Sourcing Major Donors During a Capital Campaign: 3 Tips

Sourcing capital campaign donors is essential for reaching your fundraising goal. Discover new ways to uncover donors and set yourself up for successful asks.

Steven Shattuck

Published: 

October 28, 2026

Updated: 

Capital campaigns are the ultimate test of your nonprofit’s fundraising strategy. Does your team have the capacity, experience, and resources necessary to raise millions over the course of several years?

For many nonprofits, the trickiest part of this question is whether they have enough major donor relationships for their campaign to succeed. Without proper preparation and strategy, it’s not uncommon for nonprofits to find themselves halfway through the quiet phase with little idea who to turn to for their next gift.

To help your nonprofit source the major donors it needs for its next capital campaign, we’ll explore three essential strategies for identifying and connecting with prospective major donors.

1. Assess your current donors.

Often, nonprofits think they can’t run a capital campaign because they lack major donors. After all, if your top donors are only giving $10,000 or $25,000 a year, how can you expect them to donate $500,000?

However, just because a donor currently isn’t making major gifts doesn’t mean they lack the capacity or affinity to. Rather than trying to make brand new connections, start your campaign by assessing the donors who have already made a commitment to your cause:

  • Conduct prospect research. Use prospect research tools to discover which of your current donors have untapped giving capacity. A few wealth markers include real estate holdings, stock holdings, executive job titles, and major contributions to political campaigns or other nonprofits.  
  • Analyze donor behavior. Rather than just trying to target wealthy people, consider which of your supporters have demonstrated a commitment to your nonprofit. For example, you might have a donor who only gives $5,000 every year but always attends your annual gala. While not every supporter has hidden wealth, individuals who are deeply engaged with your nonprofit are far more likely to support your campaign than wealthy strangers.
  • Make a strong case for your campaign. If you have donors with the potential to give major gifts, you might wonder why they haven’t already done so. For some of them, the answer might simply be that you haven’t given them a reason to yet. By creating a strong case for support that outlines the necessity and impact of your project, you may inspire previously mid-level donors to finally make their major gift.

Even if you overlook a prospective major donor during your feasibility study or quiet phase, you can still connect with them during the public phase. The public phase is an opportunity to invite the broader community to support a campaign that already has strong momentum. A donor may still come forward with a significant gift at this stage, but your campaign plan should not depend on unexpected gifts to reach its goal.

While you shouldn’t factor surprise gifts like these into your fundraising goal, be ready for them and ensure your fundraising team doesn’t overlook any of your current supporters.

2. Your current major donors are a great resource.

Cold donation solicitations rarely work. However, introductions to new prospects facilitated by your top supporters frequently lead to successful conversions. Alongside making major gifts themselves, these supporters can help you connect with other people in their networks who may also be interested in making a major gift.

Before approaching your major donors about helping source new leads, follow these steps:

  • Get the donor invested in your campaign. The more committed a donor is to your campaign, the more actively they will network for you. Capital Campaign Pro’s guide to capital campaign committees recommends involving influential volunteers who can help move the campaign forward. When recruiting, consider each person’s commitment to your mission, skills, connections, availability, and willingness to follow through. Doing so will make them more dedicated to ensuring your campaign succeeds,  making it more likely they’ll help source connections and make lead gifts themselves.
  • Do your own research. Many communities have a group of major donors who give to a variety of projects. Read donor walls, check the people thanked in playbills, and research other nonprofits’ major campaigns, and you'll likely see the same names coming up over and over again. For instance, if you see five recurring names and have a relationship with one of them, try approaching that specific donor, as they  possibly have connections with the others and can set up introductions.
  • Make the donor feel appreciated. Along with helping you find new major giving prospects, working with your current major donors is an opportunity to strengthen your existing relationships.. During your feasibility study, ask a donor who else they think might be interested in making a major gift. Once you’ve followed up with their suggestions, circle back with a quick update and a thank-you. It’s a small gesture that makes donors feel like part of the team and keeps them excited to help you open more doors.

The earlier you can have productive conversations about your campaign with major donors, the better. Early conversations with top donors can help you identify whom to include in your feasibility study and begin building relationships. Use the study to test your case and working goal, and to understand donors’ interest and potential support before finalizing your campaign plan.

3. Explore Foundation and Corporate Giving.

Individual donors are often the primary source of major campaign gifts, but foundations and businesses may also be prospects when their priorities align with your project. Before you begin your feasibility study, put together a campaign readiness checklist to help you prepare for the process and identify who you need to speak with. As part of your campaign readiness checklist, identify the people and organizations you should talk with during the study. This may include foundation leaders and influential business owners with a connection to your mission or project.

Before reaching out, do your homework:

  • Review their giving priorities. Look at a foundation’s grant guidelines, past recipients, geographic focus, application deadlines, and restrictions. For businesses, research their community giving, sponsorship programs, and involvement in similar projects.
  • Look for an existing connection. If your organization has received support through past sponsorships, consider whether that relationship could lead to a conversation about your campaign. A board member, donor, or community leader may also be able to introduce you to someone at a foundation or business.
  • Track institutional prospects alongside individual donors. Add promising foundations and businesses to your campaign prospect list or depth chart, and assess what gift level might be realistic. Funding cycles and priorities can change, so don’t build your campaign goal around gifts that have not been committed.

Foundation and corporate gifts can strengthen a campaign, but they should complement a well-developed pool of individual prospects. Focus your outreach on organizations with a clear connection to your mission and project.

The more major donor prospects your nonprofit has, the more likely you are to reach your campaign goals. To improve your donor sourcing, start with the connections you have and focus on building relationships that can lead you to even more potential donors.

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Steven Shattuck

Steven Shattuck is the Director of Engagement at Capital Campaign Pro. He is the author of Robots Make Bad Fundraisers – How Nonprofits Can Maintain the Heart in the Digital Age and brings over 15 years of experience in the nonprofit sector to his work.

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