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Top 10 Custom Accounting Software Development Companies

Business 26 Nov, 2025 / Development
Tomislav Horvat

Author:

Tomislav Horvat

Key Takeaways

  • Gauss - Croatian company with Deloitte Technology Fast 50 recognition, offering AI-powered accounting solutions starting at $10,000+ with ISO certifications and specialized Gauss Box platform for compliance automation.

  • Itransition - 27-year veteran with 3,000+ professionals across 40+ countries, specializing in enterprise ERP financial modules and comprehensive accounting solutions starting at $25,000+.

  • Geniusee - AWS Advanced Tier Service Partner from Ukraine offering mobile accounting apps and API integrations with major platforms like SAP, Oracle, and QuickBooks starting at $50,000+.

  • Broscorp - Israeli data-focused company specializing in real-time analytics integration and financial reporting with Apache NiFi technology stack, starting at $10,000+.

  • Unicrew - Nearshore development company operating across 6 countries with 100+ IT professionals, emphasizing system integration and tax compliance solutions starting at $50,000+.

  • HDWEBSOFT - Vietnamese offshore provider with competitive $22/hour rates and 250+ employees, delivering enterprise-grade accounting systems starting at $10,000+.

  • Devox Software - Ukrainian fintech specialist focusing on general ledger management and fraud detection systems with ISO compliance, starting at $25,000+.

  • Matellio - San Jose-based company with 98% client retention rate, specializing in AI/ML-powered SaaS accounting solutions starting at $100,000+.

  • Chetu - 24-year Florida-based company with 2,800+ developers offering extensive API integrations and cross-platform mobile accounting apps starting at $10,000+.

  • Trinetix - Nashville company with Big Four accounting partnership, serving Fortune 500 clients with AI-powered automation and blockchain transparency solutions starting at $50,000+.

1. Gauss

  • Founded: 2012

  • Location: Osijek, Croatia

  • Website: gauss.hr

  • Specializes In: Custom business software development, cloud-based accounting solutions, AI-powered business automation

  • Services: Custom software development, Gauss Box platform, accounting system development, ERP solutions, document management systems, payroll automation, AI integration, mobile app development, e-commerce solutions, project management tools

  • Starting Price: $10,000+

We are a Croatian technology company that earned spots on Deloitte's Technology Fast 50 Central Europe list in both 2016 and 2017, reflecting over a decade of consistent growth in custom software development.

Our Gauss Box platform tackles the specific challenges you face with accounting compliance and regulatory changes through automated payroll management, expense tracking, and real-time financial reporting via customizable dashboards.

You'll benefit from our AI-powered features that handle intelligent data categorization, document scanning, and fraud detection while reducing manual errors.

Our company holds ISO 9001, ISO 27001, and ISO 30301:2019 certifications for data security and quality management.

With 60+ employees and extensive experience across startups to enterprises with 500+ staff, we develop everything from simple automation tools to complex accounting systems that integrate seamlessly with your existing business processes.

2. Itransition

  • Founded: 1998

  • Location: Denver, Colorado

  • Website: itransition.com

  • Specializes In: Enterprise accounting software, ERP financial modules, specialized process-oriented accounting tools

  • Services: Custom accounting software development, ERP development with financial modules, accounts payable/receivable automation, general ledger management, invoicing systems, tax calculation software, bank reconciliation tools, financial reporting solutions, software integration, QA testing, maintenance and support

  • Starting Price: $25,000+

This 27-year veteran in software development operates across 40+ countries with 3,000+ professionals and has completed 1,530+ projects since 1998.

Their accounting software expertise spans from comprehensive ERP suites with advanced financial modules to specialized tools for AP/AR operations, invoicing automation, and tax calculation.

You'll find their solutions particularly strong in journal entry recording, profit and loss reporting, and bank reconciliation capabilities.

Itransition earned recognition on Inc. 5000 lists multiple years running and holds partnerships with Microsoft, Amazon, Salesforce, and Atlassian.

Their development approach includes AI-powered features for data categorization and fraud detection, while ensuring GDPR, IFRS, and GAAP compliance.

The company's track record includes enhancing billing management solutions for accounting software providers and developing Odoo-based systems with integrated ERP, CRM, and payroll capabilities for medical organizations.

3. Geniusee

  • Founded: 2017

  • Location: Kyiv, Ukraine

  • Website: geniusee.com

  • Specializes In: Custom accounting software development, financial planning solutions, API integrations with major accounting platforms

  • Services: Mobile accounting applications, API integrations (SAP, Oracle, Xero, QuickBooks, MS Dynamic GP, SageOne), billing software development, bookkeeping solutions, payroll management systems, inventory accounting, fund accounting, contract management, audit software, financial planning tools, AIS design

  • Starting Price: $50,000+

This AWS Advanced Tier Service Partner has completed 180+ projects since 2017 with 200+ certified professionals across engineering hubs in Ukraine and Poland.

 Their accounting expertise covers everything from mobile apps for Android, iOS, and Windows to complex API integrations with major platforms like SAP, Oracle, Xero, and QuickBooks.

 You'll benefit from their specialized approach to fund accounting for non-profits, automated billing systems for AR/AP management, and comprehensive payroll solutions with time tracking and tax management.

Notable client success includes cutting development time by 50% and achieving 10,000+ daily active users for deployed applications.

 The company holds ISO 9001:2015 and ISO 27001 certifications alongside AWS Lambda Service Delivery Designation.

 Their accounting solutions emphasize scalable infrastructure design, ensuring seamless integration with CRM and ERP systems while maintaining compliance with legal requirements and audit standards.

4. Broscorp

  • Founded: 2016

  • Location: Israel

  • Website: broscorp.net

  • Specializes In: Data-driven accounting applications, financial reporting software, real-time analytics integration

  • Services: Custom accounting software development, expense report software, point-of-sale systems, financial reporting solutions, bookkeeping automation, ETL data processing, business intelligence integration, API development, real-time data streaming, cloud migration services

  • Starting Price: $10,000+

This data-focused development company has delivered software solutions across 12+ countries since 2016, with AWS Certified Cloud Practitioners leading their technical team.

Their accounting software approach emphasizes real-time data processing and comprehensive analytics, allowing you to fetch financial data from virtually any source and build detailed reports on top.

You'll find their expertise particularly valuable for income statements, balance sheets, and cash flow reporting that integrate seamlessly with existing ERP systems.

Broscorp's solutions stand out through their real-time financial data pipeline capabilities, processing millions of events daily without outages.

Their accounting applications feature point-of-sale integration, inventory tracking, and automated stock management with analytical systems for identifying popular products and losses.

The company's Apache NiFi, Java, and ClickHouse technology stack ensures scalable and maintainable solutions that reduce expenses as your business grows while maintaining secure data handling to prevent valuable information leaks.

5. Unicrew

  • Founded: 2012

  • Location: Lviv, Ukraine

  • Website: unicrew.com

  • Specializes In: Custom accounting software development, financial reporting automation, compliance-focused solutions

  • Services: Custom accounting software development, payroll management systems, invoicing automation, financial reporting tools, bookkeeping automation, tax compliance functions, system integration, staff augmentation, web and mobile development, QA testing, maintenance and support

  • Starting Price: $50,000+

This nearshore development company operates across 6 countries with offices in Ukraine, Poland, Azerbaijan, Estonia, UK, and US, employing 100+ IT professionals who have delivered solutions for 120+ clients worldwide.

Their accounting software development follows a comprehensive 6-stage process from discovery through ongoing maintenance, emphasizing payroll management, invoicing automation, and tax compliance functions tailored to your specific business requirements.

Unicrew's approach centers on system integration capabilities, seamlessly connecting new accounting software with existing ERP, CRM, and third-party applications.

You'll appreciate their focus on rigorous testing and security protocols before deployment, plus comprehensive staff training to ensure smooth transitions.

The company earned recognition as one of Ukraine's Top Web Development Companies for 2022 and maintains a $15M annual revenue with consistently 5-star Clutch reviews from clients who highlight their ability to reduce AWS costs by 30% while accelerating product development and rollout timelines.

6. HDWEBSOFT

  • Founded: 2012

  • Location: Ho Chi Minh City, Vietnam

  • Website: hdwebsoft.com

  • Specializes In: Custom accounting software development, offshore software solutions, enterprise-level financial systems

  • Services: Custom accounting software development, financial reporting solutions, bookkeeping automation, payroll management systems, invoice processing, web application development, mobile app development, software outsourcing, UI/UX design, QA testing, maintenance and support

  • Starting Price: $10,000+

This Vietnamese software development firm has grown from 2 engineers in 2012 to 250+ employees serving clients across North America, Europe, Oceania, and Asia.

Their expertise spans Python, NodeJS, .NET Core, Java, ReactJS, Angular, and VueJS with specialized experience in Laravel and Django frameworks for developing comprehensive accounting systems.

You'll find their $22/hour average rate competitive for offshore development while maintaining enterprise-grade quality standards.

HDWEBSOFT's accounting solutions emphasize custom web applications and mobile platforms designed for businesses requiring financial reporting automation and bookkeeping integration.

The company has delivered projects for clients in USA, Australia, UK, Israel, Japan, Germany, Netherlands, Singapore, and Hong Kong, demonstrating their ability to handle diverse regulatory requirements and compliance standards.

Their development process includes business analysis, UI/UX design, front-end and back-end development, QA testing, and ongoing maintenance and support to ensure your accounting software evolves with changing business needs and regulatory requirements.

7. Devox Software

  • Founded: 2018

  • Location: Kyiv, Ukraine

  • Website: devoxsoftware.com

  • Specializes In: General ledger management software, accounts payable/receivable automation, fintech solutions

  • Services: Custom accounting software development, general ledger systems, accounts payable/receivable management, financial reporting solutions, payment processing integration, fraud detection systems, blockchain-powered financial platforms, automated data transfer, compliance solutions, mobile app development, web development, staff augmentation

  • Starting Price: $25,000+

This Ukrainian fintech specialist operates with 100+ experts across Poland, Romania, and Ukraine.

Their accounting expertise centers on general ledger management software that records, classifies, and summarizes financial data for accurate statement generation.

You'll appreciate their focus on automated accounts payable and receivable processes that eliminate manual data entry while reducing human errors through seamless integration capabilities.

Devox Software follows ISO 9001 and ISO/IEC 27001 principles with a proven track record of 5+ year median client engagements and 44% annual growth.

Their technical approach combines Angular, React, Vue.js frontend development with .NET, Node.js, Java, PHP, and Python backends to create scalable solutions.

The company's accounting platforms feature real-time transaction processing, multi-currency support, GAAP and IFRS compliance, and advanced fraud detection algorithms powered by machine learning technologies that ensure both security and regulatory adherence.

8. Matellio

  • Founded: 2014

  • Location: San Jose, California

  • Website: matellio.com

  • Specializes In: Custom accounting software development, AI/ML-powered financial systems, SaaS accounting solutions

  • Services: Custom accounting software development, accounting mobile app development, SaaS platform development, legacy software modernization, API development and integration, payroll management systems, tax management solutions, general ledger automation, billing and invoicing platforms, financial reporting tools, fraud detection systems, UI/UX design, software testing, MVP development, data migration

  • Starting Price: $100,000+

This San Jose-headquartered company has expanded from 4 engineers in 2014 to 250+ professionals across offices in Denver, UK, and development centers in India.

Their accounting expertise combines traditional financial management with AI/ML algorithms for real-time market metrics and fraud detection capabilities.

You'll benefit from their 98% client retention rate and track record of 1,100+ project deliveries across diverse industry verticals, reflecting their ability to satisfy complex accounting requirements.

Matellio's approach leverages partnerships with AWS, Microsoft, GE Digital Alliance, and HPE to deliver cloud-based accounting solutions that support both hybrid and native app development.

Their services span the complete development lifecycle, from MVP creation and architecture re-engineering to SaaS migration and legacy modernization.

The company's $50-$99 hourly rate reflects their onshore-offshore methodology, where US-based project managers guide development teams to ensure seamless communication and eliminate information gaps throughout your accounting software development process.

9. Chetu

  • Founded: 2000

  • Location: Sunrise, Florida

  • Website: chetu.com

  • Specializes In: Custom accounting software development, API programming and integrations, mobile accounting applications

  • Services: Custom accounting software development, accounts payable/receivable platforms, API programming, bookkeeping software, fund accounting solutions, mobile accounting apps, payroll software, tax preparation systems, inventory management platforms, ERP integrations, AIS architecture development, financial reporting tools

  • Starting Price: $10,000+

This Florida-based company has operated for 24+ years with 2,800+ skilled developers across offices in the US, Europe, and Asia, serving everyone from startups to Fortune 5000 companies.

Their accounting expertise spans API integrations with major platforms like QuickBooks, SAP, Oracle, Xero, and Microsoft Dynamic GP, plus custom development of cross-platform mobile apps for iOS, Android, and Windows devices.

You'll appreciate their real-time communication model that operates within your time zone for true "branch location" collaboration.

Chetu's accounting solutions emphasize accounts payable and receivable automation that uploads inventory spreadsheets, creates purchase orders, and generates reports automatically.

Their development approach includes fund accounting programs for nonprofits and government organizations, payroll systems with automated tax deductions and benefits management, plus bookkeeping software that handles daily financial transactions.

The company ensures you retain full source code and IP ownership with no licensing fees, while their industry-specific virtual divisions provide domain expertise tailored to your business requirements and regulatory compliance needs.

10. Trinetix

  • Founded: 2011

  • Location: Nashville, Tennessee

  • Website: trinetix.com

  • Specializes In: Big Four accounting technology solutions, AI-powered accounting automation, cloud-based financial systems

  • Services: Custom accounting software development, technology consulting with Big Four accounting experience, AI-powered accounting automation, cloud-based accounting solutions, process automation and workflow optimization, financial reporting and analytics, legacy system modernization, blockchain-powered transparency solutions, strategic accounting software development, enterprise software development, mobile app development, UI/UX design

  • Starting Price: $50,000+

This Nashville-headquartered company has grown from startup origins to 850+ professionals across 5 continents since 2011, completing 2,000+ client engagements for Fortune 500 companies including Coca-Cola, P&G, ExxonMobil, and McDonald's.

Their accounting expertise stems from a strategic partnership with a Big Four professional services firm, enabling them to deliver enterprise-grade accounting technology solutions that drive measurable business outcomes.

You'll benefit from their 85% customer retention rate and proven track record of unlocking $4+ billion in revenue for diverse client portfolios.

Trinetix's approach leverages Big Four accounting technology acumen to eliminate outdated elements and extract new value from every operational change.

Their solutions feature AI-powered automation for streamlined workflows, cloud-based scalability for growing enterprises, and blockchain-powered transparency for fraud prevention and stakeholder engagement.

With 80% senior-level talent and recent $10M funding for Latin American expansion, the company combines strategic consulting with hands-on development to transform accounting processes into valuable sources of mission-critical insights that support long-term business growth and competitive positioning.

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