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Delaware— USA

Companies in Delaware

168.7K companies registered in Delaware, sourced from official business registers and enriched with industry, size, location and contact data. Below: the largest companies by reported revenue, and how the Delaware business base breaks down by industry and headcount.

168.7K
companies
#45
of 50 states
0.3%
of US records
15
industries ranked
September 2026
data updated

Part of the United States company directory.

Rankings

Largest companies in Delaware

By reported (actual) revenue, updated September 2026. Public-sector entities are excluded.

#CompanyIndustryCityRevenue (USD)Employees
1Mercadolibre, Inc.Combined office administrative service activitiesDover$28.9B123,670
2Marvell Technology, Inc.Manufacture of electronic components and boardsWilmington Manor$8.2B7,480
3Barclays Bank DelawareOther monetary intermediationWilmington Manor$6.6B4,330
4The Chemours CompanyManufacture of other chemical products n.e.c.Wilmington Manor$5.8B5,700
5W. L. Gore & Associates, Inc.Manufacture of wiring and wiring devicesNewark$5.3B10,000
6Incyte CorporationResearch and experimental development on biotechnologyWilmington Manor$5.1B2,844
7Qnity Electronics, Inc.Manufacture of electronic components and boardsWilmington Manor$4.8B10,000
8SLM CorporationOther credit grantingNewark$3.1B1,788
9Enovis CorporationOther manufacturing n.e.c.Wilmington Manor$2.2B7,367
10American Online Giving Foundation, Inc.Trusts, funds and similar financial entitiesNewark$2.1B6
11Delmarva Power & Light CompanyElectric power generation, transmission and distributionNewark$2B945
12Ashland Inc.Wholesale of chemical productsWilmington Manor$1.8B2,900
13Energy Technologies Holdings LLCManufacture of batteries and accumulatorsWilmington Manor$1.5B4,917
14University of DelawareTertiary educationNewark$1.5B3,600
15Wilmington Savings Fund SocietyOther monetary intermediationWilmington Manor$1.4B2,283
16Wsfs Financial CorporationOther monetary intermediationWilmington Manor$1.4B2,335
17Bayhealth Medical Center, Inc.Hospital activitiesDover$1.1B2,790
18The Bancorp IncOther monetary intermediationWilmington Manor$880M733
19Interdigital, Inc.Manufacture of consumer electronicsWilmington Manor$834M460
20Beebe Medical Center, Inc.Hospital activitiesLewes$682M1,606
21Wilmington Savings Fund Society, FsbOther monetary intermediationWilmington Manor$622M2,500
22Phreesia, Inc.Software publishingWilmington Manor$481M1,789
23Interdigital Wireless, Inc.Manufacture of consumer electronicsWilmington Manor$458M390
24Bayhealth Hospital, Sussex CampusHospital activitiesMilford$455M1
25Global Indemnity Group, LLCNon-life insuranceWilmington Manor$450M286

Top 25 by revenue reported to the register. Companies filing no revenue figure are not ranked, whatever their size.

Mercadolibre, Inc. leads Delaware at $28.9B in reported revenue, from Dover.

Coverage

Companies by industry in Delaware

The industries holding the most companies, by NACE activity code.

Other business support service activities n.e.c.8299
16,208
Computer programming activities6201
12,880
Business and other management consultancy activities7022
8,294
Construction of residential and non-residential buildings4120
4,854
Trusts, funds and similar financial entities6430
4,600
Software publishing5820
3,974
Restaurants and mobile food service activities5610
3,928
Activities of holding companies6420
3,228
Other human health activities8690
3,074
General medical practice activities8621
3,073
Real estate agencies6831
3,064
Activities of other membership organisations n.e.c.9499
2,334
Retail sale of flowers, plants, seeds, fertilisers, pet animals and pet food in specialised stores4776
2,216
Activities of religious organisations9491
2,193
Maintenance and repair of motor vehicles4520
2,155

Ranked by number of companies. Each record carries its NACE code alongside SIC and NAICS, so the same segment can be pulled in any of the three schemes.

Browse these directories

Other business support service activities n.e.c. is the largest activity in Delaware, with 16,208 companies.

Distribution

Company size

By number of employees.

1-4
139,701
5-9
15,358
10-19
5,755
20-49
3,173
50-99
1,331
100-199
580
200-499
352
500-999
118
1000+
193

2,179 companies have no disclosed headcount (excluded from the chart).

84% of Delaware companies with a disclosed headcount fall in the 1-4 employee band.

Data coverage

What a Delaware record carries

Share of the state's companies holding each contact field.

29%

with a website

67%

with a phone number

18%

with an email address

Counted against the 168.7K companies in Delaware. Firmographics — industry, size, address, status — are present on every record.

FAQ

Companies in Delaware — frequently asked questions

There are 168.7K companies registered in Delaware in the InfobelPRO database, across every sector from sole proprietorships to large enterprises.
By revenue reported to the register, the largest company headquartered in Delaware is Mercadolibre, Inc., based in Dover, in combined office administrative service activities.
Other business support service activities n.e.c. (16,208 companies), Computer programming activities (12,880 companies), Business and other management consultancy activities (8,294 companies) lead the Delaware business base by number of companies.
Registered name and address, industry classification in NACE, SIC and NAICS, company status and legal form, employee band, reported revenue where filed, and contact fields — website, phone and email — where available.
Yes. The Delaware file is available as a bulk export or through the API, filtered by industry, company size, city or revenue. Licensing is on volume and use, not per seat.

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