Companies in Pasadena

Behind every street in Pasadena sits a business. 72,537 of them, to be exact, all registered in the United States business register. The biggest single industry is general business services with 4,306 companies, roughly 6% of everything that does business in the city.

72,537 businesses indexed

Tetra Tech, INC.Tetra Tech, INC.
Showing 25 of 72,537 companies
Company NameCountryCityAddress 1State/ProvincePostal CodeWebsiteFounding YearYearly Revenue in U.S. DollarsEmployees TotalBusiness Legal Type - DescriptionNumber of Companies in GroupCompany Registration Number
1
Tetra Tech, INC.
USA
Pasadena
3475 E Foothill Blvd
Los Angeles
91107-6024
tetratech.*****
1966
$5,442,590,000
25,050
Corporation
654
N/A
2
East West Bancorp, INC.
USA
Pasadena
135 N Los Robles Ave Fl 7
Los Angeles
91101-4525
eastwestbank.*****
1998
$4,672,623,000
3,350
Corporation
118
2939153
3
East West Bank
USA
Pasadena
135 N Los Robles Ave Fl 7
Los Angeles
91101-4525
eastwestbank.*****
1973
$4,519,086,000
3,098
Corporation
118
952795851
4
California Institute Of Technology
USA
Pasadena
1200 E California Blvd
Los Angeles
91125-0001
caltech.*****
1891
$3,240,729,000
6,553
Corporation
51
0020720
5
Alexandria Real Estate Equities, INC.
USA
Pasadena
26 N Euclid Ave
Los Angeles
91101-1961
are.*****
1994
$3,026,556,000
514
Corporation
73
D03996790
6
Southern California Permanente Medical Group
USA
Pasadena
393 Walnut Dr
Los Angeles
91107-4922
kp.*****
1981
$1,778,115,664
7,969
Corporation
1275
1044035
7
Acco Engineered Systems, INC.
USA
Pasadena
888 E Walnut St
Los Angeles
91101-1895
accoes.*****
1934
$1,512,722,000
1,950
Corporation
34
0246091
8
Total Safety U.S., INC.
USA
Pasadena
4210 Malone Dr
Harris
77507-1841
totalsafety.*****
2003
$950,577,023
2,500
Corporation
120
3728630
9
Dine Brands Global, INC.
USA
Pasadena
10 W Walnut St Fl 5
Los Angeles
91103-3633
dinebrands.*****
1958
$879,300,000
992
Corporation
200
824342
10
Arrowhead Pharmaceuticals, INC.
USA
Pasadena
177 E Colorado Blvd Ste 700
Los Angeles
91105-1976
arrowheadpharma.*****
1989
$829,448,000
711
Corporation
15
3354811
11
Pasadena Hospital Association, LTD.
USA
Pasadena
100 W California Blvd
Los Angeles
91105-3010
healthy.*****
1932
$786,533,006
2,800
Corporation
17
0021233
12
The Pasadena Independent School District Alumni Association Incorporated
USA
Pasadena
3920 Mickey Gilley Blvd
Harris
77505-3005
www1.*****
1895
$664,848,283
5,000
Corporation
70
0151783601
13
Floworks International LLC
USA
Pasadena
3750 Pasadena Fwy
Harris
77503-1134
gofloworks.*****
2023
$663,042,256
1,021
Corporation
80
5116249
14
S-I Intermediate Holdings, INC.
USA
Pasadena
3750 Hwy 225
Harris
77503
N/A
2012
$663,042,256
1,021
Corporation
80
N/A
15
Floworks USA LP
USA
Pasadena
3750 Highway 225
Harris
77503
gofloworks.*****
1996
$509,087,620
1,021
Partnership of unknown type
80
2620918
16
Cit Bank, N.A.
USA
Pasadena
75 N Fair Oaks Ave Ste C
Los Angeles
91103-3647
cit.*****
2022
$498,618,677
850
Corporation
883
N/A
17
Sulzer Pumps (us) INC.
USA
Pasadena
1906 Jasmine Dr
Harris
77503-3224
sulzer.*****
1988
$471,352,858
908
Corporation
428
2095029
18
Calstart, INC.
USA
Pasadena
48 S Chester Ave
Los Angeles
91106-3105
calstart.*****
1992
$396,843,381
25
Corporation
3
1819492
19
Chca Bayshore, L.P.
USA
Pasadena
4000 Spencer Hwy
Harris
77504-1202
hcahoustonhealthcare.*****
2014
$389,002,319
48
Partnership of unknown type
3863
3126736
20
J. G. Boswell Company
USA
Pasadena
101 W Walnut St
Los Angeles
91103
jgboswell.*****
1921
$370,202,424
2,000
Corporation
13
0116038
21
Wescom Central Credit Union
USA
Pasadena
123 S Marengo Ave
Los Angeles
91101-2428
wescom.*****
1934
$369,054,454
604
Corporation
30
0160718
22
Pasadena Unified School District
USA
Pasadena
351 S Hudson Ave
Los Angeles
91101
pusd.*****
1874
$363,933,626
2,840
Corporation
47
N/A
23
Inter-Con Security Systems, INC.
USA
Pasadena
210 S de Lacey Ave
Los Angeles
91105-2048
icsecurity.*****
1973
$362,192,538
25,000
Corporation
42
953020192
24
Kaneka Americas Holding, INC.
USA
Pasadena
6250 Underwood Rd
Harris
77507-1061
kaneka.*****
1982
$341,290,321
300
Corporation
354
0060686100
25
Operating Engineers Health & Welfare Fund
USA
Pasadena
100 Corson St
Los Angeles
91103-3892
oefunds.*****
2014
$299,981,733
6
Corporation
N/A
956034886

Showing 25 of 72,537 companies

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Largest industries in Pasadena

The biggest industry groups in Pasadena by registered company count, with the top five companies by revenue in each.

General business services

4,306 companies

SIC 7389

View all 4,306 in our tool →

Restaurants and eating places

2,284 companies

SIC 5812

View all 2,284 in our tool →

Business Consulting Services, Not Elsewhere Classified

1,916 companies

SIC 8748

View all 1,916 in our tool →

Investors, Not Elsewhere Classified

1,879 companies

SIC 6799

View all 1,879 in our tool →

Operators of Nonresidential Buildings

1,685 companies

SIC 6512

View all 1,685 in our tool →

Real estate agents and managers

1,673 companies

SIC 6531

View all 1,673 in our tool →

General Contractors-Single-Family Houses

1,639 companies

SIC 1521

View all 1,639 in our tool →

Offices and Clinics of Doctors of Medicine

1,583 companies

SIC 8011

View all 1,583 in our tool →

All industries in Pasadena

Together, general business services, restaurants and eating places and Business Consulting Services, Not Elsewhere Classified make up the top three industries in Pasadena, accounting for 12% of the city's commercial activity. The oldest company we can find in Pasadena is Pasadena Unified School District, founded in 1874, with Pasadena Presbyterian Church Foundation not far behind. They're still here, along with hundreds of thousands of others.

From medical practices and engineering offices to restaurants and retail, the local mix here looks like a healthy cross-section of American city life rather than one dominant industry. All of them are in our data. Search Pasadena businesses in the live tool below, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.

72,537companies
  • Nonclassifiable Establishments11,653
  • Business Services, Not Elsewhere Classified4,306
  • Eating Places2,284
  • Business Consulting Services, Not Elsewhere Classified1,916
  • Investors, Not Elsewhere Classified1,879
  • Operators of Nonresidential Buildings1,685
  • Real Estate Agents and Managers1,673
  • General Contractors-Single-Family Houses1,639
  • Offices and Clinics of Doctors of Medicine1,583
  • Legal Services1,407
  • Other industries42,512

How you receive Pasadena business data

Choose the delivery method that fits your workflow. Every record includes 50+ fields per legal entity, sourced from official United States business registers.

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Live search tool

Search Pasadena companies in our online tool with filters for industry, size, revenue and SIC code. Export your selection.

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Frequently Asked Questions

Common questions about searching, filtering, and ordering Pasadena company data.

Our Pasadena business directory currently lists every registered legal entity with a Pasadena address in the official United States business register. The exact count is shown live at the top of this page.
Pasadena records are sourced directly from the official United States business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.
Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Pasadena list never goes stale.
Yes. Every Pasadena record is tagged with SIC industry codes. You can request your directory filtered by one or several SIC codes, employee size bands, or revenue thresholds.
Excel (.xlsx), CSV, and JSON. For API customers, data is streamed as paginated JSON. Custom formats (Parquet, SQL dump) are available on request.
Yes. We only deliver legal-entity data and publicly listed business contact details. We do not include personal data of natural persons unless required by the company register itself (e.g. sole traders).
Yes. Request a free 100-record sample of Pasadena data and we will email it within one business day.
Yes. The full Pasadena dataset is available through our REST API with the same filters as our directory builder. See our API page for pricing tiers.
Standard Excel and CSV directories are delivered within 24 hours. API access is provisioned within one business day. Rush delivery (same-day) is available on request.
Snapshot data going back 3 years is available for most fields, and 7+ years for core registry fields. Useful for trend analysis and churn studies - ask for a custom quote.

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