Leadership Consultants and Executive Coaching Firms: 15 Compared

AIIR's published case describes a program for 25 high-potential vice presidents at a global property insurer approaching its 200th anniversary. Four week-long sessions in the US, Singapore and Germany were combined with five one-to-one coaching sessions per participant, and AIIR reports that 90% improved in self-management, leadership brand and performance. The client is unnamed. The case was published in August 2025, and the page says the program won a 2026 Brandon Hall Gold award.

AIIR's executive coaching (opens in a new tab) page publishes three programs with their lengths: an assessment and feedback process of three to four months, assessment plus coaching over six to nine months, and a 12-month coaching program for senior leaders and C-suite executives. The firm also offers executive team coaching and leadership development. It says its coaches have advanced education and professional certifications, including credentials from the International Coaching Federation.

Securitas built Accelerate with CCL: a six-month leadership development journey for three cohorts of 24 area vice presidents, with 360-degree assessments, sessions with the company's executive team and executive coaches. Antonia Elliott, Securitas' vice president of talent development, says CCL's programs are "steeped in research", and that Securitas decided to make the program mandatory for the majority of its field-facing leadership teams.

Its Leadership Development Program (opens in a new tab), for experienced leaders, mid-level managers and directors, is a five-day intensive within a five-month journey, in person or live online. CCL says tuition rises on January 1, 2027. It also builds custom programs and offers coaching (opens in a new tab); its coaches all hold ICF, CCE or EMCC certification and more than 200 hours of accredited coach training, it says. Its site describes CCL as trusted by two-thirds of the Fortune 1000.

GE HealthCare, with more than 50,000 employees, built a leadership framework and core development programs with DDI after its spin-off, and DDI reports that more than 650 leaders completed the program in its first year. Dr. Todd Harrison, GE HealthCare's VP of Global Leadership Academies, calls DDI "the first company I have worked with that took a business-minded approach to leadership development." DDI reports that more than 98% of the program's graduates say they plan to apply the skills on the job.

DDI describes itself as a leadership development and assessment company. Its leadership development page (opens in a new tab) covers programs for leaders from first-time managers to senior executives, in several formats.

Parney Albright, who was president and CEO of HRL Laboratories until July 2024, says on ELC's homepage that its approach has been "very effective in meeting the broad spectrum of coaching needs of many of our leaders and executives." The homepage also carries testimonials from a Walt Disney Company human resources vice president and from Nestlé USA, among others. Its structured data shows a last update in November 2023.

ELC's executive coaching (opens in a new tab) starts with an assessment and sets goals within its Red Thread Leadership model, which links strategy and culture. It also offers leadership development, team alignment, strategic planning and organization design.

Dr. Deb Dihel, identified on Navalent's success stories page as vice president of innovation at Lamb Weston, says Navalent provided executive coaching as she began a senior leadership position. Steve Hartman, former president of Windsor Stores, says its integrated approach "transformed my ability to lead at the enterprise level." Other named testimonials come from executives formerly at Land O'Lakes and Shinola. Navalent's coaching page also summarizes a case in which its coaching supported a director's rise to CEO of a $4 billion company, though the page links to no further detail. Its executive coaching page (opens in a new tab) reports 700 leaders and C-suite executives coached.

Navalent pairs leadership development consulting (opens in a new tab) and coaching with organization design, strategy and change work. It says clients work only with seasoned executives who have led organizations themselves, and it offers a free 15-minute leadership development assessment.

James Gandre, president of the Manhattan School of Music, credits Aspen with preparing and facilitating a retreat of college presidents. Christopher Street, vice president of development at All Stars Project, says his team became more effective at closing more and larger gifts as a result of "our strategic work with ALG." Both testimonials are on its leadership consulting page, last updated in October 2024 according to the page's structured data.

Aspen's consulting is for nonprofit and advancement leaders: thought partnership for C-suite leaders, including a new leader's first 6 to 12 months, executive coaching and onboarding for new chief development officers, and talent management. It says its coaches have all served in multiple C-suite roles. Its clients page (opens in a new tab) lists nonprofits in education, arts and culture, health care and community services.

Boyden's June 2026 case starts when a private equity firm acquired a document management outsourcing business with more than 8,000 employees. Boyden built a leadership competency model with the new investors and assessed the global CEO and 10 executive board members against it. The client is unnamed. Another 2026 case describes an HR executive search that grew into an ongoing leadership consulting engagement.

Boyden's leadership consulting combines onboarding and integration, assessment and profiling, leadership development, executive and team coaching (opens in a new tab) and succession planning, beside its executive search and interim management.

DHR's leadership consulting covers individual consulting (opens in a new tab) (executive assessment, executive coaching and identifying high-potential early- and mid-career leaders), team effectiveness (opens in a new tab) and board advisory, and uses its own Leader Lens executive assessment. The service page says DHR has conducted "numerous executive engagements for Fortune 500 companies and leading investors over the past decade" but names no client or case for this work on the pages read.

Egon Zehnder says its coaching goes beyond gaps in skills or knowledge to "examine gaps in identity and mindset", with ongoing support linked to specific business outcomes. The coaching page names no client or case.

A February 2026 Heidrick article describes coaching the 12-member top team of a heavy-industrial company: an assessment of each member, then two years of individual coaching; most participants extended their coaching beyond the initial period. It reports that 360-degree feedback showed most leaders improving, and that one executive was running a major business unit three years later. Two executives switched coaches early because the chemistry was wrong. The company is unnamed.

Heidrick offers executive, top-team and group coaching and trains leaders to coach their own teams. It says many of its coaches are former C-suite or functional leaders, and that more than 1,300 coaches have graduated from its ICF-accredited programs.

Mike McCallister, former chairman and CEO of Humana, says N2Growth's guidance during Humana's CEO succession "was of great value." Other named testimonials on its leadership development page come from the CEO of Maghreb Industries, about a leadership workshop, and from BMCI, part of the BNP Paribas group, about a leadership development program.

N2Growth offers executive coaching for boards, CEOs and C-suite leaders, executive assessments, a two-phase Top Team Effectiveness program and leadership development programs, alongside its executive search.

Spencer Stuart's leadership consulting covers executive development and coaching, CEO succession planning, CEO and senior executive onboarding, top team effectiveness, mergers and acquisitions, and culture alignment. It uses its own assessments, including Executive Intelligence and a Leadership Capability Assessment. The pages read name no client or case for this work.

Alpha Apex Group's executive team development page reports that in recent projects, employee engagement scores rose by as much as 25% and leadership-level turnover fell by 15% to 20% within a year, especially when team development was paired with focused work on company culture. It names no clients and gives no project count or baseline.

The work combines one-to-one executive coaching with peer mentoring inside the team and agreement on decision rights and escalation, with a first snapshot for the CEO in 30 to 60 days. Alpha Apex Group is also an executive search firm; this work sits in its people and culture consulting practice. Its leadership alignment page (opens in a new tab) adds leadership development and coaching, and a leadership remediation (opens in a new tab) service deals with underperformance and damaged trust.

BDO's May 2026 health system case describes an executive leadership team that received assessments, 360-degree feedback and facilitated offsite sessions. Two years after the first assessment, BDO reports, the team recorded a more than 30-point increase in transparency, accountability, alignment and collaboration. The health system is unnamed.

Blue Beyond Consulting joined BDO USA in March 2025, and its leadership work now sits in BDO's people strategy practice. The leadership development page covers leaders' and managers' mindsets, behaviors and tools under its Deep Trust and High Expectations approach.

BCG's leadership development page describes a capability program for 6,000 frontline leaders across 60 locations. It also describes a North American retailer whose store transformation combined leadership development with changes to roles and communication; BCG reports that employee engagement more than doubled and market share rose more than 200 basis points in a year. Both clients are unnamed.

BCG's executive coaches are former C-suite executives, it says. Typical one-to-one and leadership team coaching engagements last six months and run alongside a wider change effort.