The companies in Port Washington are predominantly mid-sized firms, with a strong presence in manufacturing and wholesale. Many of these companies, such as Pall Corporation and KMC, have a long history, founded in the mid-20th century or earlier. This indicates a mature industrial base in the area.
Pall Corporation specializes in filtration solutions, while KMC manufactures custom metal products. Global Industrial Company provides industrial products and solutions, and Drive DeVilbiss Healthcare offers innovative healthcare solutions. A notable pattern among these companies is their focus on specialized industrial and wholesale activities.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Pall Corporationpall.com
Filtration, separation, and purification solutions for health, safety, environment, improving product quality, protecting assets, minimizing emissions, and advancing technology. |
5,067 | |||
| 2 |
KMCkmcstampings.com
Established in 1908, this company specializes in manufacturing custom and standard metal products for global OEMs with a focus on quality and innovation |
2,091 | |||
| 3 |
Global Industrial Companyglobalindustrial.com
Providing diverse industrial products and solutions including material handling, janitorial, and maintenance supplies to businesses and institutions. |
1,534 | |||
| 4 |
Pall Life Sciencespall.com
A global leader in filtration and purification solutions, helping diverse customers improve processes, protect patients, enhance manufacturing, and deliver sustainable benefits |
1,480 | |||
| 5 |
Drive DeVilbiss Healthcaredrivemedical.com
Provides innovative healthcare solutions, including mobility, rehabilitation, pressure prevention, respiratory, and homecare products, distributed globally across continents and numerous countries. |
929 | |||
| 6 |
Franklin Energyfranklinenergy.com
Provides comprehensive sustainability solutions focusing on lowering energy costs, reducing carbon emissions, minimizing waste, and supporting community and economic growth. |
866 | |||
| 7 |
Kiss Beauty Groupkissbeautygroup.com
A global beauty care leader creating accessible, trend-forward products sold in over 100 countries, with a culture of passion and growth |
818 | |||
| 8 |
The NPD Groupcircana.com
Provides data, expertise, and analytics to help businesses measure, predict, and improve performance across multiple industries and sales channels worldwide. |
629 | |||
| 9 |
Kleen Test Products Corporationkleentest.com
A trusted contract manufacturer and packager for Fortune 500 companies, ensuring high-quality, cost-effective production of consumer products for over 70 years |
457 | |||
| 10 |
Actylisactylis.com
Specializes in managing critical ingredients and raw materials through manufacturing, sourcing hubs, and global distribution with extensive industry experience. |
455 | |||
| 11 |
Systemaxsystemax.com
A leading multichannel marketer of brand name and private label products, offering a unique shopping experience with efficient distribution channels across the US, Canada, and France |
374 | |||
| 12 |
Pall - Energy+pall.com
Global leader in filtration, separation, and purification solutions for various industries, ensuring purity, efficiency, and safety while maximizing production output and protecting critical assets |
347 | |||
| 13 |
Safaviehsafavieh.com
Global wholesaler based in Port Washington, NY specializing in home decor and furnishings |
334 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 14 |
Palm Bay Internationalpalmbay.com
A leading US wine and spirits company with a comprehensive global fine wine portfolio, focused on brand building and exceptional experiences #drinkpalmbay |
319 | |||
| 15 |
Allen Edmondsallenedmonds.com
Manufacturing and retailing premium men's footwear and accessories through a handcrafted 212-step production process in Wisconsin for upscale global stores and online customers. |
246 | |||
| 16 |
The Hawthorne Gardening Companyhawthorne-gardening.com
A leading distributor of hydroponic products, providing a range of brands for growers of all sizes with research, development, distribution, and service solutions |
223 | |||
| 17 |
Advantage Communications Groupadvantagecg.com
Optimize network infrastructure through global partnerships, technology expertise, and software, managing procurement, provisioning, inventory, and expenses across communications solutions. |
174 | |||
| 18 |
Port Washington-Saukville School Districtpwssd.k12.wi.us
A K-12 school district in Port Washington and Saukville, educating 2,700 students to reach their greatest potential in Wisconsin |
167 | |||
| 19 |
Helen Keller National Center for Deaf-Blind Youths and Adultshknc.org
National program offering vocational, rehabilitation services exclusively to deaf-blind youths and adults through residential training, community services, field offices, and professional training seminars |
158 | |||
| 20 |
Tweezerman International, LLCtweezerman.com
A leading beauty tool expert bringing high quality, innovative products to the professional beauty industry for over 40 years |
149 | |||
| 21 |
CareConnectcareconnectmobile.com
AI-powered caregiver workflow optimization platform for Agencies, offering tools for compliance, caregiver-client matching, scheduling, HR compliance, eLearning, recruiting, and secure communication |
93 | |||
| 22 |
Shake-N-Go Fashion, Inc.snghair.com
Specializing in human and synthetic hair products, this company designs and manufactures hair extensions, wigs, and accessories, founded in 1991 |
65 | |||
| 23 |
Dejana Industries Incoutworxgroup.com
A machinery company located in Port Washington, NY, specializing in industrial equipment and machinery services |
20 | |||
| 24 |
Manhasset Bay Yacht Clubmanhassetbayyc.org
Exclusive waterfront club with a classic clubhouse offering social rooms, inn accommodations, sailing, pool, tennis, and dining for members and guests |
11 | |||
| 25 |
Jadair International, Inc.jadair.com
A machinery company located in Port Washington, WI, specializing in the manufacturing and distribution of industrial equipment and machinery |
7 | |||
| 26 |
Omnizant Interactiveomnizantinteractive.com
A digital agency specializing in providing exceptional websites and client service for healthcare providers through a client-centered approach to online marketing |
1 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.
The same list elsewhere in United States
- The largest companies in the United States 104,977
- The largest companies in California 15,259
- The largest companies in New York State 12,430
- The largest companies in Texas 9,282
- The largest companies in Florida 5,628
- The largest companies in Illinois 4,685
- The largest companies in Pennsylvania 3,427
- The largest companies in Massachusetts 3,419
- The largest companies in Georgia 2,965
- The largest companies in Ohio 2,909
- The largest companies in New Jersey 2,904
- The largest companies in Virginia 2,761
- The largest companies in Michigan 2,600
- The largest companies in North Carolina 2,409
- The largest companies in Alabama 2,156
- The largest companies in Washington State 2,143
- The largest companies in Colorado 2,042
- The largest companies in Minnesota 1,910
- The largest companies in Arizona 1,712
- The largest companies in Maryland 1,688
- The largest companies in New York 8,171
- The largest companies in San Francisco 2,410
- The largest companies in Houston 1,987
- The largest companies in Chicago 1,860