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Notable Founder

Alistair Pullen

Building Cosine AI as Founder & CEO

Last updated: April 2026

Founder & CEO🇬🇧 UKAge 31
Cosine AISeed

Awaira Score

Net Worth

estimated

Total Funding

$6M

Cosine AI

Age

31

years old

Leadership Profile

Alistair Pullen serves as Founder & CEO at Cosine AI, operating out of UK at age 31. Cosine AI has raised $6M in total capital and currently sits at the Seed stage. Awaira tracks Alistair Pullen's profile as part of its comprehensive AI founder intelligence database.

Career Highlights

  • Founder & CEO at Cosine AI
  • Seed stage company in AI Dev Tools
  • $6M in total funding raised
  • Based in 🇬🇧 UK

Founder Score Breakdown

Awaira Founder Score

62/100

Notable Tier

Top 38% of tracked founders

0Average: 50100

Alistair Pullen holds a notable position among AI founders. This above-average score reflects solid company performance, meaningful funding traction, and growing market presence.

Key Numbers

Awaira Score

62

Age

31

Total Funding

$6M

Employees

20

About Alistair Pullen

Alistair Pullen is a British entrepreneur and the founder and CEO of Cosine AI, an AI development tools platform. Based in the UK, he leads the company through its early stage of growth, having raised $6 million in seed funding to support the development of developer-focused AI solutions.

Pullen's background reflects a focus on technology and software development, though detailed information about his educational credentials and prior professional roles remains limited in public sources. His career trajectory has centered on identifying opportunities within the AI and developer tools space, ultimately leading to the founding of Cosine AI.

Cosine AI operates within the competitive AI dev tools category, positioning itself to address needs within the artificial intelligence development community. The platform reflects Pullen's focus on creating practical solutions for developers working with AI systems. Since founding the company, Pullen has demonstrated the ability to attract early-stage venture capital, establishing Cosine AI as part of a growing ecosystem of tools designed to streamline AI development workflows.

The company's seed stage positioning and successful fundraising indicate Pullen's credibility with investors in the AI infrastructure space. Cosine AI's development as a dev tools platform represents his contribution to the broader infrastructure layer supporting AI adoption and implementation.

Career Context

Alistair Pullen is 31 — right in the sweet spot where founders tend to build their biggest companies. Under their leadership, Cosine AI has raised $6M. The company has grown to about 20 people. Founded in 2022, the company is 4 years in and hitting its stride.

At a Glance

Alistair Pullen — Founder & CEO, 31 years old, based in UK.

💼

Role

Founder & CEO

🏢

Company

Cosine AI

📅

Company Founded

2022

🚀

Stage

Seed

🌍

Based In

🇬🇧 UK

🏷️

Sector

AI Dev Tools

👥

Team Size

20

Cosine AI — Company Profile

C

Cosine AI

🇬🇧AI Dev ToolsSeedEst. 2022

48

score

Cosine AI is a UK-based artificial intelligence development tools company founded in 2022, operating at seed stage with $6M in total funding and a valuation not disclosed. The company focuses on providing software infrastructure and tooling for AI development, targeting engineers and teams building with large language models and machine learning systems. Cosine AI addresses the operational challenges developers face when working with AI models, offering solutions that span model deployment, integration, and management across different environments. The platform enables users to streamline workflows in AI application development, reducing friction in taking models from experimentation to production. Operating within the competitive AI developer tools ecosystem, Cosine AI positions itself alongside other infrastructure providers serving the rapidly expanding AI development community. The company emerged during the accelerated adoption of transformer-based models and generative AI capabilities. As a seed-stage company with relatively early funding, Cosine AI is in growth phase, building its user base among AI practitioners and development teams. The specific customer roster remains largely undisclosed, though the company targets organizations actively developing AI-powered products and services. The company's trajectory reflects broader market expansion in AI tooling, as enterprises seek specialized solutions for AI development operations and workflow optimization. Cosine AI provides developer infrastructure for AI application deployment and management during a period of explosive growth in LLM-based software development.

Total Funding

$6M

Employees

20

View full company profile

Alistair Pullen — Frequently Asked Questions

Who is Alistair Pullen?
Alistair Pullen is the Founder & CEO behind Cosine AI, operating out of UK. Alistair Pullen is a British entrepreneur and the founder and CEO of Cosine AI, an AI development tools platform.
What is Alistair Pullen's net worth?
There is no reliable public estimate for Alistair Pullen's net worth. As Founder & CEO at Cosine AI, most of their wealth is locked in private equity — making it nearly impossible to verify from the outside.
What company did Alistair Pullen found?
Alistair Pullen is the founder of Cosine AI, established in 2022. Operating in AI Dev Tools, the company is based in United Kingdom and has raised $6M across its funding history. Cosine AI is currently at the Seed stage.
How old is Alistair Pullen?
Alistair Pullen is currently 31. As Founder & CEO at Cosine AI (UK), Alistair Pullen represents the next generation of AI company builders.
Where is Alistair Pullen from?
Operating from UK 🇬🇧, Alistair Pullen leads Cosine AI, which is headquartered in United Kingdom. UK has become an increasingly important hub for AI talent and investment.
What is Alistair Pullen's Awaira Score?
With an Awaira Score of 62/100, Alistair Pullen ranks among notable AI founders worldwide. The score synthesizes five key factors: company valuation, funding raised, growth stage, team size, and market influence across the AI sector.
How much has Cosine AI raised?
Cosine AI has raised $6M in total funding, reaching the Seed stage. The full funding timeline and investor breakdown are available on Cosine AI's Awaira profile.
Is Alistair Pullen on Twitter or X?
Alistair Pullen can be found on X at https://x.com/alistairpullen. They use the platform to discuss Cosine AI's progress, AI trends, and the broader technology ecosystem.
What is Cosine AI valued at?
Cosine AI's valuation has not been publicly disclosed. Many AI companies remain private and do not share valuation data until a major funding round or IPO.
Who are Alistair Pullen's co-founders?
Co-founder information for Alistair Pullen is not currently available on Awaira. Cosine AI may have been founded solo or co-founder data is being updated.

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