Find prospects like John Marsh
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.
Products & Services
About John Marsh
John F. Marsh has experience representing and advising clients in trade secrets, emergency litigation, licensing and intellectual property disputes. John Marsh is a company based in Columbus, Ohio, United States, operating in Office service, employing 11-20 people, reporting $1M-$5M in annual revenue and classified under Offices of Lawyers.
Its primary NAICS classification is 541110 (Offices of Lawyers). John Marsh is one of 403,432 Industrial & mechanical companies listed in Ohio.
Business Contact Information
- Phone
- +1 (614) 2335102
- Website
- tradesecretlitigator.com
- facebook.com/sharer.php
- Address
- 65 E State St, Columbus, Ohio, 43215, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5411Legal Services
- 541110Offices of Lawyers
SIC Codes
- 81Legal Services
- 811Legal Services
- 8111Offices of Lawyers
Company Details
- Employees
- 19 (11-20)
- Annual Revenue
- $3.8M ($1M-$5M)
John Marsh: frequently asked questions
What does John Marsh do?
John F. Marsh has experience representing and advising clients in trade secrets, emergency litigation, licensing and intellectual property disputes.
Where is John Marsh located?
John Marsh is headquartered at 65 E State St, Columbus, Ohio, 43215, United States.
How many employees does John Marsh have?
John Marsh has about 19 employees (the 11-20 range).
What is John Marsh's annual revenue?
John Marsh's annual revenue is estimated at $3.8M (the $1M-$5M range).
What industry is John Marsh in?
John Marsh is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541110 (Offices of Lawyers).
How can I contact John Marsh?
Its website is tradesecretlitigator.com and its phone number is +1 (614) 2335102.
Largest companies in Ohio
Largest industrial & mechanical companies
Manufacturing sales in Ohio, 2026
In Ohio, Factur's 2026 study counted 89 manufacturing quotes worth $1.2M and 31 purchase orders over 12 months: 35% of quotes became orders, against 21% nationally. See the Ohio 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.