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Parthenon
Austin, Texas, United States
What it is
Parthenon is a constituent relationship management and communications platform for elected officials, available on Android, iOS, and web. Its Reach product sends newsletters, alerts, press releases, and SMS from one platform. Nexus brings together constituent records, an inbox, messaging, and casework management. Its Outlook add-in can validate constituent residency, generate AI-enabled responses, and summarize previous interactions; it is approved for Microsoft 365. Nexus also includes a mobile app for capturing constituent interactions in the field. Parthenon lists city councils, county commissions, school boards, state legislatures, and the U.S. Congress among its customers. The cloud product is paid, with a 14-day trial and no free plan. Reach plans start at $19 a month, billed monthly, for up to 1,000 contacts and one user license; a .gov email is required. SMS is an optional paid add-on with platform fees and usage-based credits, and sending requires registering a 10DLC number with the FCC. Parthenon Labs says it is SOC 2 Type 2 certified; Nexus states that customer data is hosted in the United States and remains government-owned.
For and against
For
- Reach supports newsletters, alerts, press releases, and SMS.
- Nexus combines constituent records and casework management.
- Outlook add-in supports residency validation and response drafting.
- Nexus includes a mobile app for field interactions.
- Customer data remains government-owned, according to Nexus.
Against
- There is no free plan.
- Reach requires a .gov email.
- SMS is a paid add-on with usage-based credits.
- SMS sending requires 10DLC registration with the FCC.
The verdict
Parthenon brings outreach and constituent casework into a platform for elected officials, with an Outlook add-in and mobile app in Nexus. Consider the contact limits, user licenses, and separate SMS requirements when evaluating a Reach plan.
Who it suits
Parthenon is intended for elected officials and government teams managing constituent communication and casework. Its listed customers include local, state, and federal public bodies.
Plans and prices
Reach 1k
up to 1,000 contacts · one user license · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 2.5k
up to 2,500 contacts · one user license · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 5k
up to 5,000 contacts · one user license · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 10k
up to 10,000 contacts · two user licenses · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 15k
up to 15,000 contacts · two user licenses · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 20k
up to 20,000 contacts · two user licenses · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 25k
up to 25,000 contacts · three user licenses · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 30k
up to 30,000 contacts · three user licenses · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
Reach 40k
up to 40,000 contacts · three user licenses · SMS add-on · .gov email required
Read 15 Oct 2026 · parthenon.co
On the record
- AI
- Microsoft's certification record says AI is part of the app's core workflows.learn.microsoft.com · read 15 Oct 2026
- AI inbox
- Nexus offers an Outlook add-in that validates constituent residency, generates AI-enabled responses, and summarizes past interactions.parthenon.co · read 8 Oct 2026
- API limit
- The Microsoft certification record says the add-in does not use Microsoft Graph, additional Microsoft APIs or Microsoft Entra ID integration.learn.microsoft.com · read 15 Oct 2026
- Audience
- Parthenon lists city councils, county commissions, school boards, state legislatures, and U.S. Congress among its customers.parthenon.co · read 8 Oct 2026
- Audience management
- Nexus lets offices build subscriber lists, segment audiences and target groups using voter-file information.parthenon.co · read 15 Oct 2026
- Company
- The company identifies itself as Parthenon Labs Incorporated and names Josh Billigmeier and Nick Consler as co-founders.parthenon.co · read 8 Oct 2026
- Company launch
- Co-founder Josh Billigmeier announced Parthenon Labs as a new govtech venture with Nick Consler and described its planned AI-enabled constituent platform.linkedin.com · read 15 Oct 2026
- Company legal record
- Justia records Parthenon Labs Incorporated as the corporation applying for the PARTHENON LABS trademark for SaaS CRM software for elected officials.trademarks.justia.com · read 15 Oct 2026
- Compliance limit
- Microsoft's record lists SOC 2 Type 2 certification dated July 31, 2025, but says Parthenon is not ISO 27001 or FedRAMP compliant.learn.microsoft.com · read 15 Oct 2026
- Data ownership
- Nexus states that government customers retain ownership of their data and that data is hosted in the United States.parthenon.co · read 15 Oct 2026
- Data processed
- The certified app processes Outlook inbox email addresses and stores sender and message-content information in U.S. databases.learn.microsoft.com · read 15 Oct 2026
- Email analytics
- Reach reports opens, clicks, unsubscribes and SMS responses in one view.parthenon.co · read 15 Oct 2026
- Email editor
- Reach provides reusable content blocks and a template library for composing newsletters and alerts.parthenon.co · read 15 Oct 2026
- Hosting model
- Microsoft's certification record describes Parthenon as SaaS hosted on Amazon Web Services.learn.microsoft.com · read 15 Oct 2026
- Industry event
- The League of California Cities 2025 conference program lists Parthenon Labs as an exhibitor at booth 650.my.calcities.org · read 15 Oct 2026
- Integrations
- Nexus integrates with Outlook through a Microsoft 365-approved add-in.parthenon.co · read 8 Oct 2026
- Licence
- The terms identify the software, services and documentation as Company intellectual property and prohibit copying, modification, reverse engineering and redistribution.parthenon.co · read 15 Oct 2026
- Limit: eligibility
- Reach signup requires a .gov email address on every published tier.parthenon.co · read 15 Oct 2026
