We build enduring sustainability programs that help us all get closer to a net-zero future

CodeGreen is committed to people, profits, and the planet.

15 Years
in business
600 Million square feet in ESG data management
50+ ESG

We’re creating a fundamentally healthy and more sustainable built environment

CodeGreen’s expert team of real estate sustainability consultants works with investors, owners, operators, and tenants worldwide to develop, implement, and track comprehensive sustainability programs that improve operational efficiency, meet sustainability targets, and comply with healthy building certification, regulatory, and investor reporting requirements.

From strategy to execution

We offer a range of real estate sustainability consulting, from strategy and planning through building-level execution. Everything we do begins with a foundational understanding of how buildings operate.

A culture of innovation

We collaborate with the most successful real estate firms in the world, developing industry-leading sustainability programs that reduce operational expenses, minimize building carbon footprints, and drive the sustainable real estate industry forward.

Interdisciplinary expertise

Our holistic approach to sustainability leverages CodeGreen’s interdisciplinary team of sustainable real estate consultants and engineers to amplify the value we deliver to our clients.

Data-driven strategy and execution

CodeGreen’s ESG consulting and technical solutions are grounded in verified data on current and past performance so we can pinpoint measurable opportunities, and then implement plans to achieve them.

Our core values guide us every step of the way


For our team, this is more than just a job. It’s a calling, a commitment, and a dedication.


We build enduring solutions based on data, engineering, and sustainability expertise.


Every strategy and plan is carefully crafted so we deliver the results our clients demand.


Our focus is on building relationships based on understanding and respect with every client.


We’re not taking baby steps. We’re reducing the carbon footprint of the built environment.

Share our core values?

We frequently post ESG consulting jobs, renewable energy engineering jobs, data architecture and management designer jobs, and much more.

Join our team of ESG experts

Meet our sustainable real estate consulting team

Stephen Rizzo

Stephen Rizzo

Senior Director, Strategic Growth

Christopher Cayten

Mr. Cayten has more than 20 years of experience in sustainability consulting, architecture and development in commercial real estate in New York City and overseas. Mr. Cayten works with private and public sector leaders to improve the sustainability of the built environment while delivering positive value to building owners, occupiers and investors. Chris has extensive experience developing and implementing strategic energy-efficiency and sustainability programs for more than 300 million sf of commercial property around the country including many of the largest commercial portfolios in New York City and Washington, DC. Mr. Cayten has worked closely with the NYC Mayor’s Office since 2009 supporting their voluntary and mandatory energy-efficiency programs for new and existing buildings to help the city reach its ambitious 80% carbon reduction goal by 2050. Mr. Cayten has spoken domestically and internationally about sustainable real estate and energy efficiency policy. He sits on the Advisory Council to the New York City Climate Museum, Fitwel Advisory Council, and is an active member of Urban Green, and serves on the sustainability committees of BOMA-NY and REBNY.
Senior Director, Product Development

Joshua Kace

As the Senior Director of Product Development at CodeGreen, Josh works to channel the amazing creativity and subject-matter knowledge across the entire CodeGreen team to facilitate product development and process improvement. In an ever-changing industry, Josh ensures that CodeGreen stays ahead of the curve and is able to meet all our client’s critical needs as quickly as possible, sometimes before our clients know they need them!
Aaron Fuller
Director, Data & Business Intelligence

Aaron Fuller

Director, Sustainable Buildings

Hannah Bronfman

Director, Energy Management

Sofia Melo

After more than 7 years working with multifamily new construction projects pursuing green certifications and high energy savings, Sofia joined CodeGreen where she could apply her knowledge to existing and new construction commercial buildings, which are responsible for a significant portion of New York City’s carbon footprint. As the associate director in the Engineering Department, Sofia leads a team of exceptional energy engineers with the common goal of helping our buildings achieve their energy efficiency and carbon reduction goals.
Associate Director, Commissioning & Field Testing

Gaspar Cabrera

Senior Program Manager

Abdelrahman Salloum

Senior Energy Engineer

Alex Von Braun

Director, Operations and Culture

Alison Spencer

Energy Engineer

Aliza Bond-Levine

LEED Green Associate, ACP
Commissioning Engineer

Andrew Haley

Energy Engineer

Andrew Karlovich

Lead Product Manager, Salesforce

Angeline Liu

Senior Project Manager

Anna Packard

Senior Energy Engineer

Ben O’Donnell

Assistant Project Manager

Brigid Rooney

Senior Project Manager

Bryan Hadick

Project Manager

Charlotte Walker

Junior Engineer

Chathura Perera

Energy Reporting Analyst

Christine Tassone

Sustainability Analyst

Christopher Magnani

Junior Engineer

Cody Gaspard

Senior Business Intelligence Developer

Ekaterina Issaeva

Sustainability Analyst

Erin Moran

Benchmarking Analyst

Haley Tong

Project Manager

Jaida Holbrook

Energy Engineer

Jash Shah

Program Manager

Jorge Lopez Orendain

LEED AP, WELL AP, Fitwel Ambassador
Project Manager

Kali Rosendo

Sustainability Analyst

Luna Oiwa

Project Manager

Michael Coleman

LEED AP, Fitwel Ambassador
Sustainability & Data Analyst

Michael Kim

Project Manager

Michael Vucinovich

Assistant Project Manager

Miranda Rankin

Program Manager

Myles Scott

Project Manager

Nivedita Gopalakrishnan

Data Analyst

Oren Merberg

Associate Director, Programs

Pallavee Panchal


Riddhi Choksy

Data Manager

Roshani Giri

Energy Engineer

Sandhya Sapkota

Sustainability Analyst

Shruti Narkar

Sustainability Data Analyst

Subrina Rafiq

Project Manager

Taylor Bulow

Business Development Associate

Thomas Walsh

Data Analyst

Yansi Wu

Data Engineer

Yu Zhu

Associate Director, Product Development

Zhen Ren


Join our mission to create a net-zero-carbon built environment

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Sustainable real estate consulting for every aspect of the built environment — from the boiler room to the boardroom and beyond

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