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Alastair Green

Senior PartnerWashington DC

Alastair Green

Senior PartnerWashington DC

Serves private equity investors and infrastructure companies to help improve their performance with an emphasis on technological disruption

Alastair is the global leader of McKinsey’s Infrastructure Special Initiative and a senior leader of its Private Equity & Principal Investors Practice.

Alastair specializes in serving private equity and infrastructure investors and their portfolio companies on a broad range of topics spanning fund strategy, transactions, project development, and value-creation programs. In addition, he serves innovators and public institutions on investment and infrastructure topics, including how to effectively partner with private investors. Alastair’s expertise spans several sectors, given the breadth of his clients, and has worked extensively in the energy, travel and logistics, real estate, industrials, and technology sectors. He is a thought leader who helps his clients navigate the complex infrastructure landscape in light of rapidly changing policies and technology.

Some of his recent client work includes the following:

  • supporting multiple leading infrastructure investors in commercial and operational due diligence of dozens of new assets
  • guiding the creation of a growth strategy for a leading provider of microgrid solutions
  • helping a leading infrastructure project developer validate the business case, craft the bidding strategy, and design the project organizational structure for a multibillion Public-Private Partnership (P3)
  • assisting an infrastructure-focused engineering, procurement, and construction (EPC) firm with designing its organizational structure and strategic growth
  • helping create a full potential plan for multiple waste and environmental services businesses
  • developing a micro-market strategy with an urban mobility original equipment manufacturer (OEM)
  • supporting a transportation technology company in evaluating dozens of markets for organic and inorganic growth, resulting in three new acquisitions
  • assisting with the formation of a growth plan for a specialty waste operator in combination with a strategic merger
  • helping reduce network and operating costs for a large logistics provider to compete for new enterprise contracts
  • advising a battery manufacturer on effective ways to reduce its material costs by more than 20%
  • collaborating with an energy infrastructure investor to select the top 5% of potential investments for its mandate

In addition to his client commitments, Alastair serves on the board of Mengo Hospital Partners, a nonprofit focused on creating the leading children’s hospital in East Africa.

Prior to joining McKinsey, Alastair worked internationally for investment organizations and has experience working on infrastructure and investment-related engagements in the Americas, Asia, Europe, the Middle East, and sub-Saharan Africa.

Published work

McKinsey Global Private Markets Review 2024: Private markets in a slower era, McKinsey & Company, March 2024

Private markets: A slower era,” McKinsey & Company, February 2024

Ten considerations for private markets in 2024,” McKinsey & Company, January 2024

A new way to decarbonize buildings can lower emissions—profitably,” McKinsey & Company, November 2023

Logistics Disruptors: Motive’s Shoaib Makani on AI and automation,” McKinsey & Company, September 2022

Proposed climate rule signals new era for real estate,” McKinsey & Company, June 2022

Preparing for private-equity exits in the COVID-19 era,” McKinsey & Company, June 2020

Air-mobility solutions: What they’ll need to take off,” McKinsey & Company, February 2019

Private equity exits: Enabling the exit process to create significant value,” McKinsey & Company, July 2018

High stakes: How investors can manage risk in the new infrastructure environment,” McKinsey & Company, June 2018

Commercial drones are here: The future of unmanned aerial systems,” McKinsey & Company, December 2017

New horizons for infrastructure investing,” McKinsey & Company, August 2015

Making the most of a wealth of infrastructure finance,” McKinsey & Company, June 2015

Past Experience

International Finance Corporation


Harvard Law School
JD, commercial law

University of Cambridge
MPhil, economics

University of Pennsylvania
BS, economics
BA, international studies