Your Wealth. Your Values. One Clear Plan.

Longwave Financial helps thoughtful New Yorkers build ESG and sustainable investing portfolios with purpose and confidence.

You get a financial life that reflects your values, managed by an independent fiduciary team that genuinely cares.

 
 
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What You Can Expect with Longwave

We begin with your non-negotiables for sustainable investing. Climate exposure. Governance thresholds. Social screens. Impact priorities.

We translate those standards into portfolio construction decisions, manager selection, exclusions, concentration limits, and ongoing oversight.

As independent fiduciary asset managers, we are not tied to proprietary funds or product incentives. Our role is to apply your standards consistently and rigorously.

 

If You’re Formalizing or Deepening Your ESG Strategy

You may already hold ESG-labeled funds. The harder question is whether the underlying holdings and methodologies meet your standards.

We help you move from general sustainable investing exposure to a defined, defensible framework. One that reduces greenwashing risk, clarifies trade-offs, and stands up to scrutiny.

Because ESG credibility is earned through the process and protected through discipline.

⟶ Contact us

 
 

Sustainable Investing Requires Ongoing Oversight

A credible approach requires review, adjustment, and transparency. We monitor portfolios against your defined criteria and make changes when alignment weakens or risks increase.

This isn’t about chasing themes. It’s about protecting the integrity of what you’ve built over time.

We create a disciplined framework that keeps your capital aligned as your business grows and the sustainable investing landscape evolves, so your money continues to support the impact you care about.

 

 

Trusted by Values-Driven Businesses and Communities

Our work is grounded in independence, research, and accountability, the same principles that define credible ESG leadership.

We'd love to learn more about your priorities and help you integrate sustainable investment strategies in ways that matter to you.

⟶ Fill Out Our Form

 
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FAQs

Have questions about how we can support your values-driven financial journey? Here are some common questions to help clarify our approach and services. If you don’t find the answers you’re looking for, feel free to reach out!

 
  • We treat ESG as due diligence, not marketing. We focus on credible data, clear alignment with your priorities, and transparency about trade-offs.

  • Because the implementation is where most strategies fall short, we simplify the complexities and help you create a strategy you can rely on.

  • For business owners and leaders who take sustainable investing seriously and want their capital to meet the same clear standards as their operations consistently, transparently, and over the long term.

  • Absolutely. Many of our clients are small business owners building for the future and navigating the complexities of taxes, benefits, and long-term planning.

 

Your Turn!

You’ve already taken on responsibility; now let’s bring clarity to your financial strategy.

If you're part of the Green Business Network (or on your way there), we’d love to help you align your finances with the business you’re building.

 
 
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