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TMI Group of Companies

TMI Group of Companies is a privately owned international manufacturer and marketer of physical property testing instruments for packaging, paper, plastics, coatings, textiles, adhesives, and related industries.

Last updated August 26, 2026

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Overview

TMI Group of Companies is an industrial testing-equipment organization headquartered in New Castle, Delaware. It supplies instruments used to measure the physical properties and performance of materials and finished products across a range of manufacturing and converting industries. Its served sectors include packaging, paper, pulp, plastic film, foil, inks, coatings, nonwoven materials, textiles, adhesives, and corrugated products. The organization traces its origins to 1931, when it was established in New York primarily as a distributor of laboratory testing instruments. Over time, TMI expanded beyond distribution into the design and manufacture of testing equipment. This development positioned the group as a specialist supplier for laboratories, quality-control departments, research teams, and production environments that require repeatable measurements of material strength, seal performance, friction, compression, thickness, and other physical characteristics. The available reference material does not provide a complete product catalogue or identify individual instruments by model, so the brand is best understood at the level of its industrial testing-equipment portfolio rather than as a consumer-facing product label. The group operates through a collection of specialist and regional companies. The named entities include Testing Machines Inc. in Delaware, Büchel BV in the Netherlands, Fibro System AB in Sweden, Lako Seal Testers in Delaware, TMI Canada, and TMI Shanghai Ltd. in China. This structure combines manufacturing and testing expertise with geographic coverage in North America, Europe, and Asia. The companies serve sectors in which material consistency and package integrity are important to production quality, regulatory compliance, and customer acceptance. A significant period of expansion began after 2009, when the group completed five global acquisitions according to the cited reference material. The specific acquisition targets and dates are not identified in the available source, but the expansion indicates a strategy of broadening the organization’s technology base and international reach. In 2010, TMI moved its headquarters from Ronkonkoma, New York, to a 20,000-square-foot facility in New Castle, Delaware. The facility was described as a green-energy building equipped with solar panels, geothermal heating and cooling, and LED lighting. TMI received the Delaware Small Business Administration’s Family Owned Business of the Year award in 2011. On March 14, 2014, the group was acquired by Union Park Capital, a Boston-based private-equity firm. The available material does not disclose transaction value, post-acquisition financial performance, or subsequent ownership changes. TMI’s present corporate identity is therefore defined by its specialist industrial-testing activities, its portfolio of operating companies, and its international customer and distribution footprint rather than by public-market activity or consumer branding.

History

TMI Group of Companies began in New York in 1931 as a distributor of laboratory testing instruments. Its original role was primarily commercial: it supplied equipment made for laboratory measurement rather than operating solely as a manufacturer. Over the decades, the organization broadened its capabilities and moved into the design and manufacture of testing instruments, creating a more integrated model that combined distribution, technical development, production, and customer support. The group’s equipment is associated with industries that convert, print, coat, laminate, bond, or otherwise process materials into industrial and consumer products. These include packaging, paper, pulp, plastic film, foil, inks, coatings, nonwovens, textiles, adhesives, and corrugated materials. Testing in these sectors supports quality assurance and process control by helping manufacturers evaluate the physical behavior and integrity of materials and packages. The available source does not enumerate the full range of test methods or instrument models, but it identifies TMI as a supplier of physical-property testing instruments across these industries. TMI developed an international group structure that includes Testing Machines Inc. and Lako Seal Testers in Delaware, TMI Canada, TMI Shanghai Ltd. in China, Büchel BV in the Netherlands, and Fibro System AB in Sweden. These businesses give the organization a presence spanning North America, Europe, and Asia, while also reflecting the group’s use of specialist operating companies. The reference material states that TMI made five global acquisitions beginning in 2009. The individual targets and transaction dates are not specified in the available material, so the acquisitions can be documented as a period of international expansion but not described in detail. In 2010, TMI moved its headquarters from Ronkonkoma, New York, to New Castle, Delaware. The new headquarters was described as a 20,000-square-foot green-energy facility. Its stated features included 160 solar panels, geothermal heating and cooling, and LED lighting. The move represented a physical and administrative change in the company’s development and established Delaware as the group’s headquarters location in the cited account. The company received the Delaware Small Business Administration’s Family Owned Business of the Year award in 2011. This recognition connected TMI’s operating history with its family-business identity, although the source does not provide the award’s selection criteria or identify the specific family members involved in management. On March 14, 2014, Union Park Capital, a Boston-based private-equity firm, acquired TMI Group of Companies. The transaction marked a change in ownership, but the cited material does not report the purchase price, financing, management changes, or subsequent operating results. No reliable information in the supplied references supports a fuller account of post-acquisition developments. TMI is consequently documented as a private industrial-testing group whose history runs from laboratory-equipment distribution to international design, manufacturing, and marketing of physical-property testing systems.

  • 2014

    Acquisition by Union Park Capital

    [1]

    Union Park Capital acquires TMI Group of Companies on March 14.

  • 2011

    Family Owned Business of the Year award

    [1]

    TMI receives the Delaware Small Business Administration’s Family Owned Business of the Year award.

  • 2010

    Headquarters moves to New Castle

    [1]

    TMI relocates its headquarters from Ronkonkoma, New York, to a 20,000-square-foot green-energy facility in New Castle, Delaware.

  • 2009

    International acquisition program begins

    [1]

    The group begins a period during which it makes five global acquisitions, according to the cited reference.

  • 1931

    TMI is founded in New York

    [1]

    TMI begins operations as a distributor of laboratory testing instruments.

Products and positioning

A specialist industrial-testing group serving laboratories, quality-control operations, research teams, and manufacturers that need physical-property measurements for packaging, paper, plastics, coatings, textiles, adhesives, and related materials.

  • Industrial testing equipment

    Physical property testing instruments

    TMI’s core offering is a portfolio of instruments used to evaluate the physical properties of materials and manufactured products. The equipment serves laboratory, research, quality-control, and production applications across packaging, paper, pulp, plastics, films, foils, inks, coatings, nonwovens, textiles, adhesives, and corrugated materials. The supplied source does not identify individual models or specify a complete set of test methods.

  • Packaging testing

    Packaging and seal testing equipment

    The group supplies testing equipment for packaging-related applications, including seal-testing activities represented by Lako Seal Testers. Such equipment is used to assess package or seal integrity and related physical performance. Specific product names, technical specifications, and launch dates are not provided in the available reference material.

  • Material testing

    Paper, film, foil, textile, coating, and adhesive testing systems

    TMI’s broader sector portfolio covers instruments for paper and pulp, plastic film and foil, inks and coatings, nonwoven materials, textiles, adhesives, and corrugated products. These systems support comparative material evaluation and manufacturing quality control. The source establishes the served industries but does not provide a model-level catalogue or individual product launch history.

Brand decisions

  • 2014

    Acquisition by Union Park CapitalM&A

    Background

    TMI had expanded its international group structure and completed five global acquisitions beginning in 2009, according to the reference material.

    Action taken

    Union Park Capital, a Boston-based private-equity firm, acquired TMI Group of Companies on March 14, 2014.

    Aftermath

    The acquisition changed the group’s ownership. The available source does not report the purchase price, management changes, integration plans, or subsequent financial results.

  • 2010

    Relocation to a green-energy headquartersStrategy

    Background

    Following its development from an instrument distributor into a design and manufacturing group, TMI moved its headquarters from Ronkonkoma, New York, to New Castle, Delaware.

    Action taken

    The company established its headquarters in a 20,000-square-foot facility described as using 160 solar panels, geothermal heating and cooling, and LED lighting.

    Aftermath

    The move made New Castle the group’s headquarters location in the cited account. No further operational or financial consequences are reported in the supplied material.

Recent events

  • 2014

    Union Park Capital acquires TMI Group of Companies[1]

    M&A

    On March 14, 2014, Boston-based private-equity firm Union Park Capital acquired TMI Group of Companies. The available reference does not disclose the transaction value or detailed terms.

  • 2011

    TMI receives Delaware Small Business Administration Family Owned Business of the Year award[1]

    Other

    TMI was presented with the Delaware Small Business Administration’s Family Owned Business of the Year award.

  • 2010

    TMI Group of Companies relocates headquarters to New Castle, Delaware[1]

    Other

    The group moved its headquarters from Ronkonkoma, New York, to a 20,000-square-foot facility in New Castle, Delaware. The facility was described as incorporating solar power, geothermal heating and cooling, and LED lighting.

Sources1 sources

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