Arabella Advisors (via the Sixteen Thirty Fund)

Leonard Leo Arabella Advisors
Builds and steers a network Builds and steers a network
Operates mostly out of public view Operates mostly out of public view
Uses nonprofits and fiscal vehicles Uses nonprofits and fiscal vehicles
Focuses on long-term institutional outcomes Focuses on long-term institutional outcomes
Rarely the public face of campaigns Rarely the public face of campaigns

The Other Side of the Leonards Coin: Arabella Advisors and the Progressive Influence Network

Arabella Advisors dissolved in late 2025 and transferred its services to Sunflower Services. That organizational change does not alter the relevance of what follows. This discussion focuses on the methods, structures, and influence models that operated under Arabella’s umbrella—models that continue to exist across the political spectrum regardless of name or branding.

If you’ve read about Leonard Leo and wondered whether there’s an equivalent force operating on the other side of the political spectrum, the short answer is: yes — but it looks different.

If you are unfamiliar with Leonard Leo then I suggest you read our brief on him, it will make my cross references here clearer.

Rather than centering on one highly visible figure, progressive influence has tended to operate through organizational networks. One of the most significant of those is Arabella Advisors.

This is not a critique or an endorsement. It’s an attempt to understand how modern political influence actually works.


What Is Arabella Advisors?

Arabella Advisors is a for-profit consulting firm that specializes in managing and supporting nonprofit organizations and advocacy efforts. Its influence comes less from public messaging and more from infrastructure.

Arabella administers several large nonprofit funds, including:

  • The Sixteen Thirty Fund

  • The New Venture Fund

  • The Hopewell Fund

  • The Windward Fund

These funds act as fiscal sponsors, meaning they legally host and manage hundreds of projects that may not have their own independent nonprofit status.

In practical terms, this allows advocacy campaigns to:

  • Launch quickly

  • Share administrative resources

  • Receive funding efficiently

  • Operate under existing legal umbrellas

This structure is entirely legal and widely used across the nonprofit world.


How the Network Operates

Unlike traditional nonprofits with a single mission and brand, Arabella’s model supports many separate initiatives at once, often focused on:

  • Voting and election policy

  • Climate and environmental advocacy

  • Healthcare access

  • Judicial and legal reform

  • Democracy and governance issues

Most people encountering these efforts don’t see “Arabella” at all. They see:

  • A campaign name

  • A policy group

  • A ballot-issue committee

  • An issue-specific advocacy organization

That’s not secrecy — it’s organizational design.


Why Some Critics Raise Concerns

Criticism of Arabella’s network usually centers on three issues:

1. Donor opacity
Some of the funds administered through the network do not publicly disclose individual donors, which raises concerns similar to those voiced about conservative dark-money groups.

2. Scale and coordination
Because many projects are housed under a small number of fiscal sponsors, critics argue this can concentrate influence in ways that are hard for the public to track.

3. Distance from local impact
National funding routed through professionalized networks can shape outcomes in local or state-level debates without local communities fully understanding where the support originated.

These concerns mirror critiques made of conservative influence networks — which is precisely why Arabella is worth understanding.


Why Others Defend the Model

Supporters argue that Arabella’s structure:

  • Improves efficiency

  • Reduces administrative duplication

  • Allows rapid response to emerging issues

  • Helps smaller or newer causes compete in an expensive political environment

They also point out that conservative networks have used similar structures for decades — often more visibly and more successfully — and that progressive donors were slow to build comparable infrastructure.


Why This Matters

Arabella Advisors isn’t the progressive version of a political party, a campaign, or a single leader.

It’s something subtler:

An influence platform — not for persuasion, but for coordination.

That makes it powerful, and it also makes it easy to misunderstand.

Just as Leonard Leo represents how conservative legal influence became institutionalized, Arabella represents how progressive advocacy adapted to a landscape where money, law, and organization matter as much as ideas.


The Larger Point

Seeing Arabella Advisors clearly helps avoid two common mistakes:

  • Believing influence only flows from one side

  • Confusing infrastructure with ideology

Modern politics is less about speeches and more about systems — systems that decide which ideas get sustained, funded, and repeated over time.

Understanding those systems doesn’t require agreement.
It requires attention.

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