Soapbox Engage Blog

Quorum is the most established name in this space, and its Grassroots product (which now includes what used to be the standalone Phone2Action/Capitol Canary platform) supports action campaigns and constituent messaging to legislators. It's built for public affairs professionals at organizations like Expedia, Uber, and Walmart, not nonprofit advocacy teams specifically.

Quorum does list Salesforce among its integrations, but it's a connector into a broader public affairs platform, not a nonprofit-CRM-first design, and some users have reported data sync friction. Pricing isn't published; expect an enterprise sales process.

Best for: Enterprise government affairs and public affairs teams tracking legislation across many jurisdictions.

Muster supports advocacy campaigns, petitions, email and SMS outreach, embeddable action forms, and district-level supporter targeting. It's genuinely available on the Salesforce AppExchange, which puts it in the same category as Soapbox Engage on the integration question, worth taking seriously if you're comparing the two.

Where it differs: Muster's own pricing page states costs vary based on the number of advocates or unique action-takers uploaded to the platform, with modular, à la carte plans rather than a flat rate. No trial is offered; pricing requires contacting sales.

Best for: Nonprofits, associations, and chambers of commerce that want a dedicated advocacy CRM with a real Salesforce app.

VoterVoice, part of FiscalNote, focuses on campaign building, letter writing to elected officials, newsletters, and scorecards, serving over 2,000 organizations across associations, corporations, and nonprofits. It does not appear to offer a dedicated petitions product; its strength is action-style advocacy campaigns.

On integration, VoterVoice offers an API for connecting to "core systems" rather than a purpose-built Salesforce app. If direct, real-time Salesforce sync is a requirement, confirm exactly what the API supports before assuming parity with platforms built specifically for Salesforce.

Best for: Associations and corporations running legislator-messaging campaigns who don't need direct Salesforce integration.

Bonterra EveryAction (formerly EveryAction, now part of Bonterra alongside the former Salsa Labs and GiveGab products) offers petitions, action alerts, and click-to-call campaigns with claimed high message deliverability to legislators, bundled with fundraising and donor management in a single system.

The important distinction: EveryAction is generally positioned as an alternative to Salesforce, a full nonprofit CRM in its own right, not a layer that sits on top of an existing Salesforce org. It does offer some Salesforce connectivity, but if your organization has already invested in Salesforce as its system of record, this is a different kind of decision than adding an advocacy tool: it's evaluating whether to run two CRMs or migrate off one.

Best for: Nonprofits that want advocacy, fundraising, and donor management in one all-in-one CRM, instead of a tool layered on top of Salesforce.

Springboard supports petitions, letter-to-target campaigns, social actions, and custom targeting of decision-makers with auto-districting. Jackson River markets it as optimized specifically for both Salesforce NPSP and Nonprofit Cloud, with near real-time data syncing, making it a legitimate comparison point against Soapbox Engage on the Salesforce-integration question.

Springboard is priced as a platform fee based on the features used (fundraising, advocacy, peer-to-peer) plus donation transaction volume and a setup/service fee, which tends to put it at a higher price point suited to larger organizations. Organizations like the ASPCA are cited as customers, which signals its enterprise positioning.

Best for: Larger nonprofits and public media organizations that want advocacy and fundraising together with deep Salesforce optimization.

Salsa Engage offers advocacy, email marketing, peer-to-peer, and fundraising tools, and it has historically had a genuine Salesforce AppExchange app with bidirectional, real-time-style sync. The catch: Salsa Labs was acquired by EveryAction in 2021 and folded into Bonterra shortly after. Bonterra has publicly discussed sunsetting Salsa products, then walked that timeline back; as of 2026, Salsa Engage is still supported for existing customers but is no longer being sold to new ones.

If you're currently on Salsa Engage, migration planning is worth doing proactively rather than waiting for another sunset announcement. If you're shopping new, the platform's uncertain roadmap is a real risk to factor in.

Best for: Existing Salsa Engage customers. Not recommended as a new purchase.