Think about the last time you needed to pull a list for a campaign. You probably exported some data, filtered it in a spreadsheet, cross-referenced another system, removed duplicates, and ended up with something that was accurate enough for the moment but would be out of date by next week.
Now multiply that across every appeal, every event invitation, every re-engagement campaign you run in a year.
This is one of the most significant hidden costs in nonprofit marketing. Not just the time it takes, but the errors it introduces and the opportunities it misses. By the time a manually built list is ready, some of the people on it have already donated. Some have lapsed. Some have changed their minds entirely.
Ortto's audience segmentation works differently. You build a segment once, define the criteria, and it updates automatically from that point on. The right people are always in it. The wrong people are always out.
What makes an audience dynamic
A dynamic audience in Ortto is defined by rules, not by a fixed list of names. Supporters move in and out automatically as their behaviour and attributes change.
An audience defined as "donated in the past 12 months" will always contain your current active donors, regardless of when you last updated it. As new donations come in, supporters are added. As the 12-month window passes for others, they drop out. No manual work required.
This matters because your supporter base is not static. People lapse, re-engage, upgrade their giving, sign up to fundraise, attend events, and show new signs of intent every day. A static list cannot keep up with that. A dynamic audience can.
The audiences worth building first
There are more possible segments than any team needs to start with. The following groups give you immediate practical value and cover the most important conversations in a typical fundraising program.
Your core donor segments
Active donors (donated in the past 12 months) are your giving base. This is your primary appeal audience and your most important stewardship list. Know who is in it at all times.
Lapsed donors (last donation 13 or more months ago) are your re-engagement targets. They remember you, they gave once, and the right message at the right time can bring them back. This window is your best re-engagement opportunity.
One-time donors (total donations equals one, none in the past 12 or more months) represent a specific missed opportunity: the second gift. Converting a one-time donor to a returning donor is one of the highest-leverage moves in fundraising retention.
Recurring donors (giving frequency is monthly or quarterly) are your most loyal supporters and the most important group to protect. Flag them separately so they are never inadvertently included in acquisition or lapse messaging. These are high-value supporters who deserve dedicated nurture and stewardship.
Your engagement segments
Active peer-to-peer fundraisers (fundraising activity in the past 12 months) are your most visible advocates. They extend your reach in ways your marketing budget cannot replicate. They deserve dedicated communication, not the same messages as everyone else.
High-intent website visitors (visited a donation or event page two or more times in the past 30 days) are showing interest before they act. This audience only exists because of your website tracking, and it is one of the most valuable segments you can build. A timely, relevant message to someone actively considering a gift can make the difference between conversion and a missed opportunity.
Email engagers (opened or clicked three or more emails in the past 60 days) are warm and responsive. When you need to maximise engagement on a time-sensitive campaign, this is often your best-performing audience. They are warm for deeper asks.
Your cross-segment opportunities
These are some of the most powerful audiences you can build because they identify supporters ready to take a next step they have not taken yet.
Donors who have not fundraised have already demonstrated that they believe in your mission enough to give money. The question worth asking is whether they would also give their network. A thoughtful invitation to your next peer-to-peer campaign can convert your most financially committed supporters into your most active advocates.
Fundraisers who have not donated personally have given their time and their network but have never made a direct gift. This is a meaningful conversion opportunity, and the ask can be framed around their own fundraising momentum.
New to your organisation (first interaction within 90 days) are supporters in the earliest stage of their relationship with you. They deserve a welcome experience that sets the tone and introduces them to the breadth of your work. Getting this right early makes a real difference to long-term retention.
Audiences are the top layer
Here is the distinction that separates Ortto from most segmentation tools: audiences are not the end of the story. They are the top layer.
Once your audiences are built, the real power comes from advanced filtering, which lets you drill deeper into any segment to surface precise groups that would be impossible to maintain manually.
For example, you might have an audience of "active donors." That is useful on its own. But when you apply a saved filter for "donated more than $100" or "attended an event in the last 90 days" on top of that audience, you can quickly understand specific subgroups within it without building an entirely new segment.
Ortto's Saved Filters, found in Settings > Customer Data > Saved Filters, give you this deeper level of segmentation. You create a filter once, save it, and apply it on top of any audience whenever you need it. This means your audiences stay clean and high-level while your filters give you the precision you need for specific campaigns, reports, or outreach decisions.
A few examples of what this layering makes possible:
Active donors who have also attended an event in the past 24 months and have a high engagement score: your strongest upgrade candidates
Supporters who visited your regular giving page in the past 30 days but have no recurring gift: high-intent prospects for a monthly giving ask
Fundraisers from your last event who did not fundraise in this year's event: a warm re-recruitment audience with a personal connection to the campaign
None of these lists could be reliably built or maintained manually. As dynamic audiences in Ortto with saved filters applied on top, they give you both breadth and precision.
How audiences connect to everything else
Audiences in Ortto are not just for one-off campaigns. They are the connective tissue between your data and your marketing activity.
The same audience can power a one-time email campaign, feed an automated journey, define who enters or exits a score calculation, and inform what you see in a dashboard. You build the segment once and it works across every channel and campaign you run.
This also means your targeting decisions accumulate in value over time. Every audience you build becomes a reusable asset. When a new campaign comes up, you are selecting from a library of accurate, live segments rather than starting from scratch.
A practical building order
You do not need every segment on day one. A sensible starting path looks like this:
Start with your core donor audiences: active, lapsed, one-time, and recurring donors. These four segments cover the most important conversations in your program and give you an immediate picture of your donor base.
Add engagement segments next. Build your active P2P fundraisers, high-intent website visitor, and email engager audiences. These require your tracking and campaign data to be flowing, which is why they come second rather than first.
Identify your cross-segment opportunities. Find donors who have not fundraised, fundraisers who have not donated, and supporters who are new to your organisation. These are often overlooked, and the insight is immediate.
Once your audiences are in place, explore Saved Filters to start drilling deeper into each segment without creating additional audiences. This keeps your audience library clean while giving you all the precision you need.
Try it in your 14-day trial
In the 6 Step Guide to Ortto at the end of the playbook, Win 3 walks you through building your core audiences across all three groups: donor audiences, engagement audiences, and cross-segment opportunities. From there, you explore Saved Filters to drill deeper into your segments, applying reusable filters that can be used in journeys and campaigns throughout the trial.
By the end of Win 3, you will have a live, accurate picture of your supporter base divided into segments that are already ready to act on.
Next in the series: Win 4: Launch journeys that run while you focus elsewhere. Learn how to build automated, multi-step engagement sequences that respond to supporter behaviour in real time, without manual effort.
