Overview
Allegro MicroSystems, Inc. is a semiconductor company specializing in magnetic sensor integrated circuits and application-specific power ICs for sensing, motion control, and power management. Its products serve automotive and industrial applications, as well as markets including data centers, robotics, and energy infrastructure.[1][2][3]
Its portfolio includes Hall-effect, GMR, and TMR sensors for current, position, and speed measurement, alongside motor drivers, voltage regulators, isolated gate drivers, and power-management ICs. Allegro describes its mission as leading global semiconductor technology with sensing and power solutions that advance electrification, automation, AI, and robotics.[4][5][6][7]
The company serves customers worldwide, with customer-support and design operations across North America, South America, Asia, and Europe. It reports more than 1,500 products, about 2.1 billion units shipped annually, and over 15,000 customers; its Careers page states that it has more than 4,600 employees across 16 countries.[8][9][10] In fiscal 2026, net sales were approximately $890.1 million.[11] [1][2][3][4][5][6][7][8][9][10][11][10]
Products & services
Allegro Microsystems’ magnetic sensor ICs use Hall-effect, giant magnetoresistive (GMR), and tunneling magnetoresistive (TMR) technologies. Its product families include current sensors, which measure current through its magnetic field; position sensors, which provide analog or digital measurements of magnetic field, position, or angle; and speed sensors, which detect rotation and direction. Applications include vehicle charging and power conversion, steering and braking, industrial motors, robotics, and data-center power systems. XtremeSense™ TMR current sensors are designed for high bandwidth in SiC- and GaN-based power conversion, while TMR position sensors emphasize resolution and safety diagnostics.[12][13][14][15]
Its power IC portfolio includes motor drivers, DC-DC voltage regulators, safety power-management ICs (PMICs), LED drivers, and isolated gate drivers (IGDs). Motor drivers combine power drivers and sequencing logic, with embedded algorithms for motor efficiency and motion control. Regulators and PMICs support power conversion in automotive systems; LED drivers and modules support vehicle lighting. IGDs combine an isolated DC-DC supply and high-voltage gate drivers to drive GaN and SiC switches, with applications including data centers, electric-vehicle powertrains, and energy infrastructure. Allegro describes its power products as using proprietary BCD process technology that integrates power transistors, analog circuits, logic, and control.[16][17][18][19][5]
In fiscal 2026, magnetic sensors generated $538.538 million, approximately 60.5% of net sales, and power ICs generated $351.558 million, approximately 39.5%; the percentages are calculated from reported product-category sales and total net sales.[20] Allegro also provides customer-facing technical support through regional support centers and key account managers who assist customers with system requirements and product adoption.[21] [12][13][14][15][16][17][18][19][5][20][21]
Geographic presence
Allegro Microsystems, Inc.’s FY2026 net sales were $890.1 million. By customer location, 89.7% of sales were outside the United States. Greater China accounted for $249.4 million (28.0%), Japan $150.9 million (17.0%), Europe $120.6 million (13.5%), South Korea $78.0 million (8.8%), Other Asia $158.0 million (17.8%), Other Americas $41.8 million (4.7%), and the United States $91.4 million (10.3%). Taiwan is included in Other Asia.[22][23]
The company’s listed facilities include its approximately 440,000-square-foot owned manufacturing site in Manila, Philippines; a leased, approximately 40,000-square-foot R&D and administration site in Muntinlupa City, Philippines; and its approximately 125,000-square-foot owned headquarters, R&D and administration site in Manchester, New Hampshire. Allegro reports a global network of design, applications and customer-support centers across North America, South America, Asia and Europe.[24][23]
As of March 27, 2026, Allegro had approximately 4,250 full-time employees; most employees in operations and quality were located at its Manila manufacturing operation, though the filing does not provide a complete employee breakdown by country. The company also relies on external wafer-fabrication partners and assembly subcontractors, including partners in Asia.[9][25][26][27][23] [22][24][9][25][26][27][23]
Business segments
Allegro Microsystems reports one reportable segment, without a separate formal segment name. It designs, develops, produces, and distributes integrated circuits; its products include sensor ICs and application-specific power ICs, such as current, position, and speed sensors, motor and LED drivers, power-management devices, and isolated gate drivers. The company serves primarily automotive and industrial applications, with products also used in areas including vehicle electrification, advanced driver-assistance systems, industrial automation, and data-center power and cooling.[28][29][30]
For fiscal 2026, the single reportable segment accounted for 100% of net sales, or $890.1 million; the company does not disclose revenue percentages for subdivisions within that segment.[28][31] As an end-market—not reportable-segment—breakdown, automotive represented approximately 70.6% of fiscal 2026 revenue and industrial and other approximately 29.4%.[31] [28][29][30][31][31][31][32][33]
Company history
Allegro MicroSystems was founded in 1990. Its product milestones included automotive brushless DC motor gate drivers in 2004, current-sensor innovations in 2005–2009, and circular vertical Hall angle sensors in 2014; that year, the company also marked its billionth IC shipped.[34]
In 2017, One Equity Partners made a minority investment in Sanken North America, and in 2018 Sanken North America announced that its consolidated U.S. subsidiary would use the Allegro MicroSystems, Inc. trade name. Allegro went public in 2020, with its shares beginning to trade on Nasdaq in October.[35][36][37]
Allegro acquired photonics company Voxtel in 2021 and Heyday Integrated Circuits in 2022. Vineet Nargolwala became president and CEO in June 2022; Allegro completed its acquisition of Crocus Technology in October 2023. Michael C. Doogue, who joined Allegro in 1998 and had served as CTO, became president and CEO in February 2025.[38][39][40][41][42] [34][35][36][37][38][39][40][41][42][34][35][36][37][39][40][41]
Sources
- ALLEGRO MICROSYSTEMS, INC. — Full financial report (2026 Y)
- www.allegromicro.com[10]
- www.sec.gov[23]
- ALLEGRO MICROSYSTEMS, INC. — Press release (2026 Y)[31]
- www.sec.gov[32]
- investors.allegromicro.com[33]
- www.allegromicro.com[34]
- www.allegromicro.com[35]
- www.allegromicro.com[36]
- www.allegromicro.com[37]
- www.allegromicro.com[39]
- www.allegromicro.com[40]
- www.allegromicro.com[41]
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