Opensense
Opensense is a cloud-based email signature management platform for Microsoft 365 and Google Workspace, serving mid-market and enterprise brands with centralized signature governance, banner campaigns, engagement analytics, and compliance. It also offers a GCC High solution for defense and federal customers, and distributes through the TD SYNNEX StreamOne MSP channel.
- Company typePrivate
- Founded2013
- HeadquartersSan Francisco, United States
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Opensense does
Opensense is a private SaaS company, incorporated in Delaware as Opensense, Inc. and headquartered in San Francisco, that operates a cloud-based email signature management platform for organizations running on Microsoft 365 and Google Workspace. Founded in 2013 with disclosed funding of $1.5M (Bloomberg Beta, 2013) and $5M (2018), the company has built a product portfolio that spans centralized email signature governance, dynamic banner ad campaigns targeted by role or region, email engagement analytics, regulatory compliance (CAN-SPAM, GDPR, CASL, CCPA), and a specialized Microsoft 365 GCC High solution for defense contractors and federal agencies. Its technical architecture deploys through the Microsoft 365 Integrated App manifest without mail routing, DNS, or SPF changes, completing in under 45 minutes per the company, and integrates with Microsoft Entra ID, Exchange Online, Google Directory, Salesforce, HubSpot, Marketo, Outreach, Salesloft, and Zendesk.
The company monetizes via annual subscription licensing on a quote-based model for mid-market and enterprise customers, supplemented by professional services and high-touch customer success. Distribution combines a direct enterprise sales-led motion (demo requests, case studies, ROI calculator) with channel partnerships through the TD SYNNEX StreamOne cloud marketplace for MSPs (announced April 2026), plus marketplace listings on Microsoft 365 Integrated App and Salesforce AppExchange. Customer segments span a horizontal mix of mid-market and enterprise brands, regulated industries and government (via GCC High), managed service providers, and sales/marketing teams deploying ABM and CRM-triggered campaigns.
The company's differentiation rests on three pillars: regulatory specialization (SOC 2 Type II, FedRAMP High, DFARS, ITAR, CMMC, Microsoft GCC High Ready) claimed as the only U.S.-based platform of its kind for government and defense; deployment simplicity via Microsoft 365 Integrated App; and a layered product surface that converts email signatures into a measurable marketing channel with engagement analytics and digital business cards. With 101-250 employees and 300+ G2 reviews, Opensense operates a capital-efficient, profitability-oriented model rather than a venture-funded hyper-growth trajectory.
Opensense firmographics
Firmographics- Name
- Opensense
- Legal name
- Opensense, Inc.
- Website
- https://opensense.com
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Opensense is a cloud-based email signature management platform for Microsoft 365 and Google Workspace, serving mid-market and enterprise brands with centralized signature governance, banner campaigns, engagement analytics, and compliance. It also offers a GCC High solution for defense and federal customers, and distributes through the TD SYNNEX StreamOne MSP channel.
- Ownership category
- akta.pro rank
Opensense industry classification
Industry- Product category
- Email Signature Management Software
- NAICS
- Software Publishers (5132)
- SIC
- Services-Prepackaged Software (7372), Services-Advertising Agencies (7311)
- akta.pro primary industry
- eSignature, Forms & Digital Workflow Platforms (HDAEAHAJ)
Keywords
Where Opensense is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Opensense business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Marketing or Sales, Infrastructure, Operations
Revenue model
- Subscription Licensing: SaaS subscription model providing centralized email signature management for Microsoft 365 and Google Workspace on a recurring basis. MSPs can resell as a managed service offering.
- Professional Services: Dedicated Customer Success Managers and Technical Contacts for high-touch service and implementation support.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Enterprise subscription with annual billing |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
Opensense product offering
Product offeringCore offering
Opensense is a cloud-based SaaS platform that centrally governs employee email signatures, dynamic banner ad campaigns, digital business cards, engagement analytics, and compliance across Microsoft 365 and Google Workspace. It is deployed by IT in under 45 minutes via a Microsoft 365 Integrated App manifest without mail routing or DNS changes, and is used by marketing and sales teams to run targeted email campaigns and capture engagement signals.
Product overview
Opensense is a unified email signature management and marketing platform that offers a portfolio of integrated products: Email Signatures (centralized signature management for Microsoft 365 and Google Workspace), Email Ad Campaigns (dynamic banner targeting), Email Insights & Analytics (engagement tracking), Email Compliance (regulatory compliance and email security), GCC High Email Signatures (specialized solution for government contractors and regulated industries), Digital Business Cards (branded networking cards), and a free Email Signature Generator. The platform is designed for mid-market to enterprise organizations, with IT deploying in under 45 minutes and marketing managing campaigns independently through a single admin console. Opensense recently expanded into the MSP channel through a TD SYNNEX partnership.
Differentiator
Problem solved
Functional benefit
Products and services
- Email Signatures Centralized control over every employee's email signature with consistent templates enforced at scale across Microsoft 365 and Google Workspace environments, eliminating manual signature updates.
- Email Ad Campaigns Dynamic banners attached to every employee email, targeted by role, region, or campaign and updated instantly from a single centralized admin console.
- Email Insights & Analytics Tracks opens, clicks, and engagement on every employee email including video replays, equipping sales teams with data on buyer behavior for follow-up timing.
- Email Compliance Automated compliance with CAN-SPAM, GDPR, CASL, and CCPA regulations, including email security features such as SPF Proxy and DKIM Signing to enhance deliverability and prevent spoofing.
- GCC High Email Signatures Signature, banner, and tracking solution purpose-built for Microsoft 365 GCC High environments serving government contractors, defense agencies, and highly regulated industries including FedRAMP High, DFARS, ITAR, and CMMC organizations.
- Digital Business Cards Branded, shareable, trackable digital presence cards for every employee that are integrated into email signatures and remain continuously up to date.
- Email Signature Generator Free online tool to design professional email signatures in minutes without coding, ready for Gmail or Outlook.
Quantifiable outcome
- 90%+ reduction in signature-related support tickets
- +1 more outcomes
Companies that use Opensense
Customer profileNamed customers7 records
Segments4 records
Ideal customer profiles3 records
Opensense technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration11 records
Feature6 records
Opensense partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered flagship and core.
- TD SYNNEXflagshipOpensense announced partnership with TD SYNNEX to provide centralized email signature management for the MSP channel. MSPs in TD SYNNEX's North American network can resell Opensense's platform for Microsoft 365 and Google Workspace as a high-margin recurring managed service. Opensense will be available through TD SYNNEX's StreamOne cloud commerce platform, expanding its IT ecosystem portfolio.
- SalesforcecoreOpensense integrates with Salesforce through AppExchange listing, enabling CRM-connected email signature management and campaign triggering based on CRM data.
- HubSpotcoreOpensense is a HubSpot Certified Partner with certified integration allowing campaign triggering based on CRM data and revenue-driving initiatives for marketing teams.
- MarketocoreOpensense is a Marketo LaunchPoint Partner with integration for marketing automation and campaign management.
- Microsoft 365corePrimary platform integration. Opensense is built primarily for Microsoft 365 with deep integration with Microsoft Entra ID, Exchange Online, and M365 Integrated App marketplace.
- Google WorkspacecoreFully supported platform including Google Directory sync, centralized signature management, and analytics.
Scale indicators4 records
Recent moves5 records
Expansion highlights6 records
Opensense competitors and assessment
Company assessmentDirect peers
- Exclaimer: Exclaimer is a leading email signature management platform for Microsoft 365 and Google Workspace, directly competing with Opensense on centralized signature deployment and banner campaigns for mid-market and enterprise customers.
- CodeTwo: CodeTwo provides email signature management and migration tools for Microsoft 365 and Exchange, directly overlapping with Opensense's core signature management offering for enterprises and MSPs.
- Sigstr: Sigstr pioneered email signature banner campaigns for ABM and brand marketing, competing head-to-head with Opensense's Email Ad Campaigns product on the same target buyer (marketing leaders at mid-market and enterprise).
- WiseStamp: WiseStamp offers email signature management with both free consumer and business tiers, competing with Opensense especially in the SMB and prosumer segment that can expand into mid-market.
- Xink: Xink provides centralized email signature management for Microsoft 365 and Google Workspace, directly competing with Opensense in the same IT-deployed signature governance category.
Broad incumbents
- Mimecast: Mimecast is a large email security, archiving, and continuity platform that overlaps with Opensense's compliance and DKIM/SPF security features as part of a broader enterprise email portfolio.
- Proofpoint: Proofpoint is an enterprise cybersecurity incumbent whose email protection, compliance, and governance capabilities can substitute for elements of Opensense's email compliance offering inside large accounts.
- HubSpot Sales Hub: HubSpot's Sales Hub includes email tracking and sales engagement features that overlap with Opensense's Email Insights & Analytics product for marketing and sales teams.
Emerging players
- Apollo.io (Terminus): Apollo (which acquired Terminus/Sigstr) operates an ABM and sales engagement platform that includes email signature-based ad targeting, directly overlapping with Opensense's ABM banner use case.
- Yesware: Yesware provides email tracking, templates, and sales engagement analytics, partially overlapping with Opensense's email engagement analytics and sales insights offerings inside sales-led organizations.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat5 records
Key risks4 records
Key highlights7 records
Customer concentration
Opensense social profiles
Digital presenceOpensense compliance and trust
Trust signalCompliance3 records
Opensense financial estimates
Financial estimateRevenue estimate
Valuation estimate
Opensense leadership team
Management profileNumber of profiles
Profiles3 records
Opensense funding detail
Funding detailFunding overview
Funding rounds2 records
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Opensense M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Opensense
What does Opensense do?
Opensense is a cloud-based SaaS platform that centrally governs employee email signatures, dynamic banner ad campaigns, digital business cards, engagement analytics, and compliance across Microsoft 365 and Google Workspace. It is deployed by IT in under 45 minutes via a Microsoft 365 Integrated App manifest without mail routing or DNS changes, and is used by marketing and sales teams to run targeted email campaigns and capture engagement signals.
Is Opensense a public or private company?
Opensense is a private company. It is classified as venture growth investor backed and is currently operating.
When was Opensense founded?
Opensense was founded in 2013. It employs 1 to 10 people.
Where is Opensense based?
Opensense is headquartered in San Francisco, United States, in the North America region.
How does Opensense make money?
Two revenue lines are on record. Subscription Licensing is the primary driver. The others are professional Services.
Who are Opensense's main competitors?
Direct peers on record are Exclaimer, CodeTwo, Sigstr, WiseStamp and Xink. Broad incumbents are Mimecast, Proofpoint and HubSpot Sales Hub. Emerging players are Apollo.io (Terminus) and Yesware.
Does Opensense have an API?
No public API is recorded for Opensense.
What industry is Opensense in?
Opensense's product category is Email Signature Management Software. Its primary akta.pro industry code is HDAEAHAJ, eSignature, Forms & Digital Workflow Platforms. Its NAICS code is 5132 and its SIC code is 7372.