General information for Greystones Consulting Group, LLC
Physical address
300 M St Se Ste 325, Washington, Dc, 20003
Mailing address
300 M Street Southeast 325, Washington, DC, 20003
Website
greystonesgroup.com
Points of contact for Greystones Consulting Group, LLC
SAM.gov Points of Contact
Sheila
Duffy
Government Business POC
Alternate Electronic Business POC
Owner/CEO
300 M Street SE, Suite 325, Washington, DC, 20003
John
Hopkin
Alternate Government Business POC
COO
300 M Street SE, Suite 325, Washington, DC, 20003
Julie
Lofreddo
Electronic Business POC
HR Director
300 M Street SE, Suite 325, Washington, DC, 20003
Additional contact details may be available
NAICS codes for Greystones Consulting Group, LLC
| Code | Description | Small Business |
|---|---|---|
| 541330 PRIMARY | Engineering Services | No |
| 541511 | Custom Computer Programming Services | Yes |
| 541512 | Computer Systems Design Services | Yes |
|
541513
|
Computer Facilities Management Services
|
Yes
|
|
541519
|
Other Computer Related Services
|
No
|
|
541611
|
Administrative Management and General Management Consulting Services
|
Yes
|
|
541613
|
Marketing Consulting Services
|
Yes
|
|
541614
|
Process, Physical Distribution, and Logistics Consulting Services
|
Yes
|
|
541618
|
Other Management Consulting Services
|
Yes
|
|
541690
|
Other Scientific and Technical Consulting Services
|
Yes
|
|
541715
|
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
|
No
|
|
541990
|
All Other Professional, Scientific, and Technical Services
|
Yes
|
|
561210
|
Facilities Support Services
|
Yes
|
|
561320
|
Temporary Help Services
|
Yes
|
|
561499
|
All Other Business Support Services
|
Yes
|
|
561990
|
All Other Support Services
|
Yes
|
|
611420
|
Computer Training
|
Yes
|
|
611430
|
Professional and Management Development Training
|
Yes
|
|
611519
|
Other Technical and Trade Schools
|
No
|
SBA business types for Greystones Consulting Group, LLC
| Type | Entry Date | Exit Date |
|---|---|---|
| SBA-Certified Women-Owned Small Business | Aug 13, 2021 | Active |
Update history
18 change(s) tracked
Apr 7, 2026
NAICS 611519: exception NN → YY
Apr 7, 2026
NAICS 611430: small-business status No → Yes
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