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Efficiency Pays.

Always Has. Always Will.

Legence Strengthens Sustainability Leadership with Acquisition of Corporate Sustainability Strategies (CSS)

WE ARE NOW

RE TECH ADVISORS

We are excited to announce that Corporate Sustainability Strategies (CSS) has recently become a part of Legence, a provider of energy efficiency and sustainability solutions for the built environment. Joining the Legence family of more than 5,000 team members will expand our capabilities to continue to deliver impactful, high-performance business case outcomes across the real estate sector. CSS has now merged with Legence’ s award-winning RE Tech Advisors, a sustainability advisory firm based in McLean, VA.

As of September 15, 2024, this website will be disabled, but I encourage you to visit www.retechadvisors.com and follow us on LinkedIn and X.

Thank you for your steadfast support. I look forward to continuing our relationship.

Brenna S. Walraven

OUR BUSINESS CASE APPROACH

Corporate Sustainability Strategies (CSS) provides expert sustainability strategy development and execution plans that enable clients to improve financial and ESG performance. We help organizations not only manage costs but also drive higher performing operations, increase profitability, and gain a competitive advantage by integrating sustainability and ESG aspects into the overall business. CSS helps firms deliver on the business case with real results.

CSS’ clients represent national multi-sector real estate, with approximately $284 Billion in Assets Under Management (AuM). Clients have achieved 28 ENERGY STAR Partner of the Year awards, several GRESB Sector Leaders (number 1 ranking) and many having recurring, year-over-year improvements and success. CSS’ corporate clients benefit from our unique background of 28 years of real estate experience, business case thought leadership, and executive experience in driving a unique four-step process that can be tailored to drive meaningful results.

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lower costs

high performance operations

increase profits

gain competitive advantage

LEADERSHIP

Brenna S. Walraven

BOMA Fellow, BOMI-HP, CPM, RPA

Executive Strategic Advisor, RE Tech Advisors

Brenna Walraven is an internationally recognized leader in the commercial real estate and sustainability industry. She has excelled at leading large, diverse real estate organizations, having served some of the most discriminating institutional investors, with a proven track record in helping clients develop and implement business-case-focused environmental, social, governance, and resilience (ESG+R) strategies.

After almost 30 years in commercial real estate leadership, including nearly 17 years with USAA Real Estate (now Affinius Capital) and 10 years leading her own consulting firm, Corporate Sustainability Strategies (CSS), Ms. Walraven sold CSS to Legence, a Blackstone portfolio company, and merged with RE Tech Advisors, where Ms. Walraven serves as Executive Strategic Advisor. Ms. Walraven is active with Building Owners and Managers Association (BOMA) International, having served as Chairman and Chief Elected Officer.

She partnered with BOMA International and Clinton Climate Initiative to develop the BOMA Energy Performance Contract (BEPC) model toolkit and was founding chair in the development the BOMA Energy Efficiency Program (BEEP), which has provided efficiency training to over 36,000 individuals. She served on the Real Estate Roundtable board of directors and has served on the Sustainability Policy Advisory Council since 2000. She also served on California Governor Arnold Schwarzenegger’s Real Estate Leadership Council and has testified before the United States Congress on energy efficiency and sustainability.

Ms. Walraven holds a B.A. in Economics and MBA, with an emphasis in finance and real estate, both from the University of Southern California.

NEWS & EVENTS

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OUR COMMITMENT TO THE INDUSTRY

We proudly support the following industry organizations.

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