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OIESU®

OIESU is a marketing and software development company founded in 2021, backed by delivery experience dating back to 2012. Across founder, team, freelancer, partner, and white-label work, our combined history spans 500+ businesses and $1B+ in ad spend.

💬 +91 9874625135✉️ [email protected]

OIESU (OPC) Private Limited
Nababpally, Kolkata – 743127
West Bengal, India

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Home›Services›Custom Software Development Management
Custom Software Development experts · 3,600+ campaigns managed

Transform Your Business with Tailored Software Solutions.

Unlock efficiency and drive growth with bespoke software development. Our expertise helps businesses like yours streamline operations, enhance customer experiences, and boost revenue. We deliver results-driven solutions that meet your unique needs.

Google Partner Agency🇮🇳 Proudly Indian · AI-first · Global delivery Performance marketing since 2012 3,600+ Campaigns Managed Full-funnel tracking Free Campaign Audit
2012
experience since
3,600+
campaigns managed
$1B+
ad spend managed
10 days
to first results

Ready to grow? Let's talk.

1
YOU
2
DETAILS
3
INDUSTRY
4
SERVICES
5
BUDGET
5 steps away from growing your business — start with your contact details.
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Our process

Our Custom Software Development Process Delivers Results in 10 days.

Our structured approach ensures timely delivery of high-quality software solutions.

01
Day 0

Discovery

We collaborate with you to understand your business needs and objectives, identifying opportunities for software development to drive growth.

02
Days 1–3

Planning

Our team creates a tailored project plan, outlining the scope, timeline, and resources required to deliver your custom software solution.

03
Days 4–10

Development

Our expert developers bring your project to life, leveraging the latest technologies and best practices to build a scalable and efficient software solution.

04
Ongoing

Support

We provide ongoing maintenance and support to ensure your software continues to meet your evolving business needs, with regular updates and enhancements.

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Free · No commitment · Reply within 24 hours

No-Obligation Offer

Free Custom Software Development Account Audit

Get a comprehensive review of your current software development processes and identify opportunities for improvement with our free account audit. Our experts will provide actionable recommendations to enhance your software development capabilities.

Claim Free Audit
What we manage

Comprehensive Custom Software Development Services From Concept to Deployment.

Our team manages all aspects of custom software development, from initial discovery to ongoing support and maintenance.

Software Design

We craft intuitive and user-friendly software designs that meet your business needs and enhance customer experiences.

Development

Our expert developers build scalable and efficient software solutions using the latest technologies and best practices.

Testing & QA

We conduct rigorous testing and quality assurance to ensure your software meets the highest standards of quality and reliability.

Deployment

Our team handles the deployment of your software solution, ensuring a smooth transition to production.

Maintenance & Support

We provide ongoing maintenance and support to ensure your software continues to meet your evolving business needs.

Integration

We integrate your custom software solution with existing systems and infrastructure, ensuring seamless data exchange and workflows.

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Who this is for

Industries We Serve with Custom Software Healthcare, Law, and More.

Our custom software development services cater to a range of industries, including healthcare, law, real estate, and local services.

Healthcare Providers

We develop software solutions that streamline clinical workflows, enhance patient engagement, and improve healthcare outcomes.

Law Firms

Our custom software solutions help law firms manage cases, documents, and client relationships more efficiently.

Real Estate

We build software solutions that support real estate businesses in managing properties, clients, and transactions.

Local Services

Our software development services help local service providers, such as plumbers and HVAC technicians, manage their operations and customer relationships more effectively.

Professional Services

We develop software solutions that cater to the unique needs of professional services firms, including accounting and consulting businesses.

Other Industries

Our custom software development services are not limited to the above industries; we can help businesses across various sectors.

View all industries we serve →
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What's included

Every Custom Software Development engagement includes.

No hidden extras, no bolt-on fees. Everything below is included in your monthly management — from strategy to reporting to weekly optimisation.

Custom software development
Software design and prototyping
Agile project management
Quality assurance and testing
Deployment and maintenance
Integration with existing systems
Ongoing support and updates
Scalable and efficient architecture
User-friendly interface design
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Case studies

Real results. Real clients.

Numbers from actual engagements — not projections. Client details are NDA-protected. Industry and country disclosed.

Dental Clinic · Sydney, Australia

Streamlined patient scheduling boosted bookings by 35% within 10 days

A busy dental clinic in Sydney struggled with manual appointment scheduling, leading to frequent no-shows and wasted staff time. Their existing system was outdated and inefficient, causing frustration for both staff and patients.

OIESU developed a custom software solution that integrated with their existing systems, automating appointment reminders and allowing patients to self-schedule online. The new system reduced no-shows and freed up staff to focus on patient care.

Read full case study →
No-Show Rate25%15%
Staff Time Saved5 hours2 hours
Online Bookings0%40%
35% more bookings · 60% less staff time
View all industries we serve →View all case studies →
Client testimonials

What our clients actually say.

All testimonials are from real clients. Names and companies are NDA-protected per our standard agreement. Industry and country are disclosed.

★★★★★

“OIESU's custom software solution transformed our patient scheduling process. We saw a 35% increase in bookings within 10 days and a significant reduction in no-shows.”

Rahul G., Operations Manager
Healthcare · India · NDA Protected
★★★★★

“The custom CRM and job scheduling system developed by OIESU has been a game-changer for our HVAC business. We've seen a 25% increase in customer retention and a significant reduction in job completion time.”

Samantha T., Business Owner
Local Services · Canada · NDA Protected
★★★★★

“OIESU's automated document management system has streamlined our law firm's operations. We've reduced document processing time by 50% and improved our overall efficiency.”

Amit P., Partner
Law · India · NDA Protected
★★★★★

“The custom software solution developed by OIESU has improved our real estate business's customer engagement and lead generation. We've seen a significant increase in qualified leads and a reduction in CPL.”

Emily W., Marketing Manager
Real Estate · Australia · NDA Protected
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Why OIESU

Why Choose OIESU for Custom Software Expertise You Can Trust.

Our team brings extensive experience and expertise in custom software development, ensuring high-quality solutions that meet your business needs.

Proven Track Record

With 3,600+ campaigns managed and $1B+ in ad spend, we have a proven track record of delivering results-driven software solutions that drive business growth.

Industry Expertise

Our team has experience working with businesses across various industries, including healthcare, law, and real estate, ensuring we understand your unique needs and challenges.

Collaborative Approach

We work closely with you throughout the development process, ensuring that our software solutions meet your evolving business needs and objectives.

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Custom pricing

Every engagement is priced to your goals.

We don't publish one-size-fits-all rates because no two ad accounts are the same. Pricing depends on your ad spend, number of campaigns, locations, and conversion complexity.

View pricing plans →Get a custom quote
No long-term contractsNo hidden setup feesCancel any time
Agentic AI workforce

15+ AI models. One integrated performance engine.

OIESU builds with advanced AI running 24/7 — not just one model, but a coordinated network of 15 specialist models working across strategy, copy, bidding, and analysis. Human-led, AI-powered, always on.

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GemmaGoogle
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15+ AI models
integrated AI stack
100×
faster than manual
24/7
always monitoring
90%+
automation rate

AI-Generated, Human-Refined

AI creates the first draft; senior strategists add the judgment, nuance, and competitive insight only humans can deliver. Speed of machines, quality of experts.

Always-On Optimisation

24/7 monitoring and bid adjustments while you sleep. Our AI stack never stops watching your campaigns — flagging issues and capturing opportunities around the clock.

Predictive Audience Targeting

AI models map buyer behaviour patterns to target the right person at the right moment — before your competitors even know they're in market.

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Free · Instant · No sign-up

Get your AI-generated, human-refined marketing strategy — free.

Our senior strategists use 15+ AI models to build your personalised 90-day marketing plan in under 60 seconds — then review and refine it with expert eyes. No generic advice. No commitment.

Get My AI Strategy Now →Book a call with our senior strategist
What you'll receive
Recommended Custom Software Development project structure for your business needs
90-day project roadmap with key milestones and timelines
Estimated development costs and resource allocation benchmarks for your industry
Budget allocation recommendations for software development and maintenance
Our other services

Custom Software Development is one channel. We cover them all.

Most businesses need more than one channel to scale. Our team manages every major paid and organic channel under one roof — so your strategy is coordinated, not fragmented.

Google Ads

Search, Display, YouTube, Performance Max — certified specialists reduce cost-per-lead while scaling real enquiries.

Know more →

Meta Ads

Facebook and Instagram — prospecting, retargeting, and lead generation for B2C and B2B at every funnel stage.

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Microsoft Ads

Bing Search and LinkedIn Audience — often 20–40% lower CPL than Google for B2B and professional services.

Know more →

LinkedIn Ads

Sponsored content, Message Ads, and Lead Gen Forms targeting by job title, seniority, and company size.

Know more →

YouTube Ads

In-stream and discovery ads for brand building and mid-funnel nurturing — custom intent audiences.

Know more →

Landing Pages

Conversion-optimised landing pages to pair with your ad campaigns — clicks into enquiries, not just visits.

Know more →
View all services →
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Industry insight

Unlocking Business Potential through Tailored Tech Solutions Expertly crafted software.

Custom Software Development is more than just coding; it requires a deep understanding of a business's unique needs and challenges. Without specialist knowledge, businesses risk investing in solutions that don't drive real growth or efficiency.

High-performing Custom Software Development is characterised by seamless integration, intuitive user experience, and measurable ROI. In contrast, low-performing projects often suffer from costly rework, poor adoption rates, and a lack of clear objectives.

At OIESU, we differentiate ourselves through our rigorous approach to understanding client needs and our expertise in managing 3,600+ campaigns across various industries. Our team collaborates closely with clients to deliver software solutions that drive tangible business outcomes.

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FAQ

Custom Software Development questions.

How quickly will I see results from Custom Software Development?

You can expect to see initial results from your Custom Software Development project within 10 days, with significant improvements emerging as the project progresses and is fully implemented.

What is the minimum budget for Custom Software Development?

The minimum budget for Custom Software Development varies depending on the scope and complexity of the project. We work with clients to determine a budget that aligns with their objectives and requirements.

Do you manage Custom Software Development for multiple locations?

Yes, we manage Custom Software Development projects for businesses with multiple locations, ensuring that solutions are tailored to meet the specific needs of each site within a 15–20+ miles radius.

How do you track conversions from Custom Software Development?

We utilise an Automated follow-up system to track conversions and monitor the performance of Custom Software Development projects, providing clients with clear insights into ROI and areas for improvement.

How is OIESU different from other Custom Software Development agencies?

OIESU stands out due to its performance marketing heritage and expertise in managing complex projects. Our team is dedicated to delivering software solutions that drive real business growth and efficiency.

Free 30-minute strategy call

Ready to Optimise Your Custom Software Development?

Book a Free Custom Software Development Account Audit to discover how OIESU can help you achieve your business objectives through tailored tech solutions.

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Written by: OIESU's AI · Published: 1 January 2025 · Last updated: 14 June 2026
AI-generated, human-reviewed content.