CITADEL CONSULTING SERVICES LIMITED

What CITADEL CONSULTING SERVICES LIMITED does

Citadel Consulting Services Limited is a UK-based, privately-held consulting firm headquartered in London that specialises in the Scaled Agile Framework (SAFe) and provides enterprise Agile transformation services. Founded in 2005 by Ryan Evans — a former nuclear physicist turned solutions architect and SAFe practitioner — the firm operates as a solo consultancy delivering Scrum Master, Release Train Engineer (RTE), Solution Train Engineer (STE) and Implementing SAFe (SPC) advisory services. Its core competency is the human-led facilitation and coaching of large, distributed Agile Release Trains, including PI Planning, Inspect & Adapt, system demo orchestration, and cross-ART coordination across multiple time zones.

The service portfolio is methodologically focused rather than technology-product focused: there is no proprietary software platform, API, or digital product; instead, the offering is professional services delivered through certified expertise (SPC 5.0, RTE 5.0, Leading SAFe 4.0, SASM 4.0, Certified Scrum Master/Professional/Product Owner). Citadel has delivered engagements for a roster of enterprise and public-sector clients including Maersk (Cyber Security ARTs), Discover Financial Services, Three (telecommunications), Ferring Pharmaceuticals, GSK, the UK Insolvency Service and Sellafield Ltd, spanning regulated and complex multi-team environments across the UK, US, Europe and India.

The business model is direct, sales-led, relationship-driven professional services: Ryan Evans personally engages client leadership to scope engagements, delivers training and coaching, and bills on a project/consulting-hours basis with quote-based pricing. There is no external funding, no employed headcount beyond the founder, no marketing function beyond a LinkedIn profile and a basic website, and no disclosed pricing. Revenue is generated almost entirely from a small number of large enterprise engagements per year, placing Citadel in the category of a lifestyle/boutique consultancy rather than a scaling firm.

Name

CITADEL CONSULTING SERVICES LIMITED

Legal name

Citadel Consulting Services Limited

Website

https://citadelconsultingserviceslimited.com

Company type

Private

Founded year

2005

Operating status

Operating

Short description

Citadel Consulting Services Limited is a UK-based solo consulting firm founded in 2005 that provides SAFe (Scaled Agile Framework), RTE/STE, and Scrum Master services to enterprise clients undergoing Agile transformation, delivered personally by founder Ryan Evans.

Ownership category

akta.pro rank

Product category

Agile Consulting Services

NAICS

Administrative Management and General Management Consulting Services (541611), Management Consulting Services (54161)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Operations & Process Improvement Consulting (BPAHACAB)

akta.pro secondary industry

Strategy & Corporate Development Consulting (BPAHACAA)

Keywords

• Agile consulting
• SAFe transformation
• Scrum Master
• Release Train Engineer
• Agile coaching

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel

Revenue model

1. Consulting Services: Professional consulting engagements providing SAFe implementation, RTE/STE services, and Scrum Master support. Revenue generated through billable consulting hours and project-based engagements with enterprise clients undergoing Agile transformation.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Citadel Consulting Services Limited provides SAFe (Scaled Agile Framework) consulting, transformation support, and Scrum-based delivery management services. Engagements typically include serving as Release Train Engineer (RTE) or Solution Train Engineer (STE) for Agile Release Trains, Scrum Master roles, and SPC-led SAFe implementation advisory for enterprises transitioning from traditional methodologies to Agile at scale.

Product overview

Citadel Consulting Services Limited is a consulting firm that provides a unified suite of SAFe (Scaled Agile Framework) implementation services. The core offerings include Scrum Master Services, Release Train Engineer (RTE) and Solution Train Engineer (STE) engagements, and Implementing SAFe (SPC) advisory services. Additionally, the firm offers SAFe Training and Coaching for certifications and Agile Transformation Consulting to guide organisations through their agile journey. These services work together to help companies achieve incremental delivery of high value, quality and prioritised work through agile at scale.

Differentiator

Problem solved

Functional benefit

Products and services

• Scrum Master Services Work with new or mature teams to enable them to self-organise and deliver predictable incremental value. Provided to enterprise and government clients undertaking Agile transformation.
• Release Train Engineer (RTE) Services Citadel serves as the RTE for an Agile Release Train (ART) with collocated or distributed teams, facilitating PI events, removing impediments, and ensuring successful PI execution.
• Solution Train Engineer (STE) Services Citadel serves as the STE across several Agile Release Trains (ARTs), coordinating large solution-level planning and execution across multiple ARTs.
• Implementing SAFe (SPC) Advisory Citadel advises organisations on how to transform to a Lean Agile enterprise, focusing on incremental delivery of high-value, quality, and prioritised work, leveraging Certified Program Consultant (SPC) 5.0 credentials.
• SAFe Training and Coaching Training programs covering SAFe, Scrum Master, and related certifications, combined with coaching to help organisations achieve Agile transformation at scale.
• Agile Transformation Consulting Citadel guides organisations through the transition from traditional methodologies to the Scaled Agile Framework, including assessment, planning, and implementation support across enterprise engagements.

Named customers7 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Tenthpin Management ConsultantsminorStrategic or Co-development PartnerPartnered with Tenthpin Management Consultants on Ferring pharmaceutical transformation project. Tenthpin is a management consulting firm engaged to help Ferring transition from legacy operations to SAP S/4HANA. Citadel provided RTE services as part of the larger consulting engagement.

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Scaled Agile: The inventor and certifying body of the Scaled Agile Framework — a broad incumbent that trains and certifies SPCs/RTEs (which Citadel holds) and drives the SAFe consulting ecosystem Citadel participates in.
• Accenture: Global management consulting and SI with extensive Agile transformation practices — competes for the same enterprise transformation budgets at substantially greater scale.
• Deloitte: Big Four consultancy with large Human Capital and Enterprise Transformation practices — competes for enterprise Agile-at-scale mandates at the larger end of Citadel's addressable market.

Emerging players

• Valiant: Digital and Agile transformation consultancy offering SAFe-aligned delivery services to enterprise clients — comparable target customers and engagement types but a newer, scaling team.

Direct peers

• Scrum Inc. Scrum and Agile transformation firm founded by Jeff Sutherland — directly comparable training and enterprise coaching services, particularly in Scrum Master and product ownership certifications.
• Mountain Goat Software: Scrum training and coaching firm led by Mike Cohn — comparable in delivering Scrum Master, Product Owner, and Agile certifications, with similar practitioner-led delivery style.
• Velocity Partners: Scaled Agile and software delivery consultancy with enterprise transformation services — overlapping RTE/STE offerings and similar mid-market positioning to Citadel.
• Agile42: Specialist SAFe and enterprise Agile coaching consultancy serving global clients — closely comparable to Citadel's RTE/STE/SPC focus but with broader geographic reach and larger consultant bench.
• cPrime: Full-service Agile and SAFe consulting and training firm offering SPC, RTE, and enterprise transformation services — directly comparable to Citadel's delivery model at much larger scale.
• Lean Agile Training: SAFe-accredited training and consulting partner delivering enterprise Agile transformation and certification programmes — overlap with Citadel's certification and coaching portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CITADEL CONSULTING SERVICES LIMITED