A critical spreadsheet has become too complicated to trust.
Custom business systems and technical support since 1984
Make your business systems work together.
SDSI designs, builds, connects, and supports custom software and websites, with nationwide remote technical support and onsite IT service in Murrieta and Temecula.
- Since 1984
- Systems still running after 20+ years
- Direct access to the people who build and support the work
YOUR BUSINESS, CONNECTED
Practical technology.Less friction. Better flow.
When the software almost fits—but the work still does not flow
An older application still matters but is difficult to maintain.
Teams repeatedly move the same information between disconnected tools.
A manual process consumes time every week and needs a better system.
Custom business software built around the real workflow
SDSI turns important business workflows into clearer, better-connected, supportable systems.
- Build a new internal or customer-facing application.
- Modernize an important legacy system.
- Connect software that does not communicate cleanly.
- Extend an existing system with the missing workflow.
“SDSI created Rapid Estimator, and we’ve been using it successfully for over 25 years. Their custom solution has transformed our estimating process and protected our profitability. The support is excellent — a true game-changer for our business.”
Before
A before-and-after workflow: scattered tools become one connected path.
Spreadsheet no one wants to touch
Email and text as the handoff
Same record entered twice
After
One workflow map
Connected systems
A person still in the loop
Selected work
Real operational problems and the systems SDSI built to solve them.
Current
Rapid Estimator
Construction professionals need to produce accurate, detailed, professional-looking estimates and client-ready proposals without relying on fragile spreadsheet workarounds.
Beta
Rapid Field
Jobsite photos, measurements, and notes need a path into the office estimating system without replacing the desktop as the system of record.
Customer perspective
Long-running systems. Long-running relationships.
“SDSI created our custom business management software more than 20 years ago. It continues to run our entire operation flawlessly to this day. The reliability and ongoing support we’ve received from SDSI is outstanding!”
“SDSI’s IT team has provided complete IT support for our business since the day we opened our doors 20 years ago. From network setup and hardware support to cybersecurity and ongoing maintenance, their reliability and proactive service have been invaluable.”
“SDSI developed a custom Flower Brokerage Program that automated our entire operation — ordering, inventory tracking, and sales. It has saved us significant time and streamlined our business. We couldn’t be happier with the results.”
Coverage
Built to work with businesses wherever they operate
SDSI provides custom software, websites, hosting, remote technical services, and AI-enabled workflow work to businesses throughout the United States. Onsite IT service is available in Murrieta and Temecula.
Remote nationwide
Onsite only
Murrieta and Temecula, California
In-person IT support is available to businesses in Murrieta and Temecula. Software development and remote technical services remain available nationwide.
Experienced technical help without layers of handoffs
Founded in 1984, SDSI is a small, experienced team. Customers talk directly with the people who understand and build the work.
Founder Jean Barnett leads the board, Patrick Thomas leads the business, and senior programmer Julie Sharpe brings more than 30 years with the company. Together, the team builds and supports commercial products as well as custom systems.
Next step
What is your business working around today?
Describe the spreadsheet, application, website, integration, or repetitive process that is getting in the way. SDSI will help identify a practical next step—whether that means improving what you already have, connecting systems, automating repeatable work, or building something new.
Tell us what is slowing the work down. You do not need to know the technical answer before you contact us.
Local: (951) 461-8490
Nationwide: (800) 872-7160