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Top Large Language Model Development Companies in November, 2026

Large Language Models (LLMs) are sophisticated AI systems that can understand and generate human-like language. These models have become increasingly popular in recent years, as businesses across a wide range of industries seek to leverage their capabilities for various applications. However, finding top Large Language Model Development Companies can be a challenging task.

Thankfully, RightFirms can help you find the best Large Language Model Development Companies with ease. We have compiled below a comprehensive list of the top companies offering Large Language Model Development services, based on factors such as experience, reputation, portfolio, and customer reviews. This makes it easy for businesses to find and hire the right developers for their AI projects, without the hassle of conducting extensive research or vetting potential candidates.

How this list is built: This list is prepared using multiple trust and relevance signals, including profile completeness, service expertise, reviews and review freshness, external business signals, and selected signals reviewed by the RightFirms research team. We regularly review these signals and update our listings to help buyers discover credible and relevant partners. Learn more about our methodology

List of Large Language Model Development Companies | Hire Large Language Model Developer
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Instinctools
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Your AI-powered Engineering Partner

4.9★★★★★4.9 / 5(9 reviews)
Online
Employees251 to 1000
Avg. hourly rate$26 - $50 /hr
Focus AreaLarge Language Model
LocationUSA, Germany

Meet Instinctools - a global AI-powered software engineering company with over 25 years of experience. Read More About Instinctools

5.0Reviewed 2 weeks ago

“The team is responsive, approachable, and always willing to help”

Agne Angelides, Technical Project Manager at Radcliffe Group

Grow your business with AI

4.2★★★★★4.2 / 5
Employees2 to 10
Avg. hourly rate$51 - $100 /hr
Focus AreaLarge Language Model
LocationNetherlands

Crux Digits BV comprises a dynamic team of seasoned data scientists, engineers, and strategists passionate about harnessing data's power to drive impactful business outcomes. With extensive expertise in artificial intelligence and data engineering, we offer bespoke solutions tailored to meet each client's unique needs.Read More About Crux Digits B.V.

Protonshub Technologies
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Creating new dimensions

4.9★★★★★4.9 / 5(3 reviews)
Online
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaLarge Language Model
LocationIndia, USA

Protonshub is a custom software development company for new-age businesses. Our team works with organizations across the globe to design and deliver exceptional digital experiences.Read More About Protonshub Technologies

5.0

“Working with Protonshub Technologies was seamless; they delivered timely, high-quality”

Ravimohan Mishra, CEO & Co-Founder
Asktech
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

You ask we create

2.5★★★★★2.5 / 5(1 reviews)
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaLarge Language Model
LocationIndia, United Arab Emirates

At Asktech, we pride ourselves on our expertise in developing Enterprise Grade Software solutions that cater to millions of users. Our focus on fault tolerance ensures uninterrupted services even in challenging conditions. Additionally, we adhere to high-security standards, safeguarding sensitive data with cutting-edge measures. In the dynamic domains of FinTech, EdTech, and Manufacturing Automation, we pioneer innovative solutions.Read More About Asktech

1.0

“Worse Service Provider”

Lorenzo K Marak, Founder CEO

AI & Mobile App Development Company

3.9★★★★★3.9 / 5
Employees51 to 250
Avg. hourly rate$101 - $150 /hr
Focus AreaLarge Language Model
LocationUSA

IT Path Solutions is a leading IT services and solutions provider dedicated to helping businesses harness the power of technology to achieve their goals. Read More About IT Path Solutions

Forging tomorrow’s Experiences, today.

4.0★★★★★4.0 / 5
Employees2 to 10
Avg. hourly rate< $25 /hr
Focus AreaLarge Language Model
LocationIndia

Welcome to Idhyha Creatives & Technology, where creativity meets technology in the most interactive and fun way possible! We're a vibrant Creative & Tech agency dedicated to crafting highly engaging designs paired with in-depth UX research. At Idhyha Creatives & Technology, we understand the value of time in business, which is why we've revolutionized our process with ready-made kits infused with AI design.Read More About Idhyha Creatives and Technology

Best Software Development Company in South Korea

3.9★★★★★3.9 / 5
Employees251 to 1000
Avg. hourly rate< $25 /hr
Focus AreaLarge Language Model
LocationSouth Korea

We excel at creating digital-first experiences across industries that unlock on-demand scalability, higher security, and easier operating interfaces. Our efforts have resulted in multiple success stories for our clients.Read More About In Time Tec South Korea

Services Beyond Imagination

3.9★★★★★3.9 / 5
Employees11 to 50
Avg. hourly rate< $25 /hr
Focus AreaLarge Language Model
LocationPakistan

At 3Const, we are dedicated to charting the course for a technologically advanced future. Our commitment lies in pioneering innovations that transcend the present and pave the way for a dynamic tomorrow. With a relentless pursuit of excellence, we harness cutting-edge technologies to empower businesses, industries, and societies. Through strategic vision and a steadfast belief in the transformative power of technology, we propel our clients into the forefront of progress.Read More About 3Const

Engineering End-to-End Digital Solutions.

3.5★★★★★3.5 / 5
Employees51 to 250
Avg. hourly rate$101 - $150 /hr
Focus AreaLarge Language Model
LocationIndia

Verveo is a digital engineering and technology solutions company specializing in scalable web platforms, mobile applications, and AI-enabled systems. We design and deliver secure, high-performance solutions tailored to both B2B and B2C environments. Verveo has experience working across industries including FinTech and airport systems, where precision, reliability, and data integrity are critical.Read More About Verveo

The customer experience transformation partner

4.0★★★★★4.0 / 5
Employees10,000+
Avg. hourly rate$151 - $200 /hr
Focus AreaLarge Language Model
LocationUSA

TELUS Digital is the customer experience transformation partner to the world’s most admired brands. Our diverse team weaves data, technology and human ingenuity to deliver differentiated customer journeys, drive operational effectiveness and scale AI solutions with meaningful value and positive impact.Read More About TELUS Digital

AI & Custom Software Development Experts

4.2★★★★★4.2 / 5
Employees51 to 250
Avg. hourly rate$51 - $100 /hr
Focus AreaLarge Language Model
LocationPoland

We’re one of Europe’s most forward-thinking software development partners, supporting you from discovery and architecture through design, development, and long-term evolution. Whether you’re launching a new product, modernizing existing systems, or enhancing apps, we prioritize efficiency, scalability, measurable value. We create digital products that improve acquisition, engagement, and retention, driving higher ROI and customer lifetime value.Read More About TeaCode

Custom Software & Mobile App Development for Businesses and Startups

4.0★★★★★4.0 / 5(3 reviews)
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaLarge Language Model
LocationPortugal

Celadonsoft is a custom software development company helping startups and businesses build scalable web and mobile products. We deliver reliable development teams and full-cycle solutions focused on speed, quality, and measurable business results.Read More About Celadonsoft

4.9

“A True Development Partner — Deeply Invested in Our Success”

Hannah Syris, CEOVerified review

Veeva, AI, and data solutions for life sciences.

3.8★★★★★3.8 / 5
Employees11 to 50
Avg. hourly rate< $25 /hr
Focus AreaLarge Language Model
LocationUSA

IntuitionLabs is a Silicon Valley firm building AI software for pharma. Led by veteran Adrien Laurent, we bridge the gap between GenAI and regulations like FDA 21 CFR Part 11 and GxP. As a Veeva Vault CRM X Pages Partner, we offer Veeva Nitro integration, data engineering, and clinical chatbots. Our four step method (Assess, Train, Support, Measure) ensures compliant digital transformation and real time sales insights for leaders like Scilex.Read More About IntuitionLabs

Turning ideas into intelligent digital products

3.7★★★★★3.7 / 5
Employees11 to 50
Avg. hourly rate< $25 /hr
Focus AreaLarge Language Model
LocationIndia, USA

CodesClue is a leading IT consulting and software development company specializing in AI, ML, Cloud Computing, and IoT. We deliver innovative digital solutions to help businesses grow and succeed.Read More About CodesClue Technologies

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