Find prospects like Diligent Design Group
Get a list of similar companies, matched by industry, size and location, ready for outreach.
Free sample of 25 companies by email within one business day. No spam: we only use your email for this request.
About Diligent Design Group
Diligent Design Group is a company reporting $1M-$5M in annual revenue, classified under Engineering Services, based in Chicago, Illinois, United States and employing 6-10 people.
Its primary NAICS classification is 541330 (Engineering Services). Diligent Design Group is one of 1,843,395 companies listed in Illinois.
Business Contact Information
- Phone
- +1 (312) 9822108
- Website
- ddgengineers.com
- Address
- 135 S La Salle St, Chicago, Illinois, 60674, United States
Industry & Classification
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5413Architectural, Engineering, and Related Services
- 541330Engineering Services
SIC Codes
- 87Engineering, Accounting, Research, Management, And Related Services
- 871Engineering, Architectural, And Surveying
- 8711Engineering Services
Company Details
- Employees
- 8 (6-10)
- Annual Revenue
- $1.2M ($1M-$5M)
Diligent Design Group: frequently asked questions
What does Diligent Design Group do?
Diligent Design Group is a company reporting $1M-$5M in annual revenue, classified under Engineering Services, based in Chicago, Illinois, United States and employing 6-10 people.
Where is Diligent Design Group located?
Diligent Design Group is headquartered at 135 S La Salle St, Chicago, Illinois, 60674, United States.
How many employees does Diligent Design Group have?
Diligent Design Group has about 8 employees (the 6-10 range).
What is Diligent Design Group's annual revenue?
Diligent Design Group's annual revenue is estimated at $1.2M (the $1M-$5M range).
What industry is Diligent Design Group in?
Diligent Design Group's primary NAICS code is 541330 (Engineering Services).
How can I contact Diligent Design Group?
Its website is ddgengineers.com and its phone number is +1 (312) 9822108.
Largest companies in Illinois
Largest companies on Factur
Manufacturing sales in Illinois, 2026
In Illinois, Factur's 2026 study counted 74 manufacturing quotes worth $11.8M and 14 purchase orders over 12 months: 19% of quotes became orders, against 21% nationally. See the Illinois data.
Own this business?
Keep your profile accurate — or ask us to take it down. We acknowledge requests within 7 days and resolve them within 30 days.
Prefer email? privacy@facturmfg.com
Add this badge to your website — show visitors you're listed on Factur Data.