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Products & Services
About Diamond Group
Diamond Group is listed as a company reporting $1M-$5M in annual revenue, classified under Offices of Other Holding Companies, based in Westfield, New Jersey, United States, operating in Investement Management and employing 11-20 people.
Its primary NAICS classification is 551112 (Offices of Other Holding Companies). Diamond Group is one of 43,983 Financial companies listed in New Jersey.
Business Contact Information
- Phone
- +1 (908) 7560300
- Website
- diamondgroup.com
- Address
- 7 Elm St, Westfield, New Jersey, 7090, United States
Industry & Classification
- Industry
- Financial
- Sector
- Finance
- Segment
- Investement Management
NAICS Codes
- 55Management of Companies and Enterprises
- 5511Management of Companies and Enterprises
- 551112Offices of Other Holding Companies
SIC Codes
- 67Holding And Other Investment Offices
- 671Holding Offices
- 6719Offices of Other Holding Cos.
Company Details
- Employees
- 14 (11-20)
- Annual Revenue
- $4.7M ($1M-$5M)
Diamond Group: frequently asked questions
What does Diamond Group do?
Diamond Group is listed as a company reporting $1M-$5M in annual revenue, classified under Offices of Other Holding Companies, based in Westfield, New Jersey, United States, operating in Investement Management and employing 11-20 people.
Where is Diamond Group located?
Diamond Group is headquartered at 7 Elm St, Westfield, New Jersey, 7090, United States.
How many employees does Diamond Group have?
Diamond Group has about 14 employees (the 11-20 range).
What is Diamond Group's annual revenue?
Diamond Group's annual revenue is estimated at $4.7M (the $1M-$5M range).
What industry is Diamond Group in?
Diamond Group is in the Financial / Finance industry, and its primary NAICS code is 551112 (Offices of Other Holding Companies).
How can I contact Diamond Group?
Its website is diamondgroup.com and its phone number is +1 (908) 7560300.
What companies are similar to Diamond Group?
Other large financial companies in New Jersey include Prudential Financial Inc, Mizuho Financial Group, Everest Group and Prudential PLC.
Largest financial companies in New Jersey
Largest financial companies
Manufacturing sales in New Jersey, 2026
In New Jersey, Factur's 2026 study counted 25 manufacturing quotes worth $3.1M and 4 purchase orders over 12 months: 16% of quotes became orders, against 21% nationally. See the New Jersey data.
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