How many email patterns does STG Inc. use?

STG Inc. uses 35 known email patterns.

What domain does STG Inc. use for work emails?

STG Inc. uses sosi.com, stg.com for work email addresses.

Most Common Email Formats at STG Inc.

STG Inc.'s most common email format is First.Last@sosi.com (ex. John.Doe@sosi.com), used for 95% of sosi.com addresses. STG Inc. uses 8 email patterns across 2 domains: sosi.com and stg.com. Percentages are the share of addresses within each domain.

@sosi.com

4 patterns

Format	Example	Share of sosi.com
First.Last@sosi.comMost common	John.Doe@sosi.com	95%
FLast@sosi.com	JDoe@sosi.com	3%
First.L@sosi.com	John.D@sosi.com	1%
LastF@sosi.com	DoeJ@sosi.com	1%

@stg.com

4 patterns

Format	Example	Share of stg.com
First.Last@stg.comMost common	John.Doe@stg.com	86%
FirstLast@stg.com	JohnDoe@stg.com	10%
FLast@stg.com	JDoe@stg.com	2%
First-Last@stg.com	John-Doe@stg.com	2%

Frequently Asked Questions

What does STG Inc. do?

STG Inc. operates in the IT Services and IT Consulting industry, alongside similar companies like Parsons Corporation and VSE Corporation. You can visit sosi.com or contact STG Inc.'s headquarters by phone at

+1-703-691-****

. Explore STG Inc.'s company overview page for more information.

What is STG Inc.'s email address format?

STG Inc.'s email format typically follows the pattern of First.Last@sosi.com; this email format is used 95% of the time. Other contacts within LeadIQ's database had email formats such as FLast@sosi.com and First.L@sosi.com. Looking for more contact data? Unlock accurate emails and phone numbers from millions of profiles verified in real-time.

How many employees does STG Inc. have currently?

STG Inc. has approximately 743 employees as of October 2026. Key team members to contact include Chief Executive Officer: B. D., Vice President Application Development Chief Technology Officer: B. K. and Vice President Infrastructure: A. P. For more team information and contact data, explore STG Inc.'s employee directory with LeadIQ.

STG Inc. Email Format

Q: What is STG Inc.'s email address format?

STG Inc.'s email format typically follows the pattern of ${fn}.${ln}. Other email formats include ${fi}${ln} and ${fn}.${li}.

IT Services and IT ConsultingVirginia, United States501-1000 Employees

STG Inc. operates from Reston, Virginia, in the IT services and consulting sector. Since 2018, it has been part of SOS International LLC (SOSi) following an acquisition. SOSi is a family-owned, mid-market government services contractor that concentrates on defense and intelligence work, providing intelligence analysis, technology-enabled capabilities, and project-management support to large government and commercial clients, including operations in austere environments. 

Founded in 1989, SOSi has built a global footprint with experience across roughly 30 countries. The company expanded its capabilities in May 2026 through an integration with Janes, combining SOSi's open-source data and real-time signals with Janes' analyst-validated military intelligence to help customers assess strategic influence, operational risk, and emerging threats within a single platform. STG remains part of this SOSi enterprise with its Reston base and a workforce described as several hundred personnel.

Most Common Email Formats at STG Inc.

@sosi.com

@stg.com

Need a specific person's email?

Frequently Asked Questions

What does STG Inc. do?

What is STG Inc.'s email address format?

How many employees does STG Inc. have currently?

STG Inc. Email Format

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Most Common Email Formats at STG Inc.

@sosi.com

@stg.com

Need a specific person's email?

Frequently Asked Questions

What does STG Inc. do?

What is STG Inc.'s email address format?

How many employees does STG Inc. have currently?

STG Inc. Email Format

Ready to create more pipeline?

Everything for prospecting,in one platform.

What you can expect from LeadIQ:

Ready to create more pipeline?

Everything for prospecting,
in one platform.