch of prototypes or ongoing mass production, they tailor their process to your timeline, often delivering orders in as little as 3–5 days for urgent projects.

Clients rave about their attention to detail, especially in medical device manufacturing, where even a tiny flaw can have serious consequences. "We once had a client bring us a complex sensor board for a heart monitor," says production manager Lars Hansen. "Their previous supplier couldn't get the through-hole resistors to stay secure during vibration testing. We adjusted our wave soldering parameters and added a post-weld inspection step—now they're our biggest client."

For startups and small-to-medium enterprises (SMEs) in Bergen and beyond, Bergen Electronics Assembly is the go-to for low-volume dip plug-in welding. Founded in 2010 by former electronics engineers, this supplier understands the challenges of scaling a product—tight budgets, frequent design tweaks, and the need for quick feedback. That's why they specialize in "flexible assembly": no minimum order requirements, rapid prototyping, and the ability to switch between dip plug-in assembly and mixed SMT/dip projects seamlessly.

Certified to ISO 13485 (medical device quality management) and RoHS compliant, they're a favorite among health tech startups and research labs at the University of Bergen. Their sweet spot? Projects with 10–500 units, where precision matters but you don't need the overhead of a large-scale factory. "We treat every prototype like it's going into production," says founder Ingrid Olsen. "That way, when our clients scale up, there are no surprises."

One unique offering is their "design for manufacturing" (DFM) consultation. Before starting assembly, their engineers review your PCB layout to suggest tweaks that make dip plug-in welding easier and more reliable—like adjusting component spacing or lead lengths. It's a free service that has saved clients countless hours (and headaches) down the line.

Trondheim Precision Welding isn't afraid of heavy lifting—literally. This supplier specializes in through-hole soldering for high-power components, making them a top choice for industrial automation, renewable energy, and marine electronics. Think thick-gauge wires, large capacitors, and heat sinks that require strong, heat-resistant solder joints.

Founded in 2005, they've built a reputation for tackling projects other suppliers shy away from. Their secret? A custom-built wave soldering machine with adjustable preheat zones and nitrogen atmosphere capabilities, which prevents oxidation during soldering—critical for components that operate in high-temperature or corrosive environments. They're also one of the few suppliers in Norway offering in-house testing services, including thermal cycling and vibration tests, to ensure assemblies hold up in the field.

"We worked with a wind turbine manufacturer last year who needed welding for their power distribution boards," recalls sales director Erik Nilsen. "The components were massive, and the solder joints had to withstand 20 years of harsh coastal weather. We ran 500+ test cycles and adjusted our flux mixture until we got it right. Now they send us all their Nordic orders."

Certified to ISO 9001 and CE standards, they're also committed to sustainability: their factory runs on 100% renewable energy, and they recycle 95% of their solder waste—a plus for eco-conscious clients.

When it comes to speed and scalability, Stavanger Dip Tech leads the pack. Located in Norway's oil and gas hub, this supplier has made a name for itself with automated dip plug-in lines that can handle up to 10,000 boards per month—perfect for automotive suppliers, consumer electronics brands, and industrial equipment manufacturers with high-volume needs.

Founded in 2002, they've invested heavily in automation, including robotic component insertion and inline wave soldering systems that minimize human error. Their production line is designed for lean manufacturing, with real-time quality monitoring via cameras and sensors that flag defects before they leave the factory. "We measure every solder joint's fillet size and pull strength," says operations manager Sofia Larsen. "If something's off, the line stops automatically—no bad boards get through."

While they excel at mass production, they're also surprisingly agile. Their "express line" caters to urgent orders, with a 48-hour turnaround for small batches—a lifesaver for clients facing production delays. They're certified to ISO 9001 and IPC J-STD-001 (solderability standards), and they offer value-added services like conformal coating and custom packaging to streamline your supply chain.

For businesses that want a "one-stop shop" for dip plug-in welding, Oslo Electronics Works delivers. Founded in 1985, this full-service supplier handles everything from component sourcing to final assembly, so you don't have to juggle multiple vendors. Whether you need help procuring hard-to-find through-hole components or want them to manage your entire PCB assembly process, they've got you covered.

Their strength lies in their global network of component suppliers, which allows them to source parts at competitive prices—even during shortages. "We keep a reserve of common through-hole components in our warehouse," explains procurement director Anna Kristensen. "For clients with recurring orders, we can lock in prices 6–12 months in advance, protecting them from market fluctuations."

Certified to ISO 9001 and RoHS compliant, they serve a mix of industries, from consumer electronics to industrial controls. Their sweet spot is small to medium batches (100–5,000 units), where their personalized service shines. Clients appreciate their transparency: they provide detailed production reports, including photos of each assembly step, so you always know what's happening with your order.

Bergen Wave Soldering Experts is all about precision—especially for industries where failure is not an option. Specializing in aerospace, defense, and high-reliability industrial applications, this supplier holds IPC-A-610 Class 3 certification, the gold standard for electronic assemblies that demand "no-excuses" quality. Their team even includes a former aerospace engineer who consults on complex projects.

What makes them unique? Their focus on wave soldering service as a standalone offering. Unlike many suppliers who bundle soldering with assembly, they're happy to take on "soldering-only" projects—perfect for clients who handle component insertion in-house but need professional wave soldering to meet strict standards. They also offer post-weld inspection using X-ray and AOI (automated optical inspection) to verify joint integrity, a critical step for safety-critical applications.

Founded in 2008, they've built a reputation for strict adherence to deadlines, even for rush orders. "A defense contractor once needed 200 communication boards welded in 48 hours for a field test," says quality manager Ole Pettersen. "We ran two shifts, brought in extra inspectors, and delivered on time. They've been with us ever since." With ISO 14001 certification, they also prioritize sustainability, using lead-free solder and energy-efficient equipment.

For budget-conscious projects—like educational kits, student prototypes, or low-cost consumer gadgets—Trondheim Electronics Partners offers some of the most competitive rates in Norway. Founded in 2015 by a group of engineering graduates, this supplier focuses on making dip plug-in welding accessible to everyone, from hobbyists to startups.

They keep costs low by using a mix of automated and manual assembly for small batches (1–100 units), avoiding the overhead of large-scale machinery. Don't let the low prices fool you, though: they still hold ISO 9001 certification and use high-quality lead-free solder, ensuring your boards are reliable and RoHS compliant. "We started this company because we saw how expensive prototyping was for students," says co-founder Marie Lund. "Now we work with universities, maker spaces, and startups who need quality without breaking the bank."

They also offer free basic design reviews to help clients optimize their PCBs for dip plug-in assembly, reducing the risk of errors and rework. While they don't handle high-volume orders, their flexibility and passion for supporting innovation make them a standout in Trondheim's tech community.

Marine and offshore electronics face some of the harshest conditions on Earth—saltwater, extreme temperatures, and constant vibration. That's where Stavanger Precision Assembly thrives. With over 30 years of experience, this supplier specializes in high-reliability through-hole soldering for marine sensors, navigation systems, and offshore oil equipment.

What makes them a leader in this niche? Their focus on durability. They use specialized fluxes and solder alloys designed to resist corrosion, and they offer conformal coating as a standard service to protect boards from moisture and dust. They're also certified to ISO 13485 (medical) and AS9100 (aerospace), meaning they meet the strictest quality standards across industries.

"We once built a control board for a subsea robot that operates 3,000 meters below sea level," says technical director Per Hansen. "The through-hole connectors had to withstand 300 bars of pressure. We tested 10 different soldering techniques before finding the right one." Their commitment to problem-solving has earned them long-term partnerships with major offshore companies, who trust them with even their most challenging projects.

Many modern circuit boards require a mix of surface-mount and through-hole components—and Oslo Dip & SMT Services excels at balancing both. This supplier offers seamless mixed-assembly services, handling everything from tiny SMT chips to large through-hole capacitors in a single production run. It's a huge time-saver for clients who want to avoid shipping boards between SMT and dip suppliers.

Founded in 2012, they've invested in hybrid assembly lines that combine pick-and-place machines for SMT components with automated dip plug-in stations, ensuring smooth transitions between processes. They also offer functional testing as part of their service, using custom test fixtures to verify that your board works as intended before it leaves the factory. "We don't just build boards—we make sure they perform," says test engineer Linda Sørensen. "For one client's IoT sensor, we even created a simulated environment to test temperature and humidity resistance."

With ISO 9001 certification and a focus on flexibility, they cater to projects of all sizes, from prototypes to mass production. Their central Oslo location also makes them easy to visit for in-person meetings, a plus for clients who want to stay hands-on with their projects.

Rounding out our list is Norwegian Electronics Assembly Co. (NEAC), a Fredrikstad-based supplier with a global reach. Specializing in export-focused dip plug-in welding, they help Norwegian companies sell their products worldwide by ensuring assemblies meet international standards—from UL certification for the U.S. market to CE marking for Europe.

Founded in 1995, NEAC has built a network of logistics partners that allows them to ship finished boards to over 50 countries, often with door-to-door delivery. They're also experts in navigating global regulations, helping clients avoid costly delays due to compliance issues. "We once helped a client export medical monitors to Japan," says export manager Thomas Jensen. "Their previous supplier missed a key certification, so we handled the paperwork, testing, and shipping—they got their product to market three months faster."

While they offer full assembly services, they're particularly strong in dip plug-in welding for high-volume consumer electronics, like home appliances and audio equipment. With UL certification, RoHS compliance, and a focus on cost-efficiency, they're a reliable partner for companies looking to scale their global footprint.