New York is the most crowded donor market in the country, and attention here is expensive. We build growth strategy that turns that attention into recurring support for your mission.
Campaigns Launched
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In-House Specialists
Nonprofit · New York, NY
Nobody competes for donor dollars like a New York nonprofit. You are fundraising in the same five boroughs as national foundations, hospital systems, and museums with eight-figure budgets, all bidding for the same attention across the same feeds. Year-end and Giving Tuesday turn that competition into a bidding war, acquisition costs spike, and small development teams get buried while board members ask why the donor file is not growing.
Cosmo builds growth strategy that fits how New York gives. We map your real cost to acquire and retain a donor, then build full-funnel campaigns - from the ad to the landing page to the donation flow - that our in-house team ships same-day. Strategy and execution live under one roof, so when a year-end push needs a new page or a fixed checkout, it is live in hours, not stuck in a vendor queue while the giving window closes.
Our Approach
We start with the numbers that matter: cost to acquire a donor, retention rate, and lifetime value across your New York audiences. That tells us where growth is actually leaking, whether it is acquisition, the donation flow, or lapsed donors nobody is winning back.
We design campaigns end to end - audience, message, creative, landing page, and donation experience - tuned for how New Yorkers respond and when they give. Every dollar maps to a measurable outcome, not a vanity metric, so your board can see exactly what each campaign returns.
Our strategy, creative, and dev teams sit together, so changes ship same-day instead of waiting on outside vendors. We track behavior, test relentlessly, and move budget toward what works - critical when New York acquisition costs jump every year-end.
Proof
For Syria Relief, we raised over $1M at 3.4x ROAS and reached 509K people - proof that the right growth strategy turns donor attention into real funding at scale.
Common Questions
What New York Nonprofit teams ask us most.
Yes. Cosmo is headquartered in Austin and serves nonprofits across New York and nationally. Donor growth is built and measured digitally, so our distance never slows you down - in fact, our in-house team ships changes same-day, faster than most local vendors juggling multiple accounts.
We plan for it. New York acquisition costs climb sharply in Q4 as every cause bids for the same attention, so we build your peak-season campaigns early, lock in warm audiences ahead of the rush, and shift budget in real time toward the channels still converting when costs spike.
We are a marketing partner, not your legal or filing team, so we do not handle CHAR500 registration with the NY Attorney General. We do make sure your campaigns, donation pages, and disclosures are built to support a compliant, trustworthy giving experience for New York donors.
It covers donor acquisition, retention and reactivation, the full donation funnel, and the data behind it. We connect strategy to in-house creative and development, so you get the plan and the people who execute it - ads, landing pages, and donation flows that work together.
Early signals like cost per donor and conversion rate move within the first weeks once campaigns are live and the funnel is fixed. Meaningful growth in your donor file and recurring revenue builds over a few months as we test, optimize, and reinvest in what is working.
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Tell us where you want to be. We'll build the system to get you there.