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Largest Industrial & Mechanical Companies in Delaware (2026)

Factur's directory lists 55,486 industrial & mechanical companies in Delaware. These are the 10 largest of them by annual revenue, led by Muller UK & Ireland Group LLP ($10.1B), University of Delaware ($1.7B) and Corporation Service Co ($1.3B).

Size mix: of the 55,481 with a known headcount, 96% have 1-50 employees, 3.3% 51-200, 356 companies 201-1000, 46 companies 1001-5000 and 9 companies 5001+. 130 employ more than 500 people.

The 10 largest industrial & mechanical companies in Delaware by annual revenue

#CompanyCityEmployeesAnnual revenue
1Muller UK & Ireland Group LLP—32,000$10.1B
2University of DelawareNewark14,114$1.7B
3Corporation Service CoWilmington8,000$1.3B
4Expedia Partner SolutionsDover3,000$1B
5Chivas Brothers LtdDumbarton2,236$917M
6InterDigital IncWilmington460$834M
7Head Field Solutions Pvt LtdWilmington14,792$814M
8Allen HarimMillsboro1,817$788M
9Mwidm IncWilmington3,500$740M
10State of DelawareWilmington4,512$727M

How this list is ranked

Companies are ranked by annual revenue (USD) as recorded on each company's profile in the Factur directory, highest first; companies with the same revenue are ordered by employee count. Only companies with a positive revenue figure on file are ranked, so a large private company with no reported revenue can be missing. The list covers companies whose record places them in Delaware and whose Factur industry is Industrial & mechanical. Figures are a snapshot of the directory, refreshed when the rankings are regenerated; open a profile for its current data.