Legacy Technologies

What Legacy Technologies does

Legacy Technologies LLC, operating under the trade name LTI, is a privately held custom manufacturer of hermetic glass-to-metal seals and electronic headers headquartered in a state-of-the-art consolidated facility in Mission, Kansas (since May 2008). The company's lineage is rooted in two of the oldest names in the electronic header industry — Houston Electronics Corporation (founded 1959 in Kane, Pennsylvania) and HES International (founded 1973 in Kansas City, Kansas) — and was independently formed when LTI purchased the HES Kansas City operation from Corning Inc. on April 1, 2003, retaining key personnel and equipment.

The technical core is a proprietary oxide-free hermetic sealing process offered through both matched seal and compression seal methods, supporting a broad metal envelope that includes standard steels, stainless steel, Kovar, and molybdenum as well as exotic alloys such as Titanium that are incompatible with conventional oxide-forming sealing processes. This core feeds a vertically integrated product portfolio: cold weld frequency control bases (HC-35 through HC-47 and low-profile variants), resistance weld frequency control bases (HC-50, HC-52, HC-53), single- and multi-lead feedthrough connectors and squib devices, DIP and hybrid packages, solder seal discreet flat packages, bath tub headers, energetic devices for defense applications, RF microwave connectors for 10 GBIT applications, and TO-250 power packages. Vertical integration extends to in-house plating (electrolytic gold, nickel, tin-lead, copper, silver, etc., verified via XRF), precision metal stamping with .002" CNC tolerance and piercing down to .020", die-making, forming, welding of fine metallic ribbon, and electronic header finishing with hermeticity typically validated at 1x10^-8 cc/sec and mechanical strength up to 20,000 PSI. Operations are conducted to ISO 9001 standards.

The business model is direct B2B custom manufacturing: customers in aerospace, defense (including energetics), telecommunications (frequency control), medical, automotive, and sensors/photonics submit design specifications and receive custom-quoted components, with sales originating from direct inquiries via telephone, email, the company website, LinkedIn/Facebook presence, and a ThomasNet verified supplier profile. There is no e-commerce or self-serve channel, no publicly disclosed pricing, no disclosed customer logos, no disclosed headcount, and no funding history. The company self-identifies as "the world's leading manufacturer of high reliability precision quartz crystal holders" and serves a single geographic region (North America).

Name

Legacy Technologies

Legal name

Legacy Technologies LLC

Website

https://legacytechnologies.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

51–100 employees

Short description

Legacy Technologies LLC (LTI) is a privately held custom manufacturer of hermetic glass-to-metal seals and electronic headers, serving aerospace, defense, telecommunications, medical, automotive, and sensor customers from its vertically integrated facility in Mission, Kansas.

Ownership category

akta.pro rank

Product category

Hermetic Seals Manufacturing

NAICS

Other Electronic Component Manufacturing (334419)

SIC

Electronic Components, Nec (3679)

akta.pro industry

PRIMARYHDAHAEAL

Back-End/Advanced Packaging Equipment (Die Attach/Wire Bond/Flip-Chip/TCB)

Hardware, Technology & Telecom/Semiconductors & Electronic Components/Semiconductor Manufacturing Equipment

Keywords

• Hermetic glass-to-metal seals
• Electronic header manufacturing
• Frequency control components
• Feedthrough connectors
• Precision metal stamping

Headquarters

HQ city

Mission

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Custom Hermetic Glass-to-Metal Seals: Design, development, and manufacture of custom hermetic glass-to-metal seals (both matched seal and compression seal) sold as finished components to aerospace, telecommunications, medical, automotive, and sensor customers. Revenue is generated through direct custom manufacturing orders based on customer specifications.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Legacy Technologies LLC is a custom manufacturer of hermetic glass-to-metal seals and electronic headers, building finished components to customer design specifications using a proprietary oxide-free sealing process. The company produces frequency control bases, feedthrough connectors, DIP packages, discreet flat packages, bath tub and low-profile headers, energetic devices, RF microwave connectors, and TO-250 power packages for aerospace, defense, telecommunications, medical, automotive, and sensor customers. Supporting services include in-house plating, precision metal stamping, and electronic header finishing.

Product overview

Legacy Technologies LLC is a manufacturer of hermetic glass-to-metal seals serving the frequency control, aerospace, defense, telecommunications, medical, automotive, sensor, laser, and photonics industries. The company operates a vertically integrated, state-of-the-art facility in Mission, Kansas, consolidating operations from Kane, PA and Kansas City facilities. The product portfolio centers on the core Glass-to-Metal Hermetic Seals technology (using a proprietary oxide-free sealing process), which encompasses two primary sealing methods: Cold Weld and Resistance Weld. This core technology feeds into multiple product lines including: Cold Weld Frequency Control Bases (HC-35 through HC-47 series and Low Profile variants), Resistance Weld Frequency Control Bases (HC-50, HC-52, HC-53 series), Feedthrough Connectors (Single Lead and Multi Lead/Squib types), DIP (Dual In-Line Packages) in various sizes, Solder Seal Discreet Flat Packages, Bath Tub Headers, and specialty products such as Energetic Devices, RF Microwave Connectors for 10 GBIT applications, and Sidewalls/Power Packages (TO-250 series). Supporting services include in-house Plating (gold, nickel, tin-lead, copper, silver) and Metal Frequency Control Stamping capabilities. The company also produces hybrid packages with single or multiple pin terminals.

Differentiator

Problem solved

Functional benefit

Products and services

• Glass-to-Metal Hermetic Seals Custom-built hermetic seals that fuse glass and metal using matched seal or compression seal technology to protect sensitive electronics from corrosion, humidity, and harsh environments. Supports a wide range of metals including titanium, steel, stainless steel, Kovar, and molybdenum. Sold to aerospace, telecommunications, medical, automotive, and sensor customers based on their design specifications.
• Cold Weld Frequency Control Bases Hermetic crystal holder bases using cold weld technology, available across HC-35 through HC-47 series in configurations including blank headers, spring mounts, hook mounts, tab mounts, and weld slot mounts. Used by frequency control and telecom customers building precision quartz crystal oscillators.
• Resistance Weld Frequency Control Bases Hermetic crystal holder bases using resistance weld technology, available in HC-50, HC-52, and HC-53 series with blank headers, spring mounts, hook mounts, and weld slot mount configurations. Used by frequency control and telecom customers building precision quartz crystal oscillators.
• Single Lead Feedthrough Connectors Industry-standard hermetic feedthrough connectors available in various lengths, shapes, and finishes, insulated or grounded. Used for brazing, direct glassing, or soldering into packages with mechanical strength up to 20,000 PSI. Designed for aerospace, defense, telecommunications, and sensor applications.
• Multi Lead Feedthrough Connectors (Squib) Diverse multi-lead hermetic feedthrough connectors and squib devices for specialized applications in aerospace, defense, and sensor industries.
• DIP (Dual In-Line Packages) Hermetic dual in-line package headers available in multiple sizes including .498, .493, .775, .795, .996, 1.000, and 1.061 inch variants with various lead counts from 4 to 14 leads. Used for hermetic electronic packaging in industrial, military, and aerospace applications.
• Solder Seal Discreet Flat Packages Solder seal flat package discreet headers in various sizes including .770x.770, .950x.950, 1.003x1.350, 1.460x1.460, and 1.866x2.895 inches with multiple pin grid patterns. Used for hermetic electronic packaging of discrete components and small hybrids.
• Bath Tub Headers Cold weld bath tub style headers available in 4-pin, 10-pin, and HC-39 configurations for frequency control applications.
• Low Profile (CWLP) Headers Compact low profile cold weld crystal bases including HC-35, HC-37, HC-40, and solid body variants with various reference blank diameters for space-constrained frequency control applications.
• Energetic Devices Glass-to-metal feedthrough energetic devices designed for detonation and similar high-reliability applications in the defense industry, serving the largest names in the energetic devices business.
• RF Microwave Connectors RF microwave connectors designed for 10 GBIT applications in telecommunications and specialty hermetic products, supporting high-frequency signal transmission through hermetic package walls.
• Sidewalls and Power Packages (TO-250 Series) Glass and ceramic TO-250 series power packages including TO-254, TO-257, TO-258, TO-259 with Cu, CuW, and Glidcop heat sink base materials. Used for commercial, military, and aerospace power electronics requiring hermetic packaging and thermal management.
• In-House Plating Services In-house plating capabilities including electrolytic gold, electrolytic and electroless nickel, tin-lead, copper, boron, pure tin, silver, and hot tin dipped finishes. Features state-of-the-art X-ray fluorescence equipment with statistical analysis for consistent plating thickness and quality. Meets ISO 9001 standards. Sold to customers needing precision plating for hermetic and electronic components.
• Precision Metal Frequency Control Stamping Precision metal stamping capabilities for material as small as .003" x .030" up to .020" x 4.750", with hole piercing down to .020" diameter and .002" CNC precision tolerance. Operates to ISO 9001 standards. Used to manufacture stampings for frequency control and hermetic seal applications.
• Electronic Header Finishing Quality finishing operations including flattening, piercing, forming, solder dipping, clip welding, and substrate addition. Features quality inspections to AQL standards including hermeticity checks typically at 1X10-8 cc/sec. Sold as a service supporting custom hermetic header production.

Quantifiable outcome

• Mechanical strength up to 20,000 PSI with proper design and processing
• +4 more outcomes

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• TE Connectivity: Diversified global electronics manufacturer with hermetic sealing products and feedthroughs serving aerospace, defense, and industrial markets. Larger and more diversified than LTI but offers directly overlapping hermetic interconnect capabilities.
• Amphenol: Global connector and interconnect leader with significant hermetic connector and aerospace product lines through divisions such as Amphenol Aerospace and Amphenol Fiber Optic Products. Operates in the same end markets with overlapping capabilities but at much greater scale and global reach.
• Moog Inc. Aerospace and defense specialist with hermetic connector and electronic packaging product lines serving military, space, and commercial aviation customers. Comparable defense/aerospace customer focus but as part of a broader motion and control systems portfolio.

Direct peers

• Schott AG: Global leader in specialty glass and glass-to-metal hermetic sealing, with a dedicated Electronic Packaging division producing feedthroughs, headers, and TO packages serving aerospace, medical, and telecommunications customers. Directly comparable product portfolio and customer base to Legacy Technologies.
• Winchester Interconnect (Mercury Systems): Specialty manufacturer of RF, microwave, and hermetic connectors for aerospace, defense, and telecom, including hermetic feedthroughs and headers. Direct competitor in the multi-lead squib and RF microwave hermetic connector space that LTI targets.
• Douglas Electrical Components: US manufacturer of custom hermetic seals, feedthroughs, and hermetic cable assemblies serving aerospace, defense, medical, and industrial markets. Closely comparable custom-build business model and customer base.
• Complete Hermetics: US specialty manufacturer of hermetic seals, headers, and feedthroughs serving the defense, aerospace, and electronic instrumentation markets. Closely comparable niche positioning, custom manufacturing model, and customer overlap with LTI.
• Hermetic Seal Corporation: US-based custom manufacturer of glass-to-metal hermetic seals and electronic headers with a comparable product line spanning feedthroughs, headers, and crystal holders. Direct competitor in matched seal and compression seal methods for aerospace, military, and telecom.
• CeramTec: German manufacturer of ceramic-to-metal and glass-to-metal hermetic seals for medical implants, aerospace, and sensor applications. Comparable technology platform (advanced ceramic sealing) and overlapping customer base in medical and defense electronics.
• Exxelia (Egide): French specialist (formerly Egide) in hermetic packages for aerospace, defense, and telecommunications, with comparable glass-to-metal and ceramic-to-metal sealing capabilities. Directly comparable technology and end markets, particularly in European defense programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/lwe4567eight79
• LinkedInlinkedin.com/company/legacy-technologies-lti-llc

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Legacy Technologies