Top LLM Integration & Prompt Engineering Companies

LLM integration and prompt engineering is the work of putting a large language model, such as GPT, Claude, Gemini or Llama, inside an existing product or workflow so that it answers correctly from your own data. The firms build retrieval-augmented generation (RAG) over documents and databases, write and version the prompts, connect the model to tools and APIs, and set up evaluations and guardrails that catch wrong or unsafe output. Companies hire them when a chatbot demo works but fails on real questions, or when support, sales or operations teams want AI features in tools they already use.

Compare the firms here on shipped production features rather than demos, how they measure answer quality, and how they handle data privacy.

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

2,741 Companies

List of the Best LLM Integration & Prompt Engineering Agencies

S
Silverspace Inc
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Welcome to Silverspace Inc—where creativity merges with exceptional service. We don't merely offer IT solutions; we build the technological framework that elevates your business. Whether you need advanced web platforms, personalized software, or a robust tech infrastructure, our expertise can bring
Highlights
$25,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Greensboro, North Carolina, Us
Services Provided+12 Services
18% Custom Web Application Development
10% Frontend Development
10% Backend Development
8% API Development & Integration
AI Summary
“Silverspace Inc delivers customized IT solutions and proactive support across diverse industries, enhancing business efficiency and growth through innovative, tailored technology services.”
Allianze Infosoft
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Allianze InfoSoft is a software development firm that provides exceptional services in Artificial Intelligence (AI), IoT, and Digital Marketing. We deliver innovative solutions to clients around the world, all at affordable prices. Our additional areas of expertise include business intelligence, UI/
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Kakkanad, Kerala, In
Services Provided+14 Services
5% Machine Learning Model Development
4% Generative AI
3% LLM Integration & Prompt Engineering
3% Custom AI Chatbot Development
AI Summary
“Allianze InfoSoft is a global software development company specializing in AI, IoT, digital marketing, business intelligence, UI/UX design, and ERP solutions to enhance business competitiveness affordably.”
Times TX
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Digitalization-Centric. Prepared for Mittelstand. Built for the Future.
Highlights
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+6 Services
10% LLM Integration & Prompt Engineering
10% Machine Learning Model Development
5% Conversational AI & Voice Assistant Development
10% Mobile App Development (iOS & Android)
AI Summary
“Times TX focuses on digitalization solutions tailored for Mittelstand companies, delivering future-ready technologies and services that enhance business innovation and operational efficiency.”
TICON SYSTEM LIMITED
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
TiCON System Limited, operating in Korea, the USA, and Bangladesh, has been a proactive player in software development, IT outsourcing, communication services, and consultancy since 2007. Our company employs a driven and self-organized team skilled in delivering high-quality results at every phase o
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Seoul, Seoul, Kr
Services Provided+17 Services
3% MLOps & Model Deployment Infrastructure
3% Generative AI
4% IT Staff Augmentation
3% LLM Integration & Prompt Engineering
AI Summary
“TiCON System Limited is a global technology firm specializing in software development, IT outsourcing, consultancy, and cloud solutions, delivering innovative, cost-effective services since 2007.”
Motum
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Motum serves as your nearshore staff augmentation partner, helping you expand your technical team. You maintain control over the work, priorities, and performance just as you would with any internal employee, while Motum handles all behind-the-scenes processes, including recruitment, vetting, contra
Highlights
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+7 Services
13% IT Staff Augmentation
3% Other IT Consulting and SI
1% Machine Learning Model Development
1% Custom AI Chatbot Development
AI Summary
“Motum provides nearshore staff augmentation, delivering vetted mid- to senior-level experts in tech domains who integrate with U.S. teams, handling recruitment, compliance, and ongoing support seamlessly.”
Raffman
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
At Raffman, your success is our priority. We are committed to assisting businesses in navigating a constantly changing environment by providing solutions that foster growth, innovation, and measurable outcomes. With a focus on data, technology, and business intelligence, we collaborate with you to i
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
10-49
Employees
Services Provided+6 Services
5% Cloud Consulting & SI
8% BI & Big Data Consulting & SI
5% AI Strategy & Roadmap Consulting
4% Generative AI
AI Summary
“Raffman partners with businesses to drive growth and innovation through customized strategies leveraging data, technology, and business intelligence for measurable success.”
Amantya Technologies
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Amantya Technologies is a prominent company in product engineering and software development, recognized for providing high-quality solutions rapidly. We have a solid technical foundation and strong collaborations with OEMs, ensuring we deliver superior software products in record time. As a speciali
Highlights
$25-49/hr
Avg Hourly Rate
250-999
Employees
Gurugram, Haryana, In
Services Provided+13 Services
8% Mobile App Development (iOS & Android)
10% QA & Software Testing
8% Custom Web Application Development
3% Robotic Process Automation (RPA)
AI Summary
“Amantya Technologies excels in rapid product engineering and software development across wireless, 5G, IoT, cloud, embedded systems, automotive, and AI/ML domains, emphasizing quality and efficiency.”
Swiftly Apps Pty Ltd
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Welcome to Swiftly, your leading software development agency located in Australia. We focus on providing customized solutions, such as web and mobile app development, employing the most up-to-date methodologies and technologies, including AI integrations and blockchain. Our skilled team guarantees s
Highlights
$50,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+9 Services
18% Custom Web Application Development
15% Mobile App Development (iOS & Android)
7% LLM Integration & Prompt Engineering
8% Generative AI
AI Summary
“Swiftly Apps Pty Ltd. is an Australian software development agency delivering customized web and mobile applications with advanced technologies like AI and blockchain, ensuring scalable, timely, and budget-conscious solutions.”
Systep Consulting LLC
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Located in Midtown Manhattan, we are the U.S. branch of Systep Consulting Ltd., a UK-based Salesforce Consulting and Managed Services Partner. After several years of successfully providing Salesforce solutions throughout Europe, we have branched out into the United States to offer the same caliber o
Highlights
$100-149/hr
Avg Hourly Rate
10-49
Employees
New York, New York, Us
Services Provided+12 Services
2% Other IT Consulting and SI
1% Unified Communications Consulting & SI
1% MLOps & Model Deployment Infrastructure
2% Workflow Automation (Zapier / Make / n8n)
AI Summary
“Systep Consulting LLC, a UK-based Salesforce partner, offers expert managed services, implementation, consultancy, and staffing solutions, expanding its dependable, innovative expertise to the U.S. market.”
quadrin technlogy
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
We are a group of seasoned software engineers and specialists in ML/AI, boasting more than 20 years of experience in developing software, cloud solutions, and AI/ML products aimed at business growth. Our goal is to enable our clients to maximize the use of data and AI by offering cost-effective, eff
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+7 Services
8% AI Strategy & Roadmap Consulting
5% LLM Integration & Prompt Engineering
15% Machine Learning Model Development
8% Custom AI Chatbot Development
AI Summary
“Quadrin Technology leverages over 20 years of expertise in software engineering and AI/ML to deliver customized, cost-efficient data and cloud solutions for business growth.”

...

...

...

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.

Top LLM Integration & Prompt Engineering Companies

List of the Best LLM Integration & Prompt Engineering Agencies

S

Where buyers look next

Latest insights & expert perspectives

Questions to Ask a Software Development Agency: Six With Proof

How to Compare Software Development Quotes Priced 5x Apart

AI Agent Development Cost: Build, Tokens, Reliability

One Platform. One Promise. One Trust.