Expert Part-Time Nonprofit Grant Manager Services

Get experienced grant management support without the cost of a full-time hire. One Abacus Advisory helps nonprofits strengthen proposal development, funder reporting, compliance, and grant processes so leadership can stay focused on mission delivery while funding operations remain organized, accurate, and sustainable.

Nonprofit grant manager reviewing funding documents

Our Part-Time Nonprofit Grant Manager Services

Flexible grant support for nonprofits needing stronger funding strategy, compliance, reporting, and proposal development.

Grant Strategy

Build a stronger funding pipeline through targeted funder research, opportunity prioritization, and strategic planning that aligns grant pursuits with your nonprofit's mission, capacity, and long-term sustainability goals.

Proposal Development

Improve grant readiness and submission quality with hands-on support for proposal writing, narrative development, supporting documentation, and coordination across program, finance, and leadership teams.

Grant Compliance

Manage active grants with careful attention to reporting deadlines, allowable costs, documentation standards, and internal controls to reduce risk and maintain funder confidence.

Funder Reporting

Keep grant reporting accurate and timely with structured tracking, financial coordination, and clear deliverables that support strong relationships with foundations and government funders.

Government Contracting

Support complex federal, state, and local awards with stronger grant infrastructure, drawdown accuracy, and reporting processes designed for accountability and audit readiness.

Interim Grant Support

Maintain continuity during staffing gaps, leadership transitions, or periods of rapid growth with experienced part-time grant management that keeps deadlines, submissions, and compliance on track.

Right-Sized Support

Flexible Grant Leadership That Scales

Part-time nonprofit grant manager services give your organization experienced oversight where it matters most: funding strategy, proposal quality, compliance, and reporting discipline. One Abacus Advisory helps nonprofits build stronger grant systems, reduce administrative strain, and stay prepared for funder expectations without adding the overhead of a full-time grants employee.

Grant management planning session for a nonprofit team
Trusted Nonprofit Partner

Success Stories

See how nonprofits benefit from flexible leadership, stronger systems, and clearer grant and financial oversight.

"We chose One Abacus Advisory to provide support to our accounting team while we recruited after our Finance Director departed our organization. Lorin met with me to efficiently assess how best to help our organization. Marjorie, from One Abacus Advisory, was able to step in as our interim Director seamlessly..."

Allyson Tutor
The One Abacus Difference

Why Choose One Abacus Advisory?

Nonprofits rely on us for practical, senior-level support that strengthens funding operations and accountability.

Nonprofit Focus

Dedicated nonprofit expertise supports grant processes, reporting standards, and mission-aligned operational decision-making.

Flexible Support

Part-time engagement gives your organization senior grant leadership without full-time staffing overhead.

Compliance Strength

Structured oversight helps reduce reporting risk and improve confidence with foundations and government funders.

Executive Insight

Clear, actionable guidance helps leaders and boards make informed funding and capacity decisions.

Meet Our Leadership Team

Experienced nonprofit advisors guiding stronger funding operations.

Portrait of Lorin Port, Founder and Consulting CFO of One Abacus Advisory

Lorin Port

Founder, Consulting CFO

Lorin Port is the Founder and Consulting CFO of One Abacus Advisory, bringing over 25 years of finance and accounting experience to the nonprofit sector. With a dedicated focus on nonprofit financial leadership for the past nine years, Lorin specializes in fractional CFO and COO services, nonprofit accounting, and NetSuite optimization. He has partnered with prominent organizations such as the San Diego Food Bank, Philadelphia Zoo, and Laguna Playhouse, delivering strategic financial guidance during periods of growth, transition, and complexity. Lorin is committed to empowering nonprofit leaders and boards with clear, actionable insights that drive stronger decisions and long-term organizational health. His flexible, right-sized approach ensures each client receives tailored support that aligns with their unique mission and operational needs.

Frequently Asked Questions

What does a part-time nonprofit grant manager do?

A part-time nonprofit grant manager helps oversee the full grant lifecycle, including funder research, proposal coordination, submission tracking, reporting calendars, compliance monitoring, and communication with internal teams. They also help align program, finance, and leadership staff so grant requirements are documented, deadlines are met, and reporting stays accurate without requiring a full-time employee.

How is a part-time grant manager different from a grant writer?

Is part-time grant management a good fit for small or growing nonprofits?

Can you help with both foundation grants and government grants?

Do you provide grant compliance and reporting support after an award is received?

How do part-time nonprofit grant manager services help improve funding readiness?

Can a part-time grant manager work alongside our executive director and finance team?

How do we get started with One Abacus Advisory?

Still Have Questions About Grant Support?

Talk with our team about your nonprofit's funding needs.

Trusted & Experienced

Awards and Recognition

25 plus years experience trust badge

25+ Years Experience

Deep finance and nonprofit leadership background.

Nonprofit-focused expertise trust badge

Nonprofit-Focused Expertise

Specialized support for mission-driven organizations.

Fractional leadership services trust badge

Fractional Leadership

Flexible executive-level advisory support.

Get Experienced Grant Support

Tell us about your nonprofit's grant needs, current challenges, and goals. We'll follow up with practical next steps and a right-sized support approach.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 760-845-3808. You can also send us a quick email at lorin@oneabacusadvisory.com.