Custom Software Development Company in Maryland
Updated
Engineering Teams for Maryland, Based in Tysons, Virginia
Sthenos Technologies is a custom software development company. In Maryland we design and build custom applications, AI and agentic systems, cloud platforms and data pipelines, and modernizing legacy systems that have outgrown the way they were first built. Our primary NAICS code is 541511, Custom Computer Programming Services, and that is an accurate description of what we sell.
Maryland gives that work a particular shape. The sectors concentrated here carry real regulatory load: health systems and clinical research groups, financial services firms, law firms holding privileged material, and state and county bodies with procurement rules of their own. Software for those buyers has to survive an audit as well as a launch. We serve Maryland from our headquarters at 1775 Tysons Blvd, 5th Floor, Suite 04187, McLean, VA 22102, United States, within reach of Montgomery County and the Baltimore and Washington corridor, so scoping sessions and delivery reviews can happen in a room rather than only on a call. The number is 301-793-3980, and the office is described on our Virginia page.
What Sthenos Builds for Maryland Clients
Custom Software Development
AI and Agentic Systems
Cloud Migration
Cloud Platforms
Legacy System Modernization
Data Engineering
Government IT Services
Staff Augmentation
Delivery at Scale With NeoSOFT
EDWOSB and WOSB Certified
Sectors We Build Software For
AI Systems Built on Your Own Data and Governance
Why Maryland Teams Work With Sthenos
Engineering, Not a Help Desk
Sthenos builds and modernizes software. We are not an IT support company, and we do not run desktop support or break/fix contracts. If a network needs fixing, we are the wrong firm and we will say so on the first call.
Served From Tysons, Virginia
We serve Maryland from our headquarters at 1775 Tysons Blvd, 5th Floor, Suite 04187, McLean, VA 22102, United States, on 301-793-3980. It sits inside the Washington DC metro area, so people can meet in person when a project needs it.
Scale Through NeoSOFT
Delivery is scaled through a partnership with NeoSOFT. The contract and the accountability stay with Sthenos.
Registered for Public Sector Work
The legal entity is STHENOS LLC, trading as Sthenos Technologies. Unique Entity ID ULUZGKWYCJB7, CAGE code 9RX92, primary NAICS 541511. The SAM.gov registration is active (verify on SBA Small Business Search).
A Small Business by Federal Definition
Sthenos is an SBA certified Economically Disadvantaged Women Owned Small Business and Women Owned Small Business. For a Maryland agency or a prime working to small business goals, that status is on the public record rather than on a slide.
Reviewed in the Open
Our Clutch profile carries 43 reviews, all rated 5.0. It is public, so you can form a view before you contact us.
Serving Maryland From Tysons
Sthenos Technologies builds custom software and AI systems for Maryland organizations from its office in Tysons, Virginia, and holds Maryland certificate 26-134 as a Minority Business Enterprise and a Small Business Enterprise. Below: what that certificate covers and what it does not, how an AI build runs from discovery to release, and where each fact can be checked without asking us.
MBE and SBE status, certified for NAICS 541611 and 541613.
Both active from 5 March 2026 to 5 March 2029.
Custom Computer Programming Services, and not among the codes on 26-134.
At $150 to $250 per hour, depending on the seniority and mix of the team.
On this page
- What certificate 26-134 covers, and what it does not
- How an AI build runs, step by step
- Where to check each fact
- Related pages
- Request a free consultation
What certificate 26-134 covers, and what it does not
Certificate 26-134 is issued by the State of Maryland and covers Minority Business Enterprise and Small Business Enterprise status. It is certified for NAICS 541611 and 541613, which are consulting codes. Our federal primary code, 541511, is not among them, so a Maryland participation schedule keyed to 541511 will not match us on the certificate as it stands today.
Figure 1. Two certification records, and the codes each one carries
Every label restates the credential record on our about page, which was read on 10 September 2026. The only count in the figure is the 31 codes SBA's record lists; nothing else in it is measured.
How a state agency or a county applies a participation goal, and every federal buying route, is set out on our government IT services page rather than repeated here.
How custom AI software development runs, from discovery to release
The AI and agentic systems card above names the guardrails, evaluation and audit trail a regulated buyer needs before anything reaches a customer. As a custom AI software development company we build that work in this order, restated from our AI services page, where each step also names its output.
- DiscoveryThe workflow, not the model: how the work moves today, where it costs time, and what a good answer looks like to the people doing it. It ends in a recommendation, which can be the recommendation not to build.Use case shortlist
- Data and feasibilityWhat data exists, who owns it, whether it is fit to act on, and what leaves your boundary.Data readiness note
- Evaluation firstThe evaluation set and the baseline are built before the feature. If we cannot agree what correct means, that is the finding, and it is cheaper now than after the build.Evaluation set
- Build in two week incrementsRetrieval, model integration, guardrails and the surrounding application, reviewed at the end of every sprint against the evaluation set rather than against a demo.Every two weeks
- Production releaseMonitoring, alerting, spend ceilings, rollback, and a defined human path for the cases the system should not decide alone.Typically three to six months
Our AI services page adds an integration and security review before the release and a last step, operating and improving the system once it is live. For a buyer under HIPAA, financial services rules, legal privilege or a state procurement standard, those constraints shape the data model, the access controls and the logging before code is written, as the answer on security and compliance further down this page says.
Where to check each fact without asking us
- Certificate 26-134: in the state's directory of certified firms, searching the business name with MBE and SBE selected.
- WOSB, EDWOSB, UEI and CAGE: on our SBA Small Business Search profile, SBA's own record rather than ours.
- Delivery record: the 43 reviews on our Clutch profile, dated between 17 October and 17 December 2025.
Related pages, by what you came to check
- Bethesda, the questions teams there ask
- Virginia, where the head office is
- All locations
- Government IT services, what a contracting office asks first
- Public sector, federal, state and local
- About us, every registration with where to verify it
- AI and machine learning, each step with its output
- Agentic AI, for systems that take action across your tools
- Production readiness checklist, published in full
Tell us what the software has to do and we will tell you what it takes. Request a free consultation, or call the office on 301-793-3980.
Questions Maryland Clients Ask
Custom software. Applications, internal platforms, portals and integrations built for one client rather than sold as a package, plus AI and agentic systems, cloud migration and cloud platform work, legacy system modernization, and data engineering. We also place engineers into client teams as staff augmentation.
What we do not sell is IT support. No help desk contracts, no desktop break/fix, no network monitoring retainers. If that is what you are shopping for, we are the wrong firm and we will say so on the first call rather than take the meeting.
We are set up for it. STHENOS LLC holds Unique Entity ID ULUZGKWYCJB7 and CAGE code 9RX92, our primary NAICS code is 541511 for Custom Computer Programming Services, and our SAM.gov registration is active (verify on SBA Small Business Search). We are certified by the SBA as an Economically Disadvantaged Women Owned Small Business and a Women Owned Small Business.
Those are the registration facts a contracting officer or a prime asks for first, and every one of them can be checked on SBA Small Business Search without going through us. Sthenos is a small business building out its public sector practice, and we would rather you read the register than take our word for anything.
Yes. Our team comes to you from our Tysons, Virginia office, so discovery workshops, design reviews and go-live support can happen at your site or ours.
Build work runs remotely, because that is how software gets written, but the parts that need people in a room happen in a room. We serve organizations across Maryland.
As build requirements, not as a review at the end. Where a Maryland client works under HIPAA, financial services rules, legal privilege or a state procurement standard, those constraints shape the data model, the access controls, the logging and the deployment before code is written, and the audit trail is part of what we deliver rather than something reconstructed later.
We will tell you plainly which controls sit inside the software we build and which remain yours to operate, and we will not claim a certification we do not hold.