Best AI Agent Development Agencies

Tensorway vs OpenKit: full comparison for 2026

Last updated: August 2026

Quick verdict

Tensorway (4.5/5) edges ahead of OpenKit (3.9/5) overall. Tensorway is the better choice for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history.. OpenKit is the stronger option for uK SMEs wanting a genuinely tiny, security-certified agency for a well-scoped AI agent or RAG project.. The right choice depends on your project size, budget, and required tech stack.

Tensorway vs OpenKit: head-to-head summary

Criterion Tensorway OpenKit
Founded 2019 2019
HQ Alicante, Spain Durham, UK
Team size 50–249 2–10
Rating 4.5 / 5 3.9 / 5
Best for Smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history. UK SMEs wanting a genuinely tiny, security-certified agency for a well-scoped AI agent or RAG project.
Pricing model Fixed project, dedicated team, retainer, time & materials, plus a discovery-first exploratory option Fixed project, staff augmentation
Min. engagement $10K (per company website; independently unverifiable) Not published
Primary tech stack Python, TypeScript, LangChain Python, LangChain, AWS
Industries served Healthcare, Financial Services, Retail & E-commerce, Manufacturing Healthcare, Financial Services, Manufacturing

Tensorway vs OpenKit: overview

Tensorway

Tensorway is the AI-focused unit of an established Alicante, Spain software development company with roughly 25 years in the market, spun out specifically to build agentic systems at a team size (50–249 people) closer to an agency than a global systems integrator. Its six-phase delivery methodology takes a client from assessment to a working agentic MVP in roughly a month, with compliance embedded rather than bolted on, and a discovery-first exploratory track lets smaller buyers de-risk before committing to a full engagement. That agency-scale headcount, paired with a decades-old parent company, is an unusual combination on this list.

OpenKit

OpenKit is a UK-based AI and software development agency founded in 2019, headquartered in Durham with additional presence in London and Cambridge, and a very small team of just 2–10 people. Despite its size, it holds ISO 27001 and ISO 9001 certifications and is Cyber Essentials certified — independently verifiable security credentials unusual for a micro-agency, serving legal, healthcare, education, financial services, and manufacturing SMEs and mid-market businesses across the UK.

Services and capabilities: Tensorway vs OpenKit

Capability Tensorway OpenKit
Multi-agent orchestration
RAG / knowledge integration
Workflow & systems integration
Coding agents
Monitoring & anomaly detection
Customer-facing agents

Tech stack comparison: Tensorway vs OpenKit

Framework / platform Tensorway OpenKit
LangChain
LangGraph N/A
AutoGen N/A
LlamaIndex N/A
OpenAI N/A N/A
Anthropic Claude N/A N/A
Pinecone N/A N/A
AWS
Azure N/A
Kubernetes N/A N/A

Pricing comparison: Tensorway vs OpenKit

Criterion Tensorway OpenKit
Minimum engagement $10K (per company website; independently unverifiable) Not published
Engagement models Fixed project, Dedicated team, Retainer, Time & materials, Discovery-first Fixed project, Staff augmentation
Rate transparency Minimum disclosed Minimum disclosed
Price tier Accessible Mid-market

Target audience comparison: Tensorway vs OpenKit

Dimension Tensorway OpenKit
Best company size Startup to mid-market Startup to mid-market
Best industries Healthcare, Financial Services, Retail & E-commerce Healthcare, Financial Services, Manufacturing
Best use cases Smaller buyers wanting an agency-sized team with unusually deep institutional backing, Discovery-first evaluations before committing budget to a full agentic AI build UK SMEs wanting a certified, security-conscious micro-agency for a single well-scoped project, Legal or healthcare clients needing ISO-certified AI development at small-agency cost
Typical project type Fixed project Fixed project

Tensorway vs OpenKit: pros and cons

Tensorway
+ Discovery-first option lets smaller buyers de-risk before committing to a full engagement
+ Compliance (GDPR, HIPAA, ISO 27001) embedded as a named phase in the delivery methodology
+ Six-phase methodology reaches a working MVP in roughly a month
+ Backed by a parent company with two-plus decades of software delivery history — rare for an agency-sized team
- Team size (50–249, shared across the parent company's broader practice) still caps very large concurrent programs
- Published case studies are a short list, so depth outside those verticals is less proven
- Minimum engagement and project-count figures are sourced from the company's own site and independently unverifiable
OpenKit
+ ISO 27001, ISO 9001, and Cyber Essentials certifications are independently verifiable, unusual for its tiny size
+ Genuinely micro-agency scale (2–10 people) means direct founder-level access on every engagement
+ Serves regulated SME sectors (legal, healthcare, financial services) requiring real security rigor
+ UK-based with London and Cambridge presence alongside its Durham headquarters
- Extremely small team (2–10 people) caps capacity to one or two concurrent engagements at most
- Minimum engagement figures are not published, requiring direct sales contact for early budgeting
- Founded relatively recently (2019), giving it a shorter track record than most agencies on this list

Who should choose Tensorway?

Tensorway is the right choice for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history..

An agency-scale (50–249 person) team combined with a parent company's two-plus-decade delivery track record — unusual for this size bracket.. Minimum engagement starts at $10K (per company website; independently unverifiable). Works best with clients in Healthcare, Financial Services, Retail & E-commerce, Manufacturing.

Who should choose OpenKit?

OpenKit is the right choice for uK SMEs wanting a genuinely tiny, security-certified agency for a well-scoped AI agent or RAG project..

ISO 27001, ISO 9001, and Cyber Essentials certifications at a 2–10 person micro-agency scale — unusual security rigor for its size.. Minimum engagement starts at Not published. Works best with clients in Healthcare, Financial Services, Manufacturing.

Decision matrix: Tensorway vs OpenKit

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Tensorway
You need a large dedicated team for an ongoing programme Tensorway
Your budget is at the lower end Compare: Tensorway ($10K (per company website; independently unverifiable)) vs OpenKit (Not published)
You need specialist depth in a specific vertical Tensorway
You need staff augmentation or team extension Neither; consider alternatives that offer staff aug
You need consulting before committing to a build Both may offer discovery engagements

Use case fit: Tensorway vs OpenKit

Use case Tensorway fit OpenKit fit Winner
Smaller buyers wanting an agency-sized team with unusually deep institutional backing Strong Limited Tensorway
Discovery-first evaluations before committing budget to a full agentic AI build Strong Limited Tensorway
UK SMEs wanting a certified, security-conscious micro-agency for a single well-scoped project Limited Strong OpenKit
Legal or healthcare clients needing ISO-certified AI development at small-agency cost Limited Strong OpenKit
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Limited Both equally

Verdict: Tensorway vs OpenKit

Tensorway (4.5/5) is the stronger overall choice for most AI Agent Development projects. An agency-scale (50–249 person) team combined with a parent company's two-plus-decade delivery track record — unusual for this size bracket.. It is best for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history..

OpenKit (3.9/5) is the better choice when uK SMEs wanting a genuinely tiny, security-certified agency for a well-scoped AI agent or RAG project.. If your situation matches those criteria, OpenKit is a competitive option.

Related comparisons

Tensorway vs OpenKit FAQ

Is Tensorway better than OpenKit?

Tensorway (4.5/5) scores higher overall, but "better" depends on your use case. Tensorway is better for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history.. OpenKit is better for uK SMEs wanting a genuinely tiny, security-certified agency for a well-scoped AI agent or RAG project..

How do Tensorway and OpenKit differ in pricing?

Tensorway uses fixed project, dedicated team, retainer, time & materials, plus a discovery-first exploratory option pricing with a minimum engagement of $10K (per company website; independently unverifiable). OpenKit uses fixed project, staff augmentation pricing with a minimum engagement of Not published. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Tensorway or OpenKit?

Tensorway is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each agency before shortlisting.

What are the main differences between Tensorway and OpenKit?

Tensorway's primary differentiator is: an agency-scale (50–249 person) team combined with a parent company's two-plus-decade delivery track record — unusual for this size bracket.. OpenKit's primary differentiator is: iso 27001, iso 9001, and cyber essentials certifications at a 2–10 person micro-agency scale — unusual security rigor for its size.. They also differ in team size (50–249 vs 2–10), minimum engagement ($10K (per company website; independently unverifiable) vs Not published), and primary industries served (Healthcare, Financial Services vs Healthcare, Financial Services).

Last reviewed: August 2026. Verify all details directly with each agency before making a decision.