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

Esquiretec
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We offer IT Solutions and Support, providing comprehensive IT services, expert technical assistance, and reliable AMC solutions to ensure the optimal performance of your systems. Website Development We create custom, responsive websites that align with your brand and enhance user engagement. Soc
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided
20% Legacy System Modernization
14% API Development & Integration
33% IT Staff Augmentation
33% Operational Process Consulting
AI Summary
“Esquiretec delivers comprehensive IT solutions including website development, digital marketing, ERP integration, and support services to optimize business performance and enhance online presence.”
Sophyx AI
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
SophyxAI is a premier technical consultancy and product engineering company made up of former Principal Architects and Product Leads from Google and Meta. We focus on designing and implementing production-quality Agentic AI systems and scalable cloud infrastructure to automate essential workflows, g
Highlights
$100,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
13% AI Strategy & Roadmap Consulting
10% LLM Integration & Prompt Engineering
7% Custom AI Chatbot Development
10% Machine Learning Model Development
AI Summary
“SophyxAI is a technical consultancy specializing in designing and implementing scalable Agentic AI systems, cloud infrastructure, and legacy modernization to help enterprises deploy secure, data-driven workflows.”
Whale Song
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Whale Song serves as a strategic and engineering partner for organizations where reliability, compliance, and efficiency are essential. We operate at the convergence of IT and Operations Technology (OT), assisting regulated and critical sectors like Finance, Healthcare, and Heavy Industry in moderni
Highlights
$75,000+
Min Project Size
10-49
Employees
Houston, Texas, Us
Services Provided+3 Services
22% Custom Web Application Development
12% Legacy System Modernization
20% Product UX Strategy
13% UX Research & Usability Testing
AI Summary
“Whale Song partners with regulated industries to modernize workflows, automate tasks, and enhance reliability, combining strategy and engineering with a product-focused, compliant, and scalable approach.”
Solcre Software & Staff Augmentation
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We are Solcre, a nearshore technology consulting firm dedicated to helping organizations expedite their digital transformation through tailored software development and staff augmentation. We act as a genuine extension of our clients’ teams, embedding ourselves in their processes, tools, and culture
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Montevideo, Montevideo, Uy
Services Provided+6 Services
15% API Development & Integration
13% Legacy System Modernization
15% Custom Web Application Development
8% Mobile App Development (iOS & Android)
AI Summary
“Solcre Software & Staff Augmentation is a nearshore technology consulting firm offering tailored software development, staff augmentation, system integration, and digital transformation to enhance scalability and efficiency.”
TurnKey Lender
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
TurnKey Lender is a leading provider of automation solutions, risk management, and loan decision-making services. Its main offering is a comprehensive platform that automates the complete lending process and features an AI-powered origination engine. Established in 2014, the startup has gained recog
Highlights
$1,000+
Min Project Size
50-249
Employees
Sg
Services Provided+4 Services
7% Cloud Consulting & SI
14% Machine Learning Model Development
3% Custom AI Chatbot Development
10% AI Strategy & Roadmap Consulting
AI Summary
“TurnKey Lender delivers AI-powered automation and risk management solutions for diverse lending sectors, enabling global lenders to streamline loan origination and decision-making processes effectively.”
Cygnet.One
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Cygnet.One is an international partner specializing in digital transformation and engineering, offering consulting in data analytics, enterprise AI solutions, and scalable cloud and engineering services for mid-sized and large organizations. Our expertise covers the entire digital lifecycle—includin
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
1000-9999
Employees
Princeton, New Jersey, Us
Services Provided+14 Services
8% Generative AI
3% IT Staff Augmentation
3% Workflow Automation (Zapier / Make / n8n)
6% Cloud Consulting & SI
AI Summary
“Cygnet.One delivers expert digital transformation services, including data analytics, enterprise AI, cloud engineering, and quality assurance, enabling scalable, AI-driven solutions for mid to large organizations globally.”
Grey8 Technologies Private Limited
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
I am the Founder and Principal Consultant at Grey8, a company that specializes in AI systems engineering and product development. With over two decades of experience in distributed systems, cloud platforms, and large-scale product engineering, I assist both startups and established companies in tran
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Hyderabad, Telangana, In
Services Provided+2 Services
13% AI Strategy & Roadmap Consulting
13% Custom AI Chatbot Development
17% Machine Learning Model Development
7% Conversational AI & Voice Assistant Development
AI Summary
“Grey8 Technologies Private Limited specializes in AI systems engineering and product development, enabling startups and enterprises to build scalable, reliable, and secure AI-driven platforms and cloud-native solutions.”
Pragmatic Coders
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Pragmatic Coders, located in Kraków, serves as a product collaborator for companies in sectors such as FinTech, HealthTech, legacy systems, and AI automation, assisting them in creating scalable digital products. Since our inception in 2014, we have produced over 150 products with a team of more tha
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Krakow, Lesser Poland, Pl
Services Provided+4 Services
12% Custom Web Application Development
5% Mobile App Development (iOS & Android)
12% Legacy System Modernization
5% E-Commerce Development
AI Summary
“Pragmatic Coders, based in Kraków, delivers scalable digital products in FinTech, HealthTech, and AI, combining development, product management, and UX for rapid, business-focused solutions.”
LDC SOFTWARE AND CONSULTANCY
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We create and implement customized software solutions that achieve meaningful outcomes. Our KAMELON software is a robust ERP system that provides comprehensive solutions for various sectors, including Airlines, Aviation, Retail, and Travel. Our established offerings include KAMELON Airlines, which a
Highlights
$100,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Istanbul, Tr
Services Provided
40% Custom Web Application Development
15% Mobile App Development (iOS & Android)
30% E-Commerce Development
15% Legacy System Modernization
AI Summary
“LDC SOFTWARE AND CONSULTANCY develops tailored software solutions, offering robust ERP systems like KAMELON for Airlines, Quality Management, and Ecommerce across diverse industries.”
RissaSoft
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
RissaSoft is a recently founded IT service company offering a range of services including mobile app development, website design, CRM development, digital marketing, and Fintech solutions. Our team delivers a comprehensive software development lifecycle that begins with the discovery phase and concl
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Kayseri, Kayseri, Tr
Services Provided
15% E-Commerce Development
40% Mobile App Development (iOS & Android)
30% Custom Web Application Development
15% Legacy System Modernization
AI Summary
“RissaSoft is an IT services firm specializing in mobile apps, web design, CRM, digital marketing, and Fintech, providing end-to-end software development tailored to client needs.”

...

...

...

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.