General information for Mainstreet Matrix LLC
Physical address
8917 S Clyde Ave, Chicago, Il, 60617
Mailing address
1722 East 76th Street, Chicago, IL, 60649
Website
mainstreetmatrix.net
Points of contact for Mainstreet Matrix LLC
SAM.gov Points of Contact
John
Barfield
Government Business POC
Alternate Government Business POC
Electronic Business POC
Member
1722 East 76th Street, Chicago, IL, 60649
Additional contact details may be available
NAICS codes for Mainstreet Matrix LLC
| Code | Description | Small Business |
|---|---|---|
| 541511 PRIMARY | Custom Computer Programming Services | Yes |
| 518210 | Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | Yes |
| 519290 | Web Search Portals and All Other Information Services | Yes |
|
541512
|
Computer Systems Design Services
|
Yes
|
|
541611
|
Administrative Management and General Management Consulting Services
|
Yes
|
|
541613
|
Marketing Consulting Services
|
Yes
|
|
541820
|
Public Relations Agencies
|
Yes
|
|
541890
|
Other Services Related to Advertising
|
Yes
|
PSC codes for Mainstreet Matrix LLC
Update history
2 change(s) tracked
Jun 30, 2026
NAICS 541611 is no longer the primary code
Jun 30, 2026
NAICS 541511 became the primary code
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