Custom software built around your business
When standard software no longer fits your processes, we develop custom software solutions that connect systems, unify processes, and support the way your organization operates.
Disconnected software
Disconnected software
Manual processes
Manual processes
Growing organisation
Growing organisation
Changing regulations & legacy systems
Changing regulations & legacy systems
macmini — -zsh — 120x30
~ — -zsh
~ — -zsh
Last login: Wed Mar 18 18:23:40 on ttys00
macmini:~ $ ls -la
total 48
drwxr-xr-x 12 user staff 384 Mar 18 10:23 .
drwxr-xr-x 6 user staff 192 Mar 15 09:41 ..
-rw-r--r-- 1 user staff 1247 Mar 17 14:05 README.md
drwxr-xr-x 8 user staff 256 Mar 18 10:23 src
-rwxr-xr-x 1 user staff 843 Mar 16 11:30 deploy.sh
-rw-r--r-- 1 user staff 2048 Mar 18 09:15 package.json
macmini:~ $
Knowledge search
Q3 revenue by region…
No results found
Data lives in 3 disconnected systems
3 sources not connected
System health
Outdated
This version is no longer supported
Some features may not work correctly until you update to the latest release.
Support ends in 12 days
Update log
Connected systems
3 of 6
CRM
Not connected
ERP
Not connected
Connected
Accounting
Not connected
Warehouse
Not connected
BI tool
Connected
Compliance checklist
2 of 4
Data retention policy
Access control audit
Reporting format update
Consent workflow
Review changes
THE SERVICE CATALOGUE
Custom software development services we provide
The types of software solutions we design, develop, and support for businesses, organizations, and public sector institutions.
01
View more
Web applications
Custom online stores built for performance.
02
View more
B2B portals
Migrate to modern platforms without losing data or SEO.
03
View more
Mobile app development
Sell on multiple marketplaces and manage from one place.
04
View more
Self-service portals
Connect your business systems.
05
View more
Internal systems
Add the exact features your business needs.
06
View more
SaaS development
Connect with warehouses and shipping providers for smooth delivery.
07
View more
API development
Improve site speed, structure and indexability to boost your visibility.
08
View more
System integrations
Conversion rate optimization — increase revenue from existing traffic.
Not sure what solution is right for you?
Request expert advice
The partner behind the platform
Custom software isn't something you replace every two years. You're choosing a partner who understands your organisation, communicates transparently and is still there when new requirements appear three years later. That's how we work.
We're comfortable joining halfway through
Take over an existing system
Fix years of technical debt
Stabilise production
Continue development
Support an internal IT team
Work under NDA
Respond quickly when something breaks
Clear priorities
What to solve now - and what can wait.
AI READINESS SCORE
78
/ 100
Recommended
Bottleneck is well-defined, systems are integrated, and human oversight is in place.
Approve case
Request changes
CRM & ERP data
Integration layer
Unified data model
Added a feature request
Run automatically
Require human approval
View audit log
Duplicate flow
Delete flow
Solution direction
The most suitable way forward.
BA
SA
AI
QA
+
Technologies used in Custom software development projects
Integrations with existing business systems
You don't need to replace the systems your organization already relies on. We help connect existing platforms, services, and business tools into a unified digital environment that supports more efficient operations and information flow.
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How we work
We understand the unique challenges and aspirations of your business. Our expert team crafts a tailored strategy to ensure your success while adapting to the evolving market landscape.
Our experienced sales together with business analyst start by understanding your business, challenges, and goals. Together, we define a clear roadmap with measurable outcomes and a realistic execution plan - before any code is written.
Discovery
We learn about your business, goals and challenges.
Estimation
We define technical approach and plan the right strategy.
Proposal
We bring everything together into a clear, actionable plan for moving forward.
We turn strategy into working solutions.
Our certified experts execute with precision, deploying solutions that integrate seamlessly into your existing architecture. We prioritize operational continuity, knowledge transfer, and adherence to industry standards.
Design
We gather detailed business requirements, interviewing stakeholders and design solution.
Development
We build secure, scalable, high-performance solutions.
Launch
We go live and ensure a smooth start.
We ensure continuous performance and improvement.
From proactive monitoring to ongoing improvements, we ensure your IT environment stays reliable, secure, and ready to scale.
your next solution with us
Maintenance
We keep your solution stable, secure and running as expected.
Service management
We make sure your day-to-day IT needs are handled efficiently and consistently.
Continuous development
We help your solution evolve as your business, users and priorities change.
const ticket = support.openTicket();
const responseTime = await calculateSlaDeadline(ticket, plan);
const engineer = await assignSupportEngineer(ticket, priority);
const warranty = support.checkWarrantyCoverage(engineer);
const resolutionSummary = createResolutionSummary(ticket, engineer);
const supportRecord: ReturnType〈typeof buildSupportWarrantyRecord〉
// warrantyPeriod defines how long a delivered
feature stays covered after launch
// Once a ticket comes in, support checks
it against the original delivery scope
// to confirm whether it's a covered defect or
a new billable request. This is
// important, since otherwise it's impossible
to tell which fixes are free
// or need a new estimate.
Support
& warranty
Launch isn't the finish line. We stay close with dedicated support, clear warranty terms, and fast response when it matters.
24/7 support availability
Dedicated support when your business needs it most.
Support & maintenance
We're here when needed.
Dedicated Help Desk
Structured request management
Issue resolution
System monitoring
Warranty & service commitments
Confidence after go-live.
Warranty included
Bug fixes
Service level options (SLA)
Long-term maintenance
Trusted by
Chosen by organizations you already trust
Viktors Kučeruks
CEO of Horizont Group
We evaluate SIA “Horizont Group”’s cooperation with ZenIS very positively. From the very beginning of the project, the ZenIS team demonstrated a professional and structured approach - our company’s internal processes, document flow, employees’ daily needs, and the administration’s workflow were carefully analysed.
Work models
Time & Materials
A flexible model that lets your project evolve with current priorities and respond to feedback from real users.
Hourly billing
For long-term projects
Fixed Price
We define the requirements, agree the solution and confirm the final project cost before development begins.
Clear requirements
For a specific project or task
FAQ’s
What types of clients do you work with?
We work with businesses, public sector institutions, associations and NGOs that need digital products, integrations and long-term engineering support.
Do you work under NDA?
Yes. We regularly work under NDA and only publish project details with client approval.
Can ZenIS take over another IT vendor's solution or project?
Yes. We begin with an assessment of the existing system and agree a documented takeover plan before continuing development.
How is custom IT solutions better than using a SaaS product?
Custom development is appropriate when standard products cannot support the process, integration or ownership model your organization needs.
Do you work under NDA?
Yes. We regularly work under NDA and only publish project details with client approval.
Can you work alongside our internal IT team?
Yes. We agree responsibilities with your internal product, operations and IT teams.
Can ZenIS take over another IT vendor's solution or project?
Yes. We assess the existing system and agree a safe, documented takeover plan.
How is custom IT solutions better than using a SaaS product?
Custom development is appropriate when standard products cannot support the process, integration or ownership model you need.
What types of clients do you work with?
We work with businesses, public institutions, associations and NGOs.
What happens after launch?
We agree the warranty and support scope and continue maintaining and improving the solution.
Let's talk
Your project could be next
Tell us what you're building — chances are we've solved something close to it, publicly or under NDA.
Custom software built around your business
When standard software no longer fits your processes, we develop custom software solutions that connect systems, unify processes, and support the way your organization operates.
Where growing companies hit software friction
Disconnected software
Disconnected software
Manual processes
Manual processes
Growing organisation
Growing organisation
Changing regulations & legacy systems
Changing regulations & legacy systems
macmini — -zsh — 120x30
~ — -zsh
~ — -zsh
Last login: Wed Mar 18 18:23:40 on ttys00
macmini:~ $ ls -la
total 48
drwxr-xr-x 12 user staff 384 Mar 18 10:23 .
drwxr-xr-x 6 user staff 192 Mar 15 09:41 ..
-rw-r--r-- 1 user staff 1247 Mar 17 14:05 README.md
drwxr-xr-x 8 user staff 256 Mar 18 10:23 src
-rwxr-xr-x 1 user staff 843 Mar 16 11:30 deploy.sh
-rw-r--r-- 1 user staff 2048 Mar 18 09:15 package.json
macmini:~ $
Knowledge search
Q3 revenue by region…
No results found
Data lives in 3 disconnected systems
3 sources not connected
System health
Outdated
This version is no longer supported
Some features may not work correctly until you update to the latest release.
Support ends in 12 days
Update log
Connected systems
3 of 6
CRM
Not connected
ERP
Not connected
Connected
Accounting
Not connected
Warehouse
Not connected
BI tool
Connected
Compliance checklist
2 of 4
Data retention policy
Access control audit
Reporting format update
Consent workflow
Review changes
THE SERVICE CATALOGUE
Custom software development services we provide
01 Web applications
Custom online stores built for performance.
View more
02 B2B portals
Migrate to modern platforms without losing data or SEO.
View more
03 Mobile app development
Sell on multiple marketplaces and manage from one place.
View more
04 Self-service portals
Connect your business systems.
View more
05 Internal systems
Add the exact features your business needs.
View more
06 SaaS development
Connect with warehouses and shipping providers for smooth delivery.
View more
07 API development
Improve site speed, structure and indexability to boost your visibility.
View more
08 System integrations
Conversion rate optimization — increase revenue from existing traffic.
View more
The partner behind
the platform
Custom software isn't something you replace every two years. You're choosing a partner who understands your organisation, communicates transparently and is still there when new requirements appear three years later. That's how we work.
We're comfortable joining halfway through
Take over an existing system
Fix years of technical debt
Stabilise production
Continue development
Support an internal IT team
Work under NDA
Respond quickly when something breaks
Clear priorities
What to solve now - and what can wait.
AI READINESS SCORE
78
/ 100
Recommended
Bottleneck is well-defined, systems are integrated, and human oversight is in place.
Approve case
Request changes
CRM & ERP data
Integration layer
Unified data model
Added a feature request
Run automatically
Require human approval
View audit log
Duplicate flow
Delete flow
Solution direction
The most suitable way forward.
BA
SA
AI
QA
+
Technologies used in Custom software development projects
We use the right technology and connect everything that matters to your business — real platforms and real integrations, working as one system.
-
-
-
-
-
-
-
-
-
-
-
-
How we work
We understand the unique challenges and aspirations of your business. Our expert team crafts a tailored strategy to ensure your success while adapting to the evolving market landscape.
01 Consultation
Our experienced sales together with business analyst start by understanding your business, challenges, and goals. Together, we define a clear roadmap with measurable outcomes and a realistic execution plan - before any code is written.
Discovery
We learn about your business, goals and challenges.
Estimation
We define technical approach and plan the right strategy.
Proposal
We bring everything together into a clear, actionable plan for moving forward.
Product
Problem statement and hypotheses
Define the project’s core challenge and develop hypotheses to guide the exploration and solution-finding process. This critical step frames the problem in a way that directs the design strategy, ensuring efforts are focused and measurable against initial assumptions.
WIP document
Intro
Project brief
To capture essential project details effectively, create a brief that includes an overview, objectives, target audience, scope of work, timeline, budget, stakeholders, requirements, success metrics, research insights, communication plans, and feedback processes. Use this quick-start approach to creating project briefs if you need a starting point
Project brief (WIP)
Teams convo
02 Implementation
We turn strategy into working solutions. Our certified experts execute with precision, deploying solutions that integrate seamlessly into your existing architecture. We prioritize operational continuity, knowledge transfer, and adherence to industry standards.
Design
We gather detailed business requirements, interviewing stakeholders and design solution.
Development
We build secure, scalable, high-performance solutions.
Launch
We go live and ensure a smooth start.
03 Support
We ensure continuous performance and improvement. From proactive monitoring to ongoing improvements, we ensure your IT environment stays reliable, secure, and ready to scale.
Maintenance
We keep your solution stable, secure and running as expected.
Service management
We make sure your day-to-day IT needs are handled efficiently and consistently.
Continuous development
We help your solution evolve as your business, users and priorities change.
Support & warranty
Launch isn't the finish line. We stay close with dedicated support, clear warranty terms, and fast response when it matters.
24/7 support availability
Dedicated support when your business needs it most.
Support & maintenance
We're here when needed.
Dedicated Help Desk
Structured request management
Issue resolution
System monitoring
Warranty & service commitments
Confidence after go-live.
Warranty included
Bug fixes
Service level options (SLA)
Long-term maintenance
Trusted by
Chosen by organizations you already trust
Viktors Kučeruks
CEO of Horizont Group
We evaluate SIA “Horizont Group”’s cooperation with ZenIS very positively. From the very beginning of the project, the ZenIS team demonstrated a professional and structured approach - our company’s internal processes, document flow, employees’ daily needs, and the administration’s workflow were carefully analysed.
Work models
Time & Materials
A flexible model that lets your project evolve with current priorities and respond to feedback from real users.
Hourly billing
For long-term projects
Fixed Price
We define the requirements, agree the solution and confirm the final project cost before development begins.
Clear requirements
For a specific project or task
FAQ’s
What types of clients do you work with?
We work with businesses, public sector institutions, associations and NGOs that need digital products, integrations and long-term engineering support.
Do you work under NDA?
Yes. We regularly work under NDA and only publish project details with client approval.
Can ZenIS take over another IT vendor's solution or project?
Yes. We begin with an assessment of the existing system and agree a documented takeover plan before continuing development.
How is custom IT solutions better than using a SaaS product?
Custom development is appropriate when standard products cannot support the process, integration or ownership model your organization needs.
Do you work under NDA?
Yes. We regularly work under NDA and only publish project details with client approval.
Can you work alongside our internal IT team?
Yes. We agree responsibilities with your internal product, operations and IT teams.
Can ZenIS take over another IT vendor's solution or project?
Yes. We assess the existing system and agree a safe, documented takeover plan.
How is custom IT solutions better than using a SaaS product?
Custom development is appropriate when standard products cannot support the process, integration or ownership model you need.
What types of clients do you work with?
We work with businesses, public institutions, associations and NGOs.
What happens after launch?
We agree the warranty and support scope and continue maintaining and improving the solution.
Let's talk
Your project could be next
Tell us what you're building — chances are we've solved something close to it, publicly or under NDA.
Discuss your requirements