Marguerite Osei

Profile

Nonprofit fundraising leader with 9 years of experience securing major gifts, managing capital campaigns, and building donor pipelines for health-equity and education-focused organizations. Specializes in moves management, planned giving cultivation, and grant portfolio development. Closed a $4.2M capital campaign ahead of schedule and grew annual fund revenue by 61% over three years at a mid-size regional nonprofit.

Work Experience

Senior Fundraising ManagerMar 2020 - Present

Brightwell Community Foundation, Atlanta, GA

Directed a $4.2M capital campaign for a new health-equity resource center, closing 18 months ahead of the 3-year timeline by securing 14 lead gifts averaging $180K each.
Grew the annual fund from $870K to $1.4M over three fiscal years by redesigning the mid-level donor ladder and launching a monthly giving program that now retains 74% of enrollees.
Managed a portfolio of 92 major-gift prospects ($25K+), personally closing $2.1M in gifts in FY2023 through a structured 6-step moves-management cycle tracked in Salesforce NPSP.

Development OfficerJun 2017 - Feb 2020

Peachtree Education Alliance, Atlanta, GA

Secured 11 foundation grants totaling $680K in a single fiscal year by rewriting the organization's case for support and aligning proposals to each funder's strategic priorities.
Launched the alliance's first peer-to-peer fundraising campaign on Classy, raising $112K in 6 weeks with 340 individual donors—47% of whom were first-time contributors.
Cultivated 28 planned-giving conversations resulting in 6 documented bequest intentions valued at an estimated $1.9M in deferred revenue.

Development AssociateAug 2015 - May 2017

Harmon Health Services, Decatur, GA

Supported a 4-person development team that raised $3.1M annually, managing gift processing, acknowledgment letters, and donor database hygiene for 4,800+ records in Raiser's Edge.
Coordinated 3 signature fundraising events per year, collectively netting $210K while reducing per-event costs by 18% through vendor renegotiation and volunteer optimization.
Researched and identified 60 prospective major donors using DonorSearch and WealthEngine, producing briefing profiles that contributed to 9 new solicitations totaling $340K.

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