Sustain

What Sustain does

Sustain, LLC is a privately held, Maine-incorporated software company that has built and operated a donor management and fundraising management platform since 2004, marketed under the name "Sustain Fundraising Software." Its core product is a SQL-database-backed, all-in-one constituent relationship management system for nonprofit organizations, organized around modules for donor management, donation processing (online and offline), fundraising efforts (including the LYBNT/SYBNT donor retention feature and LLE mass-marketing tool), reporting with custom UDR queries, major gifts and grants, volunteer, student/alumni, and membership management. The platform integrates with third-party systems — DonorSearch and Wealth Engine for prospect research, Vanco and OpenEdge for payment processing, MailChimp and Constant Contact for email marketing, and Microsoft Word/Excel/Outlook for mail-merge and list workflows — and exposes training content via a separate "Sustain Hub" resource center.

The company's go-to-market is a direct, inside-sales motion (phone 207-883-5550, website demo and quote-request forms) supported by content marketing (blog, magazine), email newsletters, and conference participation (AFP NNE, NEAHP). Revenue is generated via custom quote-based subscription contracts on multi-year terms, with no public pricing tiers; customer testimonials and the "bargain" positioning indicate pricing is aimed at small and mid-sized nonprofits across educational, healthcare, environmental, religious, and community verticals. Sustain has been operated continuously by its founding team — referenced as having 40+ years of combined nonprofit-software experience — without disclosed outside funding, acquisitions, or institutional investors.

Name

Sustain

Legal name

Sustain, LLC

Website

https://sustainsoftware.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Sustain is a privately held, Maine-based software company that has sold a SQL-backed, all-in-one donor management and fundraising platform to small and mid-sized nonprofits across education, healthcare, and community verticals since 2004, on a quote-based multi-year subscription model.

Ownership category

akta.pro rank

Product category

Nonprofit Fundraising Software

NAICS

Software Publishers (5132)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Data Platform (Unified Data & Analytics) Suites (HDAEABAD)

akta.pro secondary industry

Data App Builders (Forms, Portals & Internal Tools) (HDAEAKAK)

Keywords

• Donor management software
• Fundraising management software
• Nonprofit CRM software
• Donation processing software
• Nonprofit fundraising software

Headquarters

HQ city

Scarborough

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Others

Revenue model

1. Software Subscription: Sustain operates as a subscription-based fundraising management software. Pricing is quote-based and tailored to each organization's specific needs based on number of records and features required.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Sustain offers an all-in-one fundraising management software platform built on a SQL database engine for nonprofit organizations. The software combines constituent/donor management, donation processing, fundraising campaign tools, mass marketing, and drill-down reporting in a single subscription product. It is sold via quote-based pricing with optional professional services for data conversion, training, and support.

Product overview

Sustain is a comprehensive fundraising management platform designed as a unified software solution for nonprofit organizations. The core Sustain product provides donor management, donation processing, fundraising efforts, and reporting capabilities, all built upon an SQL database engine for fast and flexible data storage. The platform consists of multiple integrated modules including Donor Management (constituent profiles with DonorSearch integration), Donation Processing (online and offline gift entry with Vanco and OpenEdge payment integrations), Fundraising Efforts (LYBNT/SYBNT, LLE for mass marketing, and Microsoft Office mail-merge), Reporting (financial, analytical, campaign, donor, and custom UDR reports), and Sustain Portals (social media and external access). Additional modules cover Major Gifts & Grants Management, Volunteer Management, Student/Alumni Management, and Membership Management. The Sustain Hub serves as a resource center with training materials and video tours.

Differentiator

Problem solved

Functional benefit

Products and services

• Sustain Fundraising Management Software Complete all-in-one fundraising management software for nonprofit organizations, providing donor management, donation processing, fundraising campaign tools, mass marketing, and reporting built on a SQL database engine. Designed for small growing nonprofits through large multi-user development offices.
• Sustain Donor Management All-in-one constituent profile management for nonprofits with designated P1 & P2 information, detailed scoring matrix, relationship tracking, contact history, family information, and an integrated view of DonorSearch prospect research data within the constituent page.
• Sustain Donation Processing Single-form donation entry solution supporting both online and offline gifts, including a Web Donations page that syncs online donations, processes credit cards, and handles gift posting, donor flagging, and import field mapping.
• Sustain Fundraising Efforts Marketing and outreach toolkit for nonprofits featuring LYBNT/SYBNT donor retention analysis, LLE (Letters, Labels & Emails) mass marketing, and personalized thank-you letters via Microsoft Word mail-merge for direct donor communications.
• Sustain Reporting Drill-down reporting module providing financial reports, analytical reports, campaign reports, constituent reports, donor reports, membership reports, volunteer reports, and a UDR (User Data Retrieval) custom reporting engine.
• Sustain Portals Social media and external access feature allowing nonprofit users to view Facebook, Twitter, LinkedIn pages, organization websites, and hard-drive folders directly from within the Sustain software.
• Sustain Hub Resource center containing training videos, how-to manuals, video product tours, newsroom, and blog articles for user education and product support.

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration9 records

Feature5 records

Partnerships

Two partnerships are on record, tiered core and minor.

• DonorSearchcoreTechnology or Integration · 25 October 2016Partnership with DonorSearch, the leading provider in prospect research and development. Integration allows users to obtain potential donor information easily and seamlessly within the Sustain platform. Complete view of DonorSearch data within constituent pages with detailed scoring matrix for potential future donations.
• RedikerminorChannel Partner/ Reseller/ DistributorListed as a business partnership with Rediker, a fundraising consultant. These consultants offer knowledge and support of the Sustain program and assist in fundraising achievements.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Bloomerang: Donor management and fundraising CRM SaaS serving small and mid-sized nonprofits. Most direct competitor to Sustain given overlapping customer base, subscription model, and emphasis on donor retention features.
• Little Green Light: Donor management software focused on small to mid-sized nonprofits. Competes with Sustain in the smaller nonprofit segment with overlapping donor tracking, reporting, and mail-merge capabilities.
• DonorPerfect: Long-standing fundraising and donor management software for nonprofits of all sizes. Closely comparable to Sustain in feature scope (donor database, gift processing, reporting) and target verticals.
• Neon CRM: Cloud-based CRM built specifically for nonprofit organizations, offering donor management, fundraising, and volunteer tracking. Direct functional peer to Sustains all-in-one nonprofit platform approach.

Broad incumbents

• Bonterra (Network for Good): Suite of nonprofit software including donor management, fundraising, and grants management. Competes with Sustain across multiple nonprofit verticals with a broader product portfolio.
• Blackbaud (Raiser's Edge NXT): Largest incumbent in nonprofit software, offering Raiser's Edge NXT for fundraising and donor management. Competes with Sustain in mid-market and enterprise nonprofits with a much broader portfolio and resources.
• Salesforce Nonprofit Cloud: General-purpose CRM with a nonprofit-specific edition for fundraising, program management, and donor engagement. Broad incumbent that competes with Sustain especially in larger nonprofits seeking platform flexibility.

Emerging players

• Givebutter: Modern fundraising and donor engagement platform for nonprofits with strong online donation, event, and CRM capabilities. Emerging competitor targeting the same SMB nonprofit segment as Sustain.
• Keela: Cloud-based nonprofit CRM focused on donor management, campaigns, and reporting. Direct niche competitor with a more modern UX aimed at small and growing nonprofits.
• Funraise: Modern, cloud-native fundraising platform for nonprofits with strong UX and online donation focus. Emerging competitor to Sustain with a more modern tech stack and venture backing.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/SustainFundraisingSoftware

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sustain