Top HVAC Legacy System Modernization Companies

Discover Legacy System Modernization companies serving the HVAC industry. Compare services, pricing, and capabilities to find the right partner on Edverise.

How this list is built

We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

4,482 Companies

Top HVAC Legacy System Modernization Companies

AppsigFun
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
AppsingFun is an information technology startup based in Bangladesh. We take pleasure in our work at AppsingFun and are proud to offer a variety of services, including IT resource augmentation (providing a vetted talent pool for both onshore and offshore team support), outsourcing, custom software d
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+6 Services
5% Legacy System Modernization
5% E-Commerce Development
17% Custom Web Application Development
7% QA & Software Testing
AI Summary
“AppsingFun is a Bangladesh-based IT startup offering diverse services including software development, IT resource augmentation, AI agent development, quality assurance, outsourcing, and cloud migration.”
ITsolx (PVT) LTD
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We are a consulting and software development company specializing in digital transformation, providing innovative engineering solutions for both domestic and international businesses. We help them navigate the complex challenges that arise during their digital transformation processes. Since 2018, w
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Lk
Services Provided+9 Services
17% Custom Web Application Development
15% Mobile App Development (iOS & Android)
10% AR/VR & Mixed Reality Services
10% Software Development Services
AI Summary
“ITsolx (PVT) LTD. is a consulting and software development firm specializing in digital transformation, delivering innovative engineering solutions to domestic and global clients since 2018.”
Mobile App Experts
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Mobile App Experts is a mobile app development company located in the UK. We focus on creating apps for iOS, Android, and cross-platform environments. Our team consists of highly skilled mobile app developers who deliver comprehensive design and development services for iPhone, iPad, and Android app
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Services Provided+5 Services
50% Mobile App Development (iOS & Android)
10% Custom Web Application Development
5% E-Commerce Development
3% Legacy System Modernization
AI Summary
“Mobile App Experts is a UK-based company specializing in iOS, Android, and cross-platform mobile app development, offering skilled developers and comprehensive design services globally.”
Abaxsoft Solutions Pvt Ltd
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Abaxsoft Solutions, a mobile app development firm based in India, is leading businesses into a new era of expansion. Recognized as one of India’s top software development companies, we have achieved remarkable progress in a short span of time. From websites and eCommerce platforms to local delivery
Highlights
10-49
Employees
Indore, Madhya Pradesh, In
Services Provided+8 Services
10% Custom Web Application Development
7% E-Commerce Development
13% Mobile App Development (iOS & Android)
3% Legacy System Modernization
AI Summary
“Abaxsoft Solutions Pvt Ltd, a leading Indian software developer, delivers diverse high-quality digital products including mobile apps and eCommerce platforms to address global business challenges efficiently.”
Titani Global Solutions
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Titani Solutions, part of Titan Technology, offers more than 11 years of experience in outsourced software development. We specialize in delivering tailored solutions that meet the unique requirements of each client, enabling them to reach their objectives effectively and accurately.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
250-999
Employees
Services Provided+4 Services
23% Custom Web Application Development
7% QA & Software Testing
3% Legacy System Modernization
20% IT Staff Augmentation
AI Summary
“Titani Global Solutions leverages over 11 years in outsourced software development to deliver customized solutions that effectively address diverse client needs and objectives.”
EverBright IT GmbH
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
EverBright IT is a founder-led IT consulting company located near Munich, Germany. We assist businesses throughout the DACH region in transforming AI, Cloud, and Software Engineering from mere buzzwords into fully operational solutions that deliver measurable results. Established by Sergej Bardin (C
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided+9 Services
3% Cloud Consulting & SI
8% LLM Integration & Prompt Engineering
8% AI Agent & Multi-Agent System Development
3% Custom AI Chatbot Development
AI Summary
“EverBright IT GmbH, a Munich-based consultant, delivers AI-driven automation, cloud migration, and custom software engineering with senior expertise, transforming complex projects into practical, scalable solutions for DACH clients.”
Technova Design
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
1. **Cutting-Edge Digital Solutions** We are a modern IT design studio focused on developing user-friendly digital products. From mobile applications to large-scale enterprise systems, we provide creative designs that address real-life challenges. 2. **Diverse Expertise** Our team merges skills
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Services Provided+5 Services
20% Frontend Development
4% Legacy System Modernization
10% CMS Development & Customization
8% Product UX Strategy
AI Summary
“Technova Design is a modern IT studio specializing in user-friendly digital products, integrating design and technology to deliver innovative, client-focused solutions that drive business growth.”
vTech Solution Inc
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
vTech Solutions Inc. is a Managed IT Services company located in Washington DC, primarily focused on Cloud Computing and Professional Services. Founded in January 2006 in Virginia as an IT Professional firm, vTech has consistently grown over the years, expanding its service offerings to encompass IT
Highlights
$50,000+
Min Project Size
250-999
Employees
Washington, District Of Columbia, Us
Services Provided+25 Services
5% Other IT Consulting and SI
2% BI & Big Data Consulting & SI
2% ERP Consulting and SI
3% IT Staff Augmentation
AI Summary
“vTech Solutions Inc., based in Washington DC since 2006, offers comprehensive Managed IT Services including cloud computing, consulting, software solutions, and AI tools, recognized for growth and quality delivery.”
A
Astreak
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Astreak is a forward-thinking technology firm focused on delivering advanced software solutions, AI tools, and DevOps services that enable businesses to flourish in the digital era. Our team of skilled experts is committed to assisting clients in overcoming obstacles, optimizing workflows, and attai
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
7% E-Commerce Development
9% Legacy System Modernization
9% Custom Web Application Development
25% DevOps Engineering
AI Summary
“Astreak is a technology firm delivering advanced software, AI, and DevOps solutions to help businesses optimize workflows, overcome challenges, and achieve digital transformation goals.”
Bytearoo
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
At Bytearoo, we envision, engineer, modernize, digitize, automate, and unlock potential. As an IT firm, we focus on delivering innovative and tailored solutions for businesses of all sizes. Our experienced team provides a comprehensive range of services, including software development, web developme
Highlights
2-9
Employees
Services Provided+3 Services
10% Custom Web Application Development
7% API Development & Integration
5% Legacy System Modernization
8% Mobile App Development (iOS & Android)
AI Summary
“Bytearoo is a dynamic IT firm specializing in customized software, web, and mobile app development, offering innovative, on-time, budget-conscious solutions that empower businesses and foster lasting partnerships.”

...

...

...

Latest insights & expert perspectives

Explore data-backed surveys with inputs from top industry experts.

Stated minimum project sizes among the firms listed under software development services on Edverise, with the $50,000 band shaded

Vendor Selection

Questions to Ask a Software Development Agency: Six With Proof

A vetting script for second-round agency calls: six questions, the document each answer has to produce, and what a directory listing or a badge really proves.

Nihar Ranjan Rout

10/31/2026

Three software development quotes of $38,000, $94,000 and $210,000 converted to effective hourly rates of $79, $73 and $87.50

Vendor Selection

How to Compare Software Development Quotes Priced 5x Apart

Three bids for the same build are rarely comparable as written. A normalization checklist, a weighted grid adapted from FAR Part 15.3, and the hourly arithmetic.

Akash Mohapatra

10/31/2026

Chart of minimum project size stated by firms listed under AI agent development on Edverise, with the $50,000 band highlighted

Vendor Selection

AI Agent Development Cost: Build, Tokens, Reliability

An AI agent has three costs. Compute the monthly token bill from published list prices, then set the build quote against what listed firms actually charge.

Santanu Prasad Sahoo

10/31/2026

Check All Our Blogs

One Platform. One Promise. One Trust.

Edverise is building the trusted way to find tech vendors. List your company early, or talk to us about backing the platform.