LLM Development Companies
LLM developers build retrieval systems, fine-tuned models, evaluation harnesses and the serving infrastructure behind them. Compare vetted vendors, read client reviews and request quotes.
Popular Countries for LLM development
Our approach is simple – three dedicated people: a strategist, a designer, an engineer. Together, they are a nimble team focused on driving innovation and achieving velocity quickl…
- Min. project
- $30k+
- Portfolio
- 2
KnubiSoft is a software development company launched in 2012. Our expert team creates programs and web services running quietly and smoothly, helping clients manage their business,…
- Min. project
- $20k+
Over 10 years of work we have realized more than 70 projects for market leaders, startups and well-known niche companies. We develop products that are used by millions of people (a…
- Min. project
- $20k+
- Portfolio
- 13
Kabisa feels that creativity and flexibility are of utmost importance. We believe in user-friendliness, reliability and elegant software solutions. We are only satisfied if the cus…
- Portfolio
- 2
We are Ais Mobile Apps, A Software development company the world’s leading Technology Services provider, specialized in Artificial Intelligence, Machine Learning, Data Scienc…
With no signs of slowing down, Myriad Mobile is at the leading edge of developing mobile apps and web apps to meet the business challenges of big and small enterprises, and non-pro…
- Min. project
- $30k+
- Portfolio
- 2
Xeliumtech Solutions is a quality one-stop solutions company focused on mobile app development. Our aim is to provide the best mobile applications on various platforms in many lang…
TIQUM
A+Tiqum is a leading digital integrator offering development of IT services, integration of corporate solutions and automation of business processes based on business and system anal…
- Min. project
- $30k+
- Portfolio
- 33
- Reviews
- 1
AppsforAgri is a global IT company that works exclusively in the agriculture industry. We enable our customers to efficiently collaborate and exchange data and information with the…
- Min. project
- $10k+
- Portfolio
- 2
"Web-space" - IT-company accredited by the Ministry of Communications of the Russian Federation, specializing in custom web development, support and development of websites. We are…
- Min. project
- $3k+
- Portfolio
- 14
Our expertise: iOS and Android Applications Responsive Web Design Custom Web Applications Startups Incubator
- Min. project
- $10k+
HIVE
CULEI is a digital transformation agency. We implement corporate portals, corporate universities and CRM systems based on Bitrix24. For 14 years we have been helping businesses to i…
- Min. project
- $30k+
- Portfolio
- 1
Webex Technologies LLC specializes in website development. HTML5 , CSS3-Flex, Grid, Webex Technologies LLC specializes in website development. We use HTML5, CSS3-Flex, Grid, Parall…
- Min. project
- $100+
- Portfolio
- 3
Intelivita is a versatile Mobile App Development Company in the UK that focuses on Mobile and Game Development solutions. We are proficient in implementing concept-driven interacti…
- Min. project
- $30k+
- Portfolio
- 3
Based in New York, we are a unique blend of creative designers, tech savvy developers and awesome project managers. We don not just develop apps. We build dreams. Our team is young…
- Min. project
- $30k+
- Portfolio
- 3
We are a mobile application studio, built around a core team of seasoned marketers, serial entrepreneurs, veteran strategists and big idea lovers. We see mobile application develop…
- Min. project
- $30k+
- Portfolio
- 1
Advance.Azerbaijan is a full-cycle marketing strategy company for brand promotion and development. We work in three directions: marketing, creativity, technology. We create website…
- Min. project
- $3k+
- Portfolio
- 3
Mijn MKB App biedt ondernemers een betaalbare mobiele App. U heeft uw eigen mobiele App voor nog geen € 35,- per maand, zonder investeringskosten! Beheer uw nieuws en informat…
- Min. project
- $3k+
- Portfolio
- 1
Arck Interactive is a full-service web development agency specializing in custom web and mobile application development
- Min. project
- $30k+
- Portfolio
- 1
Cygnet Infotech is a trusted Global Technology Company with 17+ years of experience and strong 500+ people. We have successfully completed over 800 Projects for 300+ ISVs and Enter…
- Min. project
- $10k+
- Portfolio
- 3
The company specializes in the development of complex and highly loaded projects.
- Min. project
- $20k+
- Portfolio
- 3
Blue Label Labs is a 40-person mobile, tablet, watch, TV, IoT and AR/VR app design, development and marketing agency based in New York City and Seattle. Over the last 6 years, we h…
- Min. project
- $30k+
- Portfolio
- 1
Innovasium Digital is an experienced, award-winning digital agency and software development company. We make websites, apps, portals and print.
- Portfolio
- 1
Crystalnix delivered 50+ products for various industries so far. Our main focus is Mobility with Cloud that comprises an experience of our people, best agile practices, development…
- Min. project
- $30k+
- Portfolio
- 3
We are a group of highly talented scientists, mathematicians, engineers motivated by a deep appreciation for building elegant and functional applications that solve complex problem…
- Portfolio
- 3
Perfectial is a business-oriented full-cycle software development company committed to helping businesses kickstart, develop, and succeed. Perfectial has implemented innovative ide…
- Min. project
- $30k+
- Portfolio
- 5
Fraction tech PVT LTD is the worldwide service provider of unique UI/UX web, software, cloud and mobile application design & development services and solutions in India. Having gro…
- Min. project
- $30k+
- Min. project
- $30k+
We at Decondia stand for German quality standards in connection with Indian development expertise. As a customer, you benefit from the advantages of offshoring and have in addition…
We build apps for startups and enterprises which ensure scalability, robustness and top-notch user experiences. We have built more than 300+ web and mobile apps since 2011 for both…
- Min. project
- $20k+
- Portfolio
- 2
- Min. project
- $3k+
- Portfolio
- 2
Formatics ontwikkelt en onderhoudt software op maat. Daarbij zijn research, het creëren van nieuwe ontwikkelingen, prototyping, re-engineering en onderhoud onze hoofddiensten.…
- Min. project
- $10k+
- Portfolio
- 2
Before you shortlist anyone
All calculatorsThe short answer
1,179 LLM development companies are listed. 61% publish a minimum project budget; the median floor is $10k. Most work starts in the $3–10k range. Median published rate is $25/hr across 69 companies.
Best supplied: United States (182) · India (131) · Ukraine (59)
Recalculated 2026-10-20 from live profiles.
What it costs, by country
Each cell counts companies whose published minimum project budget falls in that band. Only countries with at least 5 listed companies appear.
| Country | under $3k | $3–10k | $10–20k | $20–30k | $30k+ | Median rate |
|---|---|---|---|---|---|---|
| United States182Widest choice | 4 | 28 | 23 | 16 | 55 | $35/hr |
| India131 | 1 | 22 | 13 | 13 | 19 | $18/hr |
| Ukraine59 | — | 14 | 5 | 10 | 4 | — |
| Germany31 | — | 2 | — | 5 | 1 | — |
| United Kingdom30 | — | 4 | 4 | 4 | 9 | — |
| Netherlands28 | — | 4 | 4 | 4 | 10 | — |
| Poland27 | — | 4 | 4 | 5 | 6 | — |
| Canada9 | 1 | — | — | — | 3 | — |
| Armenia9 | — | 3 | 2 | — | — | — |
| Australia8 | 1 | 1 | — | 3 | — | — |
| Romania7 | — | 2 | 1 | — | — | — |
| Israel5 | — | 2 | — | — | — | — |
How this table is built
- Figures are minimum project budgets companies publish on their own profiles — the floor below which they decline work, not the price of a finished project.
- USD only. Companies quote in six currencies and averaging across them produces a number nobody charges.
- Budgets outside $300–$2,000,000 and rates outside $5–$500/hr are dropped as data-entry errors.
- A country needs 5 listed companies for a row, and 5 published rates before a median rate is shown.
What will your budget reach?
Move the slider. Every figure below is a count of companies whose published minimum project budget sits at or under that amount.
240 of 719 companies (33%) take projects at this size.
Where the entry thresholds sit
- under $3k
- 21
- $3–10k
- 219
- $10–20k
- 163
- $20–30k
- 137
- $30k+
- 179
Goes furthest in United States — 32 companies
This says who will engage, not what your scope should cost. A budget that reaches most of the market still buys very different things depending on what you are building.
Who is focused, and who has proved it
Horizontal: how concentrated a company is on LLM development. Vertical: how much checkable evidence stands behind it. 60 of 1179 companies are plotted — the rest have fewer than 2 evidence signals, so placing them would be guesswork.
- Big Drop IncLeaders
- FueledLeaders
- The Digital EmbassyLeaders
- Vergani&GascoLeaders
- IntellectsoftLeaders
- moodleyLeaders
How a company is placed
- Focus is the inverse of how many categories a company claims, blended with the share of its portfolio tagged with this one. A firm listing three technologies is concentrated; a firm listing forty also appears here.
- Proven delivery adds published reviews (to 20), portfolio projects (to 25), Ahrefs Domain Rating (to 60) and years listed (to 10). Each is capped so no single signal carries a company to the top.
- Positions are relative to the other companies on this page: the median company sits at the centre of each axis, so a quadrant boundary means "ahead of half the companies listed here". Raw scores are in each bubble's tooltip.
- Deliberately excluded: the star rating, which sits in too narrow a band to separate anyone; the editorial rank, which is a hand-assigned sort weight; and paid verification, which does not move anything on this chart.
- Leaders:
- Concentrated on this work and with the record to show for it.
- Specialists:
- This is most of what they do, but the public evidence is still thin.
- Established generalists:
- A substantial track record, spread across many categories.
- Emerging:
- Building both focus and evidence.
Customer Reviews about LLM development
Anadea
WeTarget
Real professionals! Absolutely recommend WeTarget Agency.
Futuro Studio
Great team!
What an LLM engagement covers
Most LLM work is retrieval, evaluation and serving rather than training. A typical engagement takes a corpus you already own, makes it searchable, wires a model over it, and then spends most of its time proving the answers are good enough to rely on.
- Retrieval (RAG). Chunking, embeddings, hybrid search, re-ranking and citation — the difference between a demo and a system people trust.
- Fine-tuning and adapters. LoRA and full fine-tunes for tone, format and narrow tasks, plus distillation to cut cost and latency once behaviour is stable.
- Evaluation. Golden sets, LLM-as-judge scoring, regression suites in CI and human review loops.
- Serving. Self-hosted inference with vLLM or TensorRT, model routing, caching, quantisation and autoscaling.
- Safety. Prompt-injection defences, PII redaction, output filtering and audit logging.
What to ask an LLM vendor
- How do you measure answer quality, and can I see the evaluation set?
- What is the cost per thousand queries at my volume, and what brings it down?
- How do you defend against prompt injection when the model reads untrusted documents?
- Can this run entirely inside my cloud account or on-premise, and what does that cost in quality?
- What happens when the provider deprecates the model version we launched on?
Portfolio Projects
Frequently Asked Questions
RAG or fine-tuning?
What does an LLM project cost?
Should we self-host an open-weights model?
How do you keep an LLM from leaking sensitive data?
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