Parthenon
Parthenon is a constituent relationship management and communications platform for elected officials, available on Android, iOS, and web.
What Parthenon 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 constituent records, an inbox, messaging, and casework management together. Nexus also offers an Outlook add-in that checks constituent residency, generates AI-enabled responses, and summarizes past interactions; the add-in is approved for Microsoft 365. A mobile app supports capturing constituent interactions in the field in real time. Parthenon lists city councils, county commissions, school boards, state legislatures, and the U.S. Congress among its customers. The Reach 1k plan costs $19 a month, billed monthly, and covers up to 1,000 contacts with one user license; a .gov email is required. SMS is a 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.
Good
- Reach supports newsletters, alerts, press releases, and SMS
- Nexus combines records, messaging, inbox, and casework
- Mobile app captures interactions in the field
- 14-day trial available
Watch out
- No free plan
- SMS add-on has platform fees and usage-based credits
- Sending SMS requires 10DLC number registration with FCC
Who it suits
Parthenon is aimed at elected officials and public bodies handling constituent records, casework, and outreach. Its listed customer groups include councils, commissions, school boards, legislatures, and Congress.
Verdict
Parthenon brings constituent communications and casework tools into a cloud platform for elected offices. Consider the contact and user limits, .gov email requirement, and separate SMS costs when choosing a Reach plan.
Plans and prices
From Parthenon's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Reach 1k | $19 a month | up to 1,000 contacts · one user license · SMS add-on · .gov email required · billed monthly |
| Reach 2.5k | $45 a month | up to 2,500 contacts · one user license · SMS add-on · .gov email required · billed monthly |
| Reach 5k | $99 a month | up to 5,000 contacts · one user license · SMS add-on · .gov email required · billed monthly |
| Reach 10k | $135 a month | up to 10,000 contacts · two user licenses · SMS add-on · .gov email required · billed monthly |
| Reach 15k | $219 a month | up to 15,000 contacts · two user licenses · SMS add-on · .gov email required · billed monthly |
| Reach 20k | $285 a month | up to 20,000 contacts · two user licenses · SMS add-on · .gov email required · billed monthly |
| Reach 25k | $310 a month | up to 25,000 contacts · three user licenses · SMS add-on · .gov email required · billed monthly |
| Reach 30k | $350 a month | up to 30,000 contacts · three user licenses · SMS add-on · .gov email required · billed monthly |
| Reach 40k | $429 a month | up to 40,000 contacts · three user licenses · SMS add-on · .gov email required · billed monthly |
| Reach 50k | $515 a month | up to 50,000 contacts · three user licenses · SMS add-on · .gov email required · billed monthly |
The facts
Each one read from Parthenon's own pages, with the date it was checked.
What it does
- AI
- Microsoft's certification record says AI is part of the app's core workflows.checked 15 Oct 2026
- AI inbox
- Nexus offers an Outlook add-in that validates constituent residency, generates AI-enabled responses, and summarizes past interactions.checked 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.checked 15 Oct 2026
- Audience
- Parthenon lists city councils, county commissions, school boards, state legislatures, and U.S. Congress among its customers.checked 8 Oct 2026
- Audience management
- Nexus lets offices build subscriber lists, segment audiences and target groups using voter-file information.checked 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.checked 15 Oct 2026
- Data processed
- The certified app processes Outlook inbox email addresses and stores sender and message-content information in U.S. databases.checked 15 Oct 2026
- Email analytics
- Reach reports opens, clicks, unsubscribes and SMS responses in one view.checked 15 Oct 2026
- Email editor
- Reach provides reusable content blocks and a template library for composing newsletters and alerts.checked 15 Oct 2026
- Hosting model
- Microsoft's certification record describes Parthenon as SaaS hosted on Amazon Web Services.checked 15 Oct 2026
- Industry event
- The League of California Cities 2025 conference program lists Parthenon Labs as an exhibitor at booth 650.checked 15 Oct 2026
- Integrations
- Nexus integrates with Outlook through a Microsoft 365-approved add-in.checked 8 Oct 2026
- Licence
- The terms identify the software, services and documentation as Company intellectual property and prohibit copying, modification, reverse engineering and redistribution.checked 15 Oct 2026
- Limit: eligibility
- Reach signup requires a .gov email address on every published tier.checked 15 Oct 2026
- Limit: SMS pricing
- SMS is an add-on with a platform fee and usage-based credits rather than an included Reach plan feature.checked 15 Oct 2026
- Nexus
- Nexus combines constituent records, inbox handling, messaging and casework management.checked 15 Oct 2026
The company
- Company
- The company identifies itself as Parthenon Labs Incorporated and names Josh Billigmeier and Nick Consler as co-founders.checked 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.checked 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.checked 15 Oct 2026
- Data ownership
- Nexus states that government customers retain ownership of their data and that data is hosted in the United States.checked 15 Oct 2026
- Founded
- Parthenon's public pages say the founders started the company in the period before its November 2024 launch story, but do not state a precise incorporation year.checked 15 Oct 2026
- Headquarters
- Austin, Texas, United Stateschecked 28 Sep 2026
Where it runs
- Limit: SMS approval
- SMS onboarding requires FCC 10DLC registration, which Parthenon says typically takes two to three weeks.checked 15 Oct 2026
- Mobile app
- Nexus includes a mobile app for recording constituent interactions during events, meetings and field work.checked 15 Oct 2026
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