Company lists · Data refreshed September 2026
Top 25 Heat sealer manufacturers based in the United States
RevenueBase identified 67 heat sealer manufacturers headquartered in the United States as of September 2026 and tracks 1,175 professional contacts across them, including 503 with verified work emails. Kansas City is the largest hub.
This list covers heat sealer manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest heat sealer manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 311 contacts → | ||||
Indirect evidence “The MULTIVAC Group is one of the world's leading providers of integrated processing, packaging, automation, labeling, inspection, and digital solutions for the food, medical…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 112 contacts → | ||||
Indirect evidence “Automated packaging systems and advanced packaging materials for the food industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 67 contacts → | ||||
Strong evidence “Ossid is a leading manufacturer of tray sealers, overwrappers, flow wrappers, weigh-price-labelers, case scales and horizontal-form-fill-seal machinery.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 55 contacts → | ||||
Indirect evidence “For over 60 years, PAC Machinery has been a trusted leader in the flexible packaging industry, providing innovative solutions that elevate packaging operations for businesses…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 53 contacts → | ||||
Strong evidence “Miller Weldmaster is an internationally recognized company that manufactures heat seal thermoplastics machines and automated packaging solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 50 contacts → | ||||
Partial evidence “BestPack/BPX Solutions are global leaders in innovative, customizable packaging, sealing, and shrink-wrapping solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 43 contacts → | ||||
Partial evidence “Custom sealable pouches and packaging for all industries” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 35 contacts → | ||||
Strong evidence “For more than 90 years, Thermopatch an Avery Dennison Company has held a premier position in developing heat seal machines, labels, direct imprint equipment, mending material and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 31 contacts → | ||||
Indirect evidence “LAKO are a leader in the flexible packaging industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 31 contacts → | ||||
Strong evidence “Heat Seal is an industry leading producer of manual and semi-automatic L Sealers and Shrink Tunnels.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 29 contacts → | ||||
Indirect evidence “Welcome to Belco Packaging Systems, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 24 contacts → | ||||
Indirect evidence “At Formers International, everything starts with strong partnerships.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 22 contacts → | ||||
Partial evidence “Algus Packaging is the premium provider of seal machines, tooling, automation, and thermoformed plastic packaging.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 20 contacts → | ||||
Partial evidence “Rennco, a ProMach brand, is a leading manufacturer of vertical packaging machinery and automation for various markets including Food Service Disposables, E-Commerce, and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Partial evidence “Since being founded 1985 Rollstock™ has been a global leader in horizontal thermoform fill-seal packaging.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Strong evidence “Accu-Seal designs and manufactures Impulse Heat Sealers and Vacuum Sealers for packaging virtually any medical, industrial, electronics, chemical, pharmaceutical, food and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Partial evidence “Thermex-Thermatron Systems is the industry leader in manufacturing Industrial RF Welding and RF Sealing Equipment, Industrial Microwave Systems, and Industrial Thermal Press…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Partial evidence “Ameripak is a veteran-owned packaging equipment distributor and solutions provider serving manufacturers, warehouses, distributors, and roll-forming operations throughout North…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “SIMS Manufacturing was founded in 1969 by Russ Sims when he invented the first fully automatic impact case printing machine.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 contacts → | ||||
Strong evidence “PackworldUSA is a leading manufacturer of validatable medical heat sealers servicing the medical device, pharmaceutical and bio-tech industries.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Indirect evidence “Precision PMD is a growing custom engineering and manufacturing company specializing in the food packaging industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Partial evidence “ONEX RF designs and manufactures 1.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “Cosmos Electronic Machine Corporation, founded in 1945, along with its wholly owned subsidiaries, Kabar Manufacturing Corporation and D&L Die Corporation is the largest…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Partial evidence “Wilpack Packaging offers contract packaging and point of service tamper evident sealing solutions to meet everyone's packaging needs.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: heat sealer manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names heat sealer manufacturers.
- Partial evidence
- Its own public description names part of heat sealer manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name heat sealer manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 67 heat sealer manufacturers based in the United States
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Heat sealer manufacturers based in the United States at a glance
As of Sep 30, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 67 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among heat sealer manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “heat sealer manufacturers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names heat sealer manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among heat sealer manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 503 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 30, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names heat sealer manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many heat sealer manufacturers are there based in the United States?
RevenueBase identified 67 heat sealer manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Multivac USA, headquartered in Kansas City, tops this list with the largest team on record.
Which city has the most heat sealer manufacturers?
Kansas City leads with 3 headquartered companies, followed by Farmingdale (2) and Los Angeles (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 503 verified decision-maker contacts tracked across these 67 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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