7 Powerful Letter of Support Templates for Grant Applications

Why These Templates Will Help Secure Your Grant Funding

Letters of support can make or break your grant application. According to a survey of foundation program officers, applications with strong, specific letters of support are 35% more likely to receive funding than those without such endorsements. However, many organizations struggle to create compelling support letters that truly strengthen their case.

This comprehensive collection of letter of support templates for grant applications has been specifically designed to address the most common scenarios nonprofits encounter when seeking funding. Each template follows proven frameworks that grant reviewers respond to positively, helping your application stand out in a competitive funding environment.

Whether you're a community partner, technical expert, government agency, or program beneficiary, these templates will help you craft professional, persuasive letters that demonstrate genuine commitment and maximize the applicant's chances of securing funding.

How to Use These Templates Effectively

These templates are starting points that should be thoroughly customized to reflect your unique relationship with the applicant organization and specific contributions to the project. Generic, template-like letters can actually harm an application rather than help it.

For each template:

  1. Replace all bracketed text with your specific information
  2. Add details that demonstrate genuine knowledge of the project
  3. Include concrete, specific commitments whenever possible
  4. Mention relevant data or experiences that validate the need
  5. Tailor language to align with the specific grant program's priorities
  6. Use your organization's letterhead and professional formatting

Remember that the most effective letters of support for grants are concise (1-2 pages), specific about your contributions, and clearly explain why you believe the project will succeed.

Template 1: Community Partner Letter of Support for Grant

This template is ideal for organizations that will collaborate with the applicant on project implementation. It emphasizes mutual goals, complementary services, and specific collaborative commitments.

[ORGANIZATION LETTERHEAD]
[DATE]

[ADDRESSEE NAME]
[TITLE]
[GRANT MAKING ORGANIZATION]
[ADDRESS]
[CITY, STATE ZIP]

RE: Letter of Support for [APPLICANT ORGANIZATION]'s [PROJECT NAME] Grant Application

Dear [ADDRESSEE NAME/GRANT REVIEW COMMITTEE]:

I am writing to express my strong support for [APPLICANT ORGANIZATION]'s application for the [GRANT PROGRAM NAME] to fund their [PROJECT NAME] initiative.

As the [YOUR POSITION] of [YOUR ORGANIZATION], I have [DESCRIBE RELATIONSHIP WITH APPLICANT - e.g., "collaborated with (APPLICANT) for X years on community development initiatives"]. Through this relationship, I have witnessed firsthand their commitment to [MENTION RELEVANT VALUES OR PRIORITIES - e.g., "inclusive community development and evidence-based programming"].

The proposed [PROJECT NAME] addresses a critical need in our community: [BRIEFLY DESCRIBE THE PROBLEM/NEED]. This initiative will [DESCRIBE 2-3 KEY PROJECT ELEMENTS] to effectively address this challenge. What makes this approach particularly valuable is [HIGHLIGHT UNIQUE OR INNOVATIVE ASPECT].

[YOUR ORGANIZATION] is committed to supporting this project through:
• [SPECIFIC COMMITMENT #1 - e.g., "Providing meeting space for weekly program sessions"]
• [SPECIFIC COMMITMENT #2 - e.g., "Contributing staff expertise in curriculum development"]
• [SPECIFIC COMMITMENT #3 - e.g., "Assisting with participant recruitment through our networks"]

The anticipated outcomes of this project align perfectly with the priorities of the [GRANT PROGRAM NAME], particularly [MENTION 1-2 SPECIFIC FUNDER PRIORITIES]. Based on [APPLICANT ORGANIZATION]'s track record of [MENTION PREVIOUS SUCCESS], I am confident they will successfully implement this project and achieve these important outcomes.

Please feel free to contact me at [PHONE] or [EMAIL] if you require any additional information regarding my support for this valuable initiative.

Sincerely,

[SIGNATURE]

[PRINTED NAME]
[TITLE]
[ORGANIZATION]

Template 2: Expert/Technical Advisor Letter of Support for Grant

This template is designed for subject matter experts, academics, or technical specialists who can validate the methodology, approach, or evidence base of the project. It emphasizes professional credibility and technical evaluation.