Investing in Next-Generation Clean Energy and Climate Solutions Companies


Investing in Next-Generation Clean Energy and Climate Solutions Companies


Investing in Next-Generation Clean Energy and Climate Solutions Companies


Investing in Next-Generation Clean Energy and Climate Solutions Companies


Investing in Next-Generation Clean Energy and Climate Solutions Companies


Investing in Next-Generation Clean Energy and Climate Solutions Companies


Founded in 2001, Angeleno Group is a pioneer in providing growth capital for next generation clean energy and natural resources companies.AG invests opportunistically in a range of deal types, with a strategy that is sector-focused, stage-agnostic and research-driven. Since its founding, AG has become one of the largest dedicated energy growth equity investment firms, making investments on a global basis. Companies in our diverse portfolio include equipment and tool manufacturers, system designers, advanced materials and material handling businesses, technology and software providers, as well as installation, logistics, and services companies.

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The firm’s success is based on our selection and support of talented and dedicated management teams and their businesses, rooted on the following principles:


Innovative technologies continue to emerge as promising and profitable solutions to global energy and environmental challenges. Angeleno Group believes that market conditions, as well as a transforming business environment and policy landscape, present compelling opportunities for companies in the clean energy and climate solutions sector. The firm invests in a diverse portfolio of companies and has identified seven focus areas that represent a large addressable universe of opportunities.  

Angeleno Group’s clean energy and climate solutions sector focus allows portfolio companies to benefit from the firm’s longstanding relationships and deep industry expertise. Our investment focus areas include:


Click Energy
Eka Systems
GT Advanced Technologies
New Forests
Patriot Environmental Services
Renew Financial

The portfolio companies presented are intended to be illustrative of the types of investments made by Angeleno Group and do not include all investments made.


We actively participate in the growth of our portfolio companies. Through active board participation, as well as advisory roles in product and business development, strategy, sales, and corporate finance, Angeleno Group looks to partner with portfolio companies seeking an experienced and knowledgeable financial partner. In addition to our seasoned investment team, Angeleno Group’s Board of Advisors and investors are some of the country’s most respected and influential business, political and scientific leaders, with distinguished careers in energy, technology, policy and finance – former CEOs, board members, or senior executives from some of the world’s largest and most successful global clean energy and climate solutions technology companies.
    Our Partners have decades of operating and advisory experience in product development, marketing, sales, corporate finance, and strategy in high-growth companies. Angeleno Group’s seasoned team has significant experience in private equity transactions, venture capital investing, public market investing, operating company management, and investment banking. This broad range of expertise allows us to fully support high-growth portfolio companies through periods of transition and expansion.
    Angeleno Group invests opportunistically, leveraging the expertise built from years of focus on the high-growth clean energy and climate solutions technology sectors.
    Our investment strategy has proven to be successful through a variety of market conditions. Our portfolio is:

    Sector-focused and stage-agnostic

    Diversified and risk-managed

    High-growth and targeted high-return

    Angeleno Group’s investment process is designed to generate returns and mitigate risk at each stage of the investment cycle. There are three broad themes that underpin our selection process:

    The firm likes to invest in technology-agnostic tools that enable many industry participants to flourish.

    The firm looks to identify companies with efficient and flexible capital structures.

    The firm looks for significant near-term markets, which can be leveraged to longer-term and much larger markets.


The collective experience of the Angeleno Group team encompasses investment and capital markets skills, transactional expertise, and entrepreneurial and operational experience.Our professionals have backgrounds in institutional investment management, energy sector entrepreneurial endeavors, corporate finance, transactional/legal, management engineering, technology product development, sales and marketing, and government/regulatory roles. Additionally, we are able to draw upon our Board of Advisors, operating partners and strategic investors who represent domains of expertise relevant to specific portfolio companies or areas of investment focus.


Danny Jaffe


Michelle Kincanon

Vice President, Finance and Sustainability

William Miller

Chief Operating Officer

Irene Nicolae

Senior Analyst

Paula Robins

Chief Financial Officer

Anil Tammineedi


Yaniv Tepper

Managing Partner & Co-Founder

Daniel Weiss

Managing Partner & Co-Founder
Operating Partners

Dominic Drenen

Operating Partner

Mark Henderson

Operating Partner

Steve Lockard

Operating Partner

Terry Tamminen

Senior Advisor

Thomas Zarrella

Operating Partner
Board of Advisors


Angeleno Group has designed and implemented a Responsible and Sustainable Investment Program for its investors centered around the selection and active management of portfolio companies in the clean energy and climate solutions sectors. We are almost exclusively invested in companies that develop products and services to profoundly reduce greenhouse gas emissions and proactively respond to critical sustainability and global energy and environmental challenges of our time. As a clean energy and climate solutions private investment firm, our role is to select well-positioned companies and assist in bringing their environmental innovations to market and scale so that we can achieve strong financial returns for our investors.

Our approach to Responsible and Sustainable Investing (RSI) supports and aligns with our core values and our commitment to value creation and disciplined portfolio management. Angeleno Group’s RSI Policy is designed to be adaptive and responsive to emerging environmental, social and governance (ESG) topics.

Angeleno Group is a signatory to the United Nations-supported Principles of Responsible Investing (UNPRI). We aim to align our Responsible and Sustainable Investing Program to support each of the six Principles for Responsible Investment. As part of our commitment to advancing responsible investment, we aspire to find meaningful ways in which our portfolio companies can support progress toward the UN 2030 Sustainable Development Goals.

We invite you to read Angeleno Group’s latest Responsible and Sustainable Investing report to learn about our ESG strategy and achievements.