Xsite LLC
San Diego, CA Doing business as Xpert Systems Integration And Technology Engineering
- UEI
- JHREEC3ENDT8
- CAGE
- 783G9
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- NAICS codes registered in SAM.gov
-
- 541330 Engineering Services Primary
- 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 541511 Custom Computer Programming Services
- 541512 Computer Systems Design Services
- 541519 Other Computer Related Services
- 541611 Administrative Management and General Management Consulting Services
- 541618 Other Management Consulting Services
- 541690 Other Scientific and Technical Consulting Services
- SAM.gov registration date
- Physical address
- 4250 Pacific Hwy #205, San Diego, CA 92110, USA
- Website
- xsitellc.com
- Founded
- 2014
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management Services
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Scalable homeland innovative enterprise layered defense (shield) initial order. | Missile Defense Agency | $500 | |
| This is an award of a contract under small business innovative research program topic 25.1-004. | Marine Corps | $139,965 | |
| 50E cheng support services | Naval Information Warfare Systems Command | $2,749,632 | |
| Operations and sustainment support of milsatcom modeling and simulation tool to include: MPM/splunk data adaptation, EMI… | Space and Missile Systems Center | $10,604,745 | |
| This contract is to develop a way of expanding the currently available muos testing/simulation capabilities to more than… | Air Force | $179,991 |
About Xsite LLC
Xsite LLC, doing business as Xpert Systems Integration And Technology Engineering, is a service-disabled veteran-owned small business headquartered in San Diego, California. The company is registered in SAM.gov and operates as a for-profit corporate entity with a focus on providing advanced technical services to federal government agencies, particularly within the defense and aerospace sectors. Established in 2014, Xsite LLC has developed a reputation for delivering sophisticated systems engineering, technology integration, and specialized support services to multiple military branches and federal agencies.
The company has secured multiple significant federal contract awards across various military domains, including contracts with the Marine Corps, Naval Information Warfare Systems Command, Air Force Space and Missile Systems Center, and Air Force Research Laboratory. These contracts have encompassed a diverse range of technical services, including Small Business Innovation Research (SBIR) Phase I projects focused on military satellite communications (MILSATCOM) modeling and simulation tools, operational planning analysis, electromagnetic interference and threat impact assessments, and satellite access request evaluations. Xsite LLC has worked both as a prime contractor and subcontractor, with notable partnerships involving Booz Allen Hamilton, Caci Technologies, and American Systems Corporation. The company has received contracts with both small business set-aside designations and open competitive awards, with contract values ranging from approximately $180,000 to over $23 million, demonstrating its capability to support complex technical projects across different scales and complexity levels within the federal government's technology and engineering ecosystem.
Contract vehicles
SBA capabilities narrative
XSITE LLC was founded in December, 2014 as a Service Disabled, Veteran Owned Small Business providing technical services to the Department of Defense (DoD) and the Intelligence Community (IC). XSITE specializes in enterprise systems integration, system engineering, and modeling and simulation for complex hardware and software acquisitions. We are also engaged in scouting and evaluation of emerging technologies for various defense and commercial applications. We are a company of approximately 30 engineers, architects, and military veterans who have specified, modeled, built, integrated, deployed, and operated the nation's most complex enterprise systems. Headquartered in San Diego, California, XSITE also has an East Coast Office located in Royersford, PA and employee presence in Colorado, Virginia and Florida.
Quick answers
What is Xsite LLC's UEI?
Xsite LLC's Unique Entity ID (UEI) in SAM.gov is JHREEC3ENDT8.
What is Xsite LLC's CAGE code?
Xsite LLC's CAGE code is 783G9.
What is Xsite LLC's primary NAICS code?
Xsite LLC's primary NAICS code is 541330 (Engineering Services).
Where is Xsite LLC located?
Xsite LLC's physical address in SAM.gov is 4250 Pacific Hwy #205, San Diego, CA 92110, USA.
Is Xsite LLC registered in SAM.gov?
Yes. Xsite LLC's SAM.gov registration is active through July 9, 2027.
Which contract vehicles does Xsite LLC hold?
Xsite LLC holds a place on 2 federal contract vehicles, including Seaport-NXG.
What is Xsite LLC's most recent federal award?
Xsite LLC's most recent federal contract award is Scalable homeland innovative enterprise layered defense (shield) initial order (HQ085926FF887), from Missile Defense Agency, on January 21, 2026.
On GovTribe
See Xsite LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors