General information for Mainstem LLC
Physical address
51 Monroe St Ste, Pe5, Rockville, Md, 20850
Mailing address
51 Monroe St Ste, Pe5, Rockville, MD, 20850
Points of contact for Mainstem LLC
SAM.gov Points of Contact
Annie
Bauler
Government Business POC
Electronic Business POC
7001 E Belleview Ave. Suite 1000, Denver, CO, 80237
Ellen
Saunders
Alternate Government Business POC
7001 E Belleview Ave. Suite 1000, Denver, CO, 80237
Additional contact details may be available
NAICS codes for Mainstem LLC
| Code | Description | Small Business |
|---|---|---|
|
541330
PRIMARY
|
Engineering Services
|
No
|
| 334111 | Electronic Computer Manufacturing | No |
| 334112 | Computer Storage Device Manufacturing | No |
| 334118 | Computer Terminal and Other Computer Peripheral Equipment Manufacturing | No |
|
423430
|
Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
|
No
|
|
513210
|
Software Publishers
|
No
|
|
518210
|
Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
|
No
|
|
541511
|
Custom Computer Programming Services
|
No
|
|
541512
|
Computer Systems Design Services
|
No
|
|
541513
|
Computer Facilities Management Services
|
No
|
|
541519
|
Other Computer Related Services
|
No
|
|
541690
|
Other Scientific and Technical Consulting Services
|
No
|
PSC codes for Mainstem LLC
Update history
2 change(s) tracked
Jun 26, 2026
NAICS 541512 is no longer the primary code
Jun 26, 2026
NAICS 541330 became the primary code
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