Company lists · Data refreshed September 2026
Top 25 Clamshell packaging manufacturers based in the United States
RevenueBase identified 162 clamshell packaging manufacturers headquartered in the United States as of September 2026 and tracks 4,752 professional contacts across them, including 1,539 with verified work emails. Cleveland is the largest hub.
This list covers clamshell packaging 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 clamshell packaging manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 855 contacts → | ||||
Strong evidence “Founded in 1969, Genpak is a leading manufacturer and innovator of foodservice packaging.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 391 contacts → | ||||
Indirect evidence “Rohrer believes TRUE PARTNERS make the perfect package.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 338 contacts → | ||||
Partial evidence “Based in Buffalo Grove, Illinois, PPC Flexible Packaging is a leading provider of cleanroom and consumer packaging for the healthcare, snack, organic, “better-for-you,”produce and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 201 contacts → | ||||
Strong evidence “Golden West Packaging Group is one of the largest and fastest growing independent manufacturers of custom packaging products in North America.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 159 contacts → | ||||
Partial evidence “Unicorr is among the largest converters of custom corrugated products and protective packaging in the Northeast.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 119 contacts → | ||||
Indirect evidence “Display Pack is a U.S.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 116 contacts → | ||||
Indirect evidence “AFP, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 114 contacts → | ||||
Partial evidence “For over 60 years, McLean Packaging has been the proven, single source for innovative, high-impact packaging solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 100 contacts → | ||||
Strong evidence “Induspac is a leading manufacturer and designer of a wide range of custom protective and specialty packaging products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 93 contacts → | ||||
Strong evidence “We’re the Northwest’s largest independent corrugated box manufacturer with a well deserved reputation for producing the very best in packaging products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 83 contacts → | ||||
Strong evidence “International Packaging Corporation (Interpak) is a family-owned, third-generation company and a leading custom manufacturer and distributor of jewelry, gift, and presentation…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 82 contacts → | ||||
Partial evidence “For 55+ years, Wynalda Packaging has provided its customers with premium packaging solutions, offering superior quality and unmatched turnaround times.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 82 contacts → | ||||
Strong evidence “As a manufacturer of rigid set-up boxes and corrugated packaging and a distributor of packaging supplies, All Packaging can create a look that’s right for you.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 78 contacts → | ||||
Partial evidence “Temkin's legacy of personalized customer service, distinctive design, and prompt delivery since 1980 has earned us our place as a leading domestic manufacturer of flexible film…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 74 contacts → | ||||
Strong evidence “AVC Corporation is a global retail packaging manufacturer with more than 38 years of experience in custom retail packaging.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 72 contacts → | ||||
Indirect evidence “Welcome to Accord Carton Folding cartons aren’t just containers.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 65 contacts → | ||||
Partial evidence “Peninsula Plastics has been providing custom packaging solutions since 1980.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 60 contacts → | ||||
Strong evidence “CENTRAL PACKAGE & DISPLAY Delivering More Than Packaging Central Package & Display is a leading manufacturer of Corrugated Protective packaging, POP displays, and POS packaging.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 60 contacts → | ||||
Partial evidence “For more than twenty years, Creative Packaging has been providing custom designed solutions and products for many industries, including protective packaging, construction…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 59 contacts → | ||||
Partial evidence “Peachtree Packaging specializes in the development of creative, functional, and structurally sound corrugated retail packaging and point-of-purchase displays.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 59 contacts → | ||||
Partial evidence “Vista Color is a leading independent packaging company serving customers in the Caribbean, Latin American and the United States, in a variety of industries primarily in…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 50 contacts → | ||||
Partial evidence “At Complete Design & Packaging we see a box as a six-sided value proposition that protects products, projects quality and presents brands.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Indirect evidence “The Seattle Box Company, originally established as Queen City Manufacturing Company, was founded by Jacob Nist in 1889 and now has over 130 years of service under the same family…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 45 contacts → | ||||
Strong evidence “Established in 1985, First Choice Packaging (FCP) is a first-tier custom packaging solutions manufacturer that provides complete custom thermoform packaging, including clamshell…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 44 contacts → | ||||
Strong evidence “Established in 1918, Tilsner Carton Company manufactures corrugated boxes, e-commerce packaging, protective packaging, trays, retail packaging, promotional packaging, gift…” 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: clamshell packaging 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 clamshell packaging manufacturers.
- Partial evidence
- Its own public description names part of clamshell packaging manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name clamshell packaging 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 162 clamshell packaging manufacturers based in the United States
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Clamshell packaging 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 162 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 clamshell packaging 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 “clamshell packaging 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 clamshell packaging 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 clamshell packaging 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, 1,539 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 clamshell packaging 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 clamshell packaging manufacturers are there based in the United States?
RevenueBase identified 162 clamshell packaging 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?
Genpak, headquartered in Charlotte, tops this list with the largest team on record.
Which city has the most clamshell packaging manufacturers?
Cleveland leads with 3 headquartered companies, followed by Hayward (3) and Los Angeles (3).
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 1,539 verified decision-maker contacts tracked across these 162 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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