Verified Nov 2026
Batteries & E-Mobility
·
Bartlett, Illinois
·
Since 1902
Senior Flexonics is a manufacturer of fluid conveyance, thermal management, and high-technology components, headquartered in Bartlett, Illinois, United States. Founded in 1902, it operates within the Senior plc group and employs an estimated 500 to 1,000 people, with estimated annual revenue of $250 to $500 million. The company serves the automotive, electric-vehicle, electronics, medical, plumbing-hardware, and renewable-energy industries. In October 2025, it opened a new manufacturing facility and Innovation Centre in Caerphilly County, Wales. Its product range includes battery and thermal management solutions for electric vehicles.
Senior Flexonics at a glance
Revenue
$250-500M
Est. band
Employees
500-1,000
Founded
1902
Headquarters
Bartlett, Illinois
Certifications
IATF 16949 · ISO/TS 16949
Import activity
583
Industries
Automotive
Electric Vehicles
Electronics
Medical
Plumbing & Hardware
Renewable Energy
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
583
Named foreign suppliers
50
Top origins
India · Vietnam · Taiwan · China
Shared foreign counterparties do not establish that these companies buy from Senior Flexonics.
What this tells a buyer
Trade records for the company were not available in the record, so its shipment activity cannot be assessed; the most recent reported development is the opening of a new manufacturing facility and Innovation Centre in Caerphilly County, Wales, in October 2025.
The company holds IATF 16949 and ISO/TS 16949 certifications and lists battery and thermal management products among its offerings.
Senior Flexonics is a subsidiary within the Senior plc group and is privately held, with its revenue and headcount figures based on estimated bands.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
124 years in operation (founded 1902).
Holds IATF 16949, ISO/TS 16949 certification(s) per public sources.
Overview
Senior Flexonics is a manufacturer of fluid conveyance, thermal management, and high-technology components, headquartered in Bartlett, Illinois, United States. Founded in 1902, it operates within the Senior plc group and employs an estimated 500 to 1,000 people, with estimated annual revenue of $250 to $500 million. The company serves the automotive, electric-vehicle, electronics, medical, plumbing-hardware, and renewable-energy industries. In October 2025, it opened a new manufacturing facility and Innovation Centre in Caerphilly County, Wales. Its product range includes battery and thermal management solutions for electric vehicles.
At a glance
Attribute | Detail |
|---|---|
Founded | 1902 |
Headquarters | Bartlett, Illinois |
Employees | 500-1,000 |
Revenue | $250-500M (estimated) |
Primary capability | Batteries & E-Mobility |
Certifications | IATF 16949 · ISO/TS 16949 |
What Senior Flexonics makes
The company holds IATF 16949 and ISO/TS 16949 certifications and lists battery and thermal management products among its offerings.
Products and capabilities described on the company's own site include Battery, Thermal Management (source: seniorflexonics.com).
Certifications
Senior Flexonics is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
IATF 16949 — seniorflexonics.de
ISO/TS 16949 — seniorflexonics.com
Trade and customs footprint
Trade records for the company were not available in the record, so its shipment activity cannot be assessed; the most recent reported development is the opening of a new manufacturing facility and Innovation Centre in Caerphilly County, Wales, in October 2025. US customs bill-of-lading records list 583 inbound shipments across 50 foreign suppliers, with top origins including India · Vietnam · Taiwan · China.
Latest developments
2026-08-17 — Successful Go-Live of the 3DEXPERIENCE Platform at Senior Flexonics India (edstechnologies.com)
2026-01-05 — Press Releases – Senior plc (seniorplc.com)
2025-12-12 — Busworld 2025: Senior Flexonics presents thermal management products for electric vehicles (truckandbusbuilder.com)
2025-10-24 — State-of-the-Art Global Innovation Centre Opens in South Wales (businessnewswales.com)
2025-10-20 — Senior plc was delighted last week to announce the opening of Senior Flexonics’ new state-of-the-art manufacturing facility and Innovation Centre in Caerphilly County, Wales. | Senior plc (linkedin.com)
2025-06-01 — MACHINIST.IN » Senior Plc Expands Production Capacity with New Facility in Gurugram (machinist.in)
Facilities
Senior Flexonics is headquartered in Bartlett, Illinois. Public sources also reference these locations:
Caerphilly County, Wales — linkedin.com
Gurugram, India — machinist.in
India — seniorplc.com
Company details
Senior Flexonics is a subsidiary within the Senior plc group and is privately held, with its revenue and headcount figures based on estimated bands. Senior Flexonics was founded in 1902, has an estimated 500-1,000 employees, and is headquartered in Bartlett, Illinois. On the LightSource stability read it is rated "Established & active": 124 years in operation (founded 1902). Holds IATF 16949, ISO/TS 16949 certification(s) per public sources.
Frequently asked questions
What does Senior Flexonics make?
Senior Flexonics is a manufacturer of fluid conveyance, thermal management, and high-technology components, headquartered in Bartlett, Illinois, United States. Founded in 1902, it operates within the Senior plc group and employs an estimated 500 to 1,000 people, with estimated annual revenue of $250 to $500 million. The company serves the automotive, electric-vehicle, electronics, medical, plumbing-hardware, and renewable-energy industries. In October 2025, it opened a new manufacturing facility and Innovation Centre in Caerphilly County, Wales. Its product range includes battery and thermal management solutions for electric vehicles.
Where is Senior Flexonics headquartered?
Senior Flexonics is headquartered in Bartlett, Illinois (300 East Devon Avenue, Bartlett, Illinois, 60103).
When was Senior Flexonics founded?
Senior Flexonics was founded in 1902.
How big is Senior Flexonics?
Senior Flexonics has an estimated 500-1,000 employees, with revenue in the $250-500M range (estimated).
What certifications does Senior Flexonics hold?
Senior Flexonics lists IATF 16949 · ISO/TS 16949 on its website. Confirm the certified scope for the specific plant producing your part.
Does Senior Flexonics import from overseas suppliers?
US customs bill-of-lading records show 583 inbound shipments for Senior Flexonics, with top origins including India · Vietnam · Taiwan · China.
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Last verified Nov 2026. Is this your company? Request a correction.
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