TTI, Inc.

TTI is the world's largest authorized specialist distributor of interconnect, passive and electromechanical (IP&E) components and discrete semiconductors, and through its Mouser Electronics subsidiary one of the largest catalog and e-commerce distributors of semiconductors serving design engineers. Founded by a former General Dynamics buyer to serve aerospace and defense manufacturers, TTI built its reputation on deep available-to-sell inventory, formal quality management and supply-chain programs for production customers. Under Berkshire Hathaway ownership since 2007, it has expanded into a "Family of Specialists" spanning IP&E distribution (TTI IP&E), high-service catalog distribution (Mouser), power and electromechanical solutions (Sager), RF and wireless semiconductors (RFMW, Symmetry) and engineering design services (XTG). Industry data place TTI's consolidated 2025 sales at about USD 8.4 billion, ranking it sixth among authorized distributors worldwide, third in the Americas and EMEA, and first globally in both passive and interconnect component sales. Its philosophy, unchanged since founding, is to be the best rather than the biggest distributor in its chosen categories.

TTI, Inc. is profiled here. It is the Fort Worth, Texas–based authorized distributor of electronic components (website: www.tti.com), a wholly owned operating subsidiary of Berkshire Hathaway Inc. (NYSE: BRK.A, BRK.B). TTI itself is privately held and has no listed equity, ticker, ISIN or CUSIP. Its consolidated group, which includes Mouser Electronics, Sager Electronics, RFMW, Symmetry Electronics and the Exponential Technology Group (XTG), is the entity that appears in industry rankings and market-research coverage of semiconductor and electronic component distribution services.

TTI distributes electronic components on behalf of hundreds of authorized manufacturer partners to original equipment manufacturers (OEMs), contract electronics manufacturers (EMS providers) and design engineers. Its core TTI IP&E business sells capacitors, resistors, connectors, switches, relays, circuit protection devices, magnetics, filters, discrete semiconductors, sensors, RF modules and antennas, and adds value through connector assembly and customization, cut-reel fulfillment, bonded and consigned inventory programs, and scheduled-delivery supply-chain agreements. Mouser operates as a high-service, e-catalog distributor focused on new product introductions (NPI), offering more than 6.8 million products from more than 1,200 manufacturer brands and shipping to customers in 223 countries and territories. Sager specializes in power supplies, modular power, battery assemblies, thermal management and electromechanical products. XTG brings together specialty semiconductor distribution and engineering design services, so the group can take a customer's product from concept design through bill-of-materials management and production supply.

The company describes itself as an authorized specialty distributor whose emphasis on a broad and deep product portfolio, available-to-sell inventory and sophisticated supply-chain programs has made it a distributor of choice to manufacturers in the industrial, defense, aerospace, transportation, medical and communications sectors worldwide. TTI states that its core goal since founding has been to be the best, rather than the biggest, distributor of interconnect, passive, electromechanical and discrete components.

Business model and revenue model. TTI's revenue is almost entirely product resale revenue, earned on the spread between manufacturer cost and selling price. Service revenue (design engineering through XTG, value-added connector assembly, battery-pack assembly at Sager, logistics programs) is a small but strategically important layer that increases customer stickiness and gross margin per order. There is no subscription or licensing revenue of significance. Profitability depends on gross margin rate, inventory turns and operating-expense leverage; Berkshire Hathaway's filings repeatedly attribute swings in TTI's earnings to changes in sales volume, gross margin rates and expense leverage.

Value-chain position. TTI sits between component manufacturers (suppliers such as Vishay, KYOCERA AVX, Taiyo Yuden, Littelfuse, HARTING, Aptiv, Smiths Interconnect and Ohmite) and the electronics assembly base. In the semiconductor ecosystem it is a downstream channel partner rather than a fab, foundry or equipment maker: it distributes discrete and, through Mouser and XTG, integrated semiconductors, and its power-supply and connector lines (notably Sager's) are increasingly designed into semiconductor test equipment and data-center infrastructure.

Product mix. ECIA's 2026 worldwide report breaks TTI's 2025 consolidated sales into interconnect 33%, passive components 27%, semiconductors 21%, electromechanical 11%, power and batteries 4%, computer/systems 3% and other 1%. That is a sharply different profile from broadline peers such as Arrow and Avnet, for which semiconductors represent 72–78% of sales.

Customer types and end-markets. TTI's customers include defense primes and their sub-tier suppliers, commercial aerospace, industrial automation and instrumentation, transportation (automotive, heavy truck and off-road), medical device makers, communications and data-center equipment builders, and EMS providers. The company also holds U.S. Defense Logistics Agency purchase-order awards for connectors and fixed film resistors in 2026, reflecting its role as a direct government supplier.

Independent characterization. TTI is best understood as a portfolio of specialist distribution franchises sharing Berkshire's long-term capital base. The IP&E business is a production-supply engine with very high inventory depth and long supplier relationships; Mouser is a design-stage, high-velocity e-commerce platform; Sager and XTG are higher-touch, technical-sales businesses. The combination gives TTI exposure across the product life cycle, from prototype to volume production, in categories where broadline semiconductor distributors are relatively weak.

TTI's stated strategy rests on four enduring themes: being the best rather than the biggest specialist in IP&E and discrete components; maintaining a broad and deep, available-to-sell inventory that buffers customers from lead-time swings; operating sophisticated supply-chain programs and quality systems; and serving specialized needs through the Family of Specialists, in which each unit keeps its own expertise and brand while collaborating across the group. TTI frames its people culture as "The Human Component."

Strategic initiatives in the last 24 months.

Asia Distribution Center expansion, Singapore: Date: October 2024; Scope and intent: Expanded regional fulfillment capacity to support Asian growth

Mouser leadership split: Date: January 2025; Scope and intent: Separates CEO and president roles to prepare succession and scale

European Distribution Centre expansion, Maisach-Gernlinden: Date: Groundbreaking September 2025; exterior November 2026; full completion March 2028; Scope and intent: Doubles site footprint by adding 51,000 m², including about 30,000 m² of warehouse and 6,000 m² of office space; world's largest platform-mounted AutoStore system; about 200 new jobs; DGNB Gold target; rooftop photovoltaic system

Mouser line-card expansion: Date: 2025; Scope and intent: 63 new manufacturers and more than 40,000 new part numbers; more than 430 new manufacturers since 2020

Mouser industrial automation push: Date: First half of 2026; Scope and intent: Nine new industrial automation manufacturers, positioning Mouser as a one-stop source for factory control and automation

Global operating model for TTI IP&E: Date: March 2026; Scope and intent: New global operations and services leadership to deliver consistent service across regions

Warehouse automation: Date: 2026; Scope and intent: New storage systems controlled and networked by intralogistics specialist Klinkhammer

Supplier co-marketing content: Date: 2026; Scope and intent: Podcast and webinar series with Aptiv, KYOCERA AVX, Littelfuse and Smiths Interconnect to support design-in

Sustainability program: Date: 2024–2026; Scope and intent: ISO 26000 global implementation, CDP disclosure, EcoVadis Silver rating, annual GRI-aligned sustainability reports, double materiality assessment, ISO 50001 pilot at European headquarters

No formal cost-reduction program with targets has been announced. TTI does not publish medium-term financial targets or guidance; its outlook is communicated only through Berkshire Hathaway's filings, which in 2026 point to strong demand alongside a warning that inventory cost and supply-chain uncertainty could weigh on gross margins.

TTI IP&E — passive components. Capacitors (ceramic, tantalum, film, aluminum electrolytic, supercapacitors), resistors (thick and thin film, wirewound, current sense, fixed film), potentiometers, trimmers and rheostats, inductors, chokes and coils, ferrites, EMI filters and suppression, frequency control and timing devices, NTC and PTC thermistors, varistors, audio and signal transformers, and antennas. Key franchises include Vishay (which named TTI its Global Distributor of the Year for a fifth consecutive year for 2025 performance), KYOCERA AVX, Taiyo Yuden and Ohmite. Target customers are OEMs and EMS providers in industrial, defense, transportation and medical markets. TTI is the world's largest distributor of passive components, with 2025 passive sales of about USD 2.27 billion.

TTI IP&E — interconnect. Circular, D-subminiature, MIL-spec, automotive, backplane, board-to-board, card-edge, FFC/FPC, fiber-optic, I/O, modular/Ethernet, power, RF, solar and USB connectors, terminal blocks and terminals, headers and wire housings, and IC sockets, from suppliers including HARTING, Aptiv and Smiths Interconnect. The Americas Distribution Center houses a dedicated value-added operation that customizes circular and D-sub connectors for aerospace and defense and commercial off-the-shelf programs. TTI is the world's largest interconnect distributor, with 2025 interconnect sales of about USD 2.77 billion.

TTI IP&E — electromechanical. Relays, contactors and solenoids, switches, circuit breakers, encoders, motors and drives, audio devices, knobs and dials, hardware and printers. Electromechanical sales grew 30% in 2025 to about USD 924 million.

TTI IP&E — circuit protection. Fuses and fuse holders, resettable fuses (PPTC), ESD and TVS diodes, gas discharge tubes, surge protective devices, thermal cutoffs and thyristors, with Littelfuse as a flagship supplier.

TTI IP&E — discrete semiconductors. Diodes and rectifiers, discrete and power modules, thyristors, and transistors (FETs, bipolars, IGBTs).

TTI IP&E — adjacent categories. Sensors (current, environmental, flow, force, magnetic, motion and position, optical, pressure, proximity, temperature), optoelectronics (LEDs, displays, optocouplers, fiber optics, lasers), power (AC/DC power supplies, DC/DC converters, power entry modules, batteries and chargers, transformers), RF and wireless (RF capacitors, inductors, ICs, relays, transistors, wireless modules, NFC/RFID), thermal management (fans, heat sinks, thermal interface products), wire and cable (cable assemblies, coaxial, hook-up wire, flat cable), enclosures, industrial automation (controllers, HMIs, field I/O, robotics, power products), embedded solutions, test and measurement, and tools and supplies.

TTI IP&E — services and digital tools. BOM upload, part search and part builder, quote requests, the ezBuy buy-on-account program, ezBill digital invoicing, project lists, an API with published terms of service, order-status tracking, Lead Time Trends reporting, Section 301 tariff guidance, and supply-chain programs including scheduled orders and inventory management. Quality credentials include ISO 9001, ISO 14001, ISO 27001 and MIL-STD-790. TTI reports on-time delivery above 98%.

Mouser Electronics. More than 6.8 million products from more than 1,200 manufacturer brands, including semiconductors, passives, interconnect, electromechanical, development tools and, increasingly, industrial automation products (sensors, panels, PLCs, motor controls). Mouser ships daily from more than 1.5 million square feet of distribution facilities in the Dallas–Fort Worth area, operates 28 locations, and transacts in 23 languages and 33 currencies. It added 63 new manufacturers and more than 40,000 new part numbers in 2025, and nine further industrial automation manufacturers in the first half of 2026. Certifications include ISO 9001:2015, AS9120B, AS6496A and AS9100D for moisture-sensitivity-level renewal, and MIL qualification. Its target customers are design engineers and buyers needing the newest products in prototype and low-to-mid volumes.

Sager Electronics. Power supplies and modular power, custom battery packs (through Technical Power Systems), thermal management and electromechanical products, supported by sales engineers and a Power Solutions Center in Carrollton, Texas. Sager's president describes data-center and AI equipment, semiconductor test equipment, industrial robotics and drones, instrumentation and portable medical devices as its main growth applications.

Exponential Technology Group. Symmetry Electronics (wireless, cellular, Bluetooth, embedded and video semiconductors), RFMW (RF, microwave and millimeter-wave components, expanded in Germany, Austria, Switzerland and Benelux through MRC Gigacomp and MRC Components), CHANGNAM (South Korean specialty semiconductor distribution for automotive, consumer, industrial and wireless markets), Braemac (Australian design, testing and component supply with 17 offices), and design-services firms Connected Development, Paragon Innovations and BGM Electronic Services, which together offer hardware, software, mechanical, RF and certification engineering.

Europe specialty units. Compona AG and Cosy Electronics (interconnect distribution, in-house connector assembly and custom cable-harness support), Ecopac Power (power supplies and LED drivers for the UK and Ireland), and Raffenday Limited (low- and high-voltage cable assemblies and interconnect solutions for automotive and transportation).

Pricing is set per order, quote or supply agreement and is not published as a model; Berkshire Hathaway's filings note that TTI passed through cost-based price increases in 2025 and inventory cost-based increases in 2026.