Top LLM Integration & Prompt Engineering Companies

A high-performing LLM Integration & Prompt Engineering solution can accelerate growth, boost customer engagement, and create new revenue streams—but only if it's built by a team you trust. Edverise makes it easy to connect with leading LLM Integration & Prompt Engineering companies around the globe. Providers and reviews are vetted extensively to ensure that we capture verified client feedback, project details, and measurable results. Use Edverise's filters to sort partners by budget, industry expertise, and location. Start comparing profiles to find the right match for your project.

Ratings Updated: August 7, 2026

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2,865 Companies

List of the Best LLM Integration & Prompt Engineering Agencies

FastCTOProfile set up by Edverise AI
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We don't make a profit from startups. How does that work? We collaborate with a wide range of companies, from very early stage, pre-revenue startups to established Series D+ unicorns, investors, acquirers, accelerators, and more. Our aim when partnering with startups is to keep our costs as low as p
Highlights
150+
Avg Hourly Rate
50-249
Employees
Boston, Massachusetts, Us
Services Provided+4 Services
50% AI Strategy & Roadmap Consulting
30% LLM Integration & Prompt Engineering
20% Custom AI Chatbot Development
50% Product UX Strategy
AI Summary
“FastCTO partners with diverse companies, offering cost-efficient tech consulting and due diligence, maintaining low-profit margins to support startups and sustain a collaborative ecosystem.”
AI Automation Agency 360Profile set up by Edverise AI
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AI Automation Agency 360 is a performance-focused AI development and automation consulting company dedicated to assisting businesses in optimizing their operations, lowering expenses, and accelerating growth through intelligent automation. Based in [Your Location], we specialize in creating customiz
Highlights
$10,000+
Min Project Size
100-149
Avg Hourly Rate
10-49
Employees
Services Provided+4 Services
10% AI Strategy & Roadmap Consulting
5% LLM Integration & Prompt Engineering
15% Custom AI Chatbot Development
10% Machine Learning Model Development
AI Summary
“AI Automation Agency 360 delivers tailored AI-driven automation solutions, enhancing operational efficiency and growth across diverse industries through integration with existing business tools and continuous optimization.”
Unlocking TechProfile set up by Edverise AI
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Your AI Engineering Partner — From Strategy to Implementation Unlocking Tech is a Portuguese AI engineering studio focused on developing tailored AI agents, intelligent software, and automation systems for companies committed to achieving operational success. We don’t just promote AI as an abstract
Highlights
$25,000+
Min Project Size
25-49
Avg Hourly Rate
10-49
Employees
Lisboa, Lisbon, Pt
Services Provided+5 Services
12% AI Strategy & Roadmap Consulting
13% LLM Integration & Prompt Engineering
15% Custom AI Chatbot Development
12% Machine Learning Model Development
AI Summary
“Unlocking Tech is a Portuguese AI engineering studio delivering tailored AI agents, intelligent automation, and customized platforms to optimize operations across various industries globally.”
PendoahProfile set up by Edverise AI
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Pendoah is a Houston-based software company that assists businesses across North America in transforming product strategies into fully operational systems with measurable results. We partner with leaders in sectors such as healthcare, finance, energy, public services, and SaaS who require more than
Highlights
$10,000+
Min Project Size
100-149
Avg Hourly Rate
50-249
Employees
Houston, Texas, Us
Services Provided+10 Services
30% QA & Software Testing
40% API Development & Integration
30% Custom Web Application Development
5% Generative AI
AI Summary
“Pendoah is a Houston-based software firm specializing in AI strategy, custom product development, and operational systems that deliver compliant, scalable, and measurable outcomes for various industries.”
LinnifyProfile set up by Edverise AI
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Linnify is an award-winning global technology partner that has been operating since 2016, with offices in both Europe and the U.S. We empower innovative companies to speed up their digital product development, making it faster, smarter, and more reliable than previously imagined. Whether for emergin
Highlights
$25,000+
Min Project Size
100-149
Avg Hourly Rate
10-49
Employees
Cluj-Napoca, Cluj, Ro
Services Provided+8 Services
40% Custom Web Application Development
25% Mobile App Development (iOS & Android)
20% API Development & Integration
15% SaaS Product Development
AI Summary
“Linnify is a global technology partner specializing in digital product development, offering services from strategy to AI, delivering scalable, user-focused solutions across diverse industries since 2016.”
Welf LabProfile set up by Edverise AI
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We assist businesses in enhancing their software development capabilities, speeding up project timelines, implementing advanced cloud solutions, and creating robust AI, web, and mobile applications. Locating skilled in-house developers and specialists can be quite challenging, as can collaborating w
Highlights
$10,000+
Min Project Size
25-49
Avg Hourly Rate
10-49
Employees
Hannover, Lower Saxony, De
Services Provided+5 Services
25% E-Commerce Development
50% Custom Web Application Development
25% Mobile App Development (iOS & Android)
25% Custom AI Chatbot Development
AI Summary
“Welf Lab enhances businesses' software development with expert in-house developers, advanced cloud solutions, and AI, web, and mobile applications through partnerships with leading cloud providers.”
HyperSense SoftwareProfile set up by Edverise AI
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HyperSense creates tailored AI agents designed for real-world applications rather than demonstrations. Established in 2003, our team of over 40 is based in Bucharest, with an additional office in Chicago. We deliver AI solutions for regulated sectors including insurance, logistics, fintech, proptech
Highlights
$25,000+
Min Project Size
50-99
Avg Hourly Rate
10-49
Employees
Schaumburg, Illinois, Us
Services Provided+7 Services
10% Mobile App Development (iOS & Android)
35% Custom Web Application Development
40% API Development & Integration
15% E-Commerce Development
AI Summary
“HyperSense Software delivers customized AI agents for regulated industries, integrating advanced reasoning with deterministic validation to optimize workflows, ensure compliance, and provide scalable, secure solutions.”
Founders Led StudioProfile set up by Edverise AI
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Founders Led is an AI transformation agency with exceptional skills in product development, management, workflow integration, and user experience. Based in Texas and San Francisco, we serve clients across the country. Founded in 2023 through the merger of a venture studio and a software development
Highlights
$25,000+
Min Project Size
100-149
Avg Hourly Rate
10-49
Employees
Southlake, Texas, Us
Services Provided+1 Services
70% Custom Web Application Development
30% Mobile App Development (iOS & Android)
40% Custom AI Chatbot Development
40% Machine Learning Model Development
AI Summary
“Founders Led Studio, an AI transformation agency based in Texas and San Francisco, delivers user-centric, intelligent web solutions through agile, founder-led AI development across diverse industries since 2023.”
I Verve IncProfile set up by Edverise AI
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**Empowering Businesses through Tailored Software and Digital Innovation** At I-Verve Inc., we specialize in developing custom software, product engineering, and digital transformation solutions designed to help businesses grow, streamline processes, and embrace innovation. We focus heavily on AI-d
Highlights
$5,000+
Min Project Size
50-99
Avg Hourly Rate
50-249
Employees
Edison, New Jersey, Us
Services Provided+7 Services
35% Custom Web Application Development
20% Mobile App Development (iOS & Android)
30% API Development & Integration
15% Legacy System Modernization
AI Summary
“I-Verve Inc. delivers tailored software, AI-driven automation, cloud integration, and digital transformation services across industries, enabling businesses to innovate, scale, and optimize operations effectively.”
Five JarsProfile set up by Edverise AI
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Five Jars is a comprehensive development agency dedicated to helping mission-driven organizations design and build effective web, mobile, and AI-powered solutions that generate significant impact. With nearly ten years of experience and over 100 successful launches, our platforms cater to a variety
Highlights
$10,000+
Min Project Size
100-149
Avg Hourly Rate
10-49
Employees
Brooklyn, New York, Us
Services Provided+9 Services
55% Custom Web Application Development
45% Mobile App Development (iOS & Android)
25% LLM Integration & Prompt Engineering
20% AI Model Fine-Tuning & Training
AI Summary
“Five Jars is a versatile development agency delivering strategic design, web, mobile, and AI solutions across sectors, fostering impactful, scalable digital experiences with long-term client partnerships.”

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