What San Diego MLS does

San Diego MLS (SDMLS) is a private Multiple Listing Service founded in 2018 and headquartered in San Diego, California, that operates the regional MLS database for licensed real estate professionals in San Diego County. The organization serves REALTORS, brokers, agents, appraisers, and assistants with comprehensive listing data, market statistics, lockbox services, and reciprocal access across more than 60 California associations. SDMLS also extends data share agreements to CRMLS, CLAW/TheMLS, and MLSListings, giving subscribers visibility into a broad cross-section of California inventory.

The platform is built on Paragon MLS software paired with Paragon Connect for mobile access, and SDMLS transitioned in 2025–2026 to an API-first architecture delivered through the MLS Router API (a RESO Web API 2.0 and Data Dictionary 2.0-certified integration by Realtyna). SDMLS holds three RESO certifications (Data Dictionary 2.0, Web API Server Core 2.0.0, Web API Add/Edit 1.0.0) and was a 2025 founding partner of the Global Data Exchange alongside Stellar MLS, TRREB, SNPI, and ADRES. The product surface spans IDX, VOW, and Broker Back Office feeds; CubiCasa floor plans; Zeta Global-powered Listing Ads; SentriLock and SUPRA electronic lockbox services; and AB 723 digitally altered image compliance tools enforceable across MLS, IDX, VOW, API, and syndication feeds.

SDMLS monetizes through a layered subscription and fee model: quarterly MLS subscriptions ($179/quarter for REALTORS, $45 for assistants) plus application fees ($35–$250), $155 per-listing input fees, and tiered monthly vendor access ($40 IDX, $50 VOW, $349 base vendor fee, $99 AI Training per client, $199 Publisher per client). Distribution runs through direct subscriptions, the MLS Router API, IDX vendor partners (iHomefinder, Luxury Presence), and a Google home listings integration via HouseCanary. Leadership is anchored by CEO Saul Klein, and SDMLS operates from 4849 Ronson Court, Suite 216, San Diego, CA 92111 with an adjacent training academy in Suite 111A.

Name

San Diego MLS

Legal name

San Diego MLS (SDMLS)

Website

https://sdmls.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

San Diego MLS is a private regional Multiple Listing Service founded in 2018 that provides licensed San Diego County REALTORS, brokers, agents, appraisers, and assistants with the Paragon-based MLS database, MLS Router API data feeds, lockbox services, and reciprocal California access.

Ownership category

akta.pro rank

Headquarters

HQ city

San Diego

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. MLS Subscription Access: Quarterly subscription fees charged to subscribers for access to the SDMLS database. Pricing varies by subscriber type: REALTORS at $179/quarter, Assistants at $45/quarter, with Sentrilock lockbox access add-ons at $125-150 per period.
2. New Subscriber Application Fees: One-time application fees charged to new subscribers: $50 for reciprocal subscribers, $35 for Agents/Assistants/Appraisers, $250 for Brokers.
3. Listing Input Fees: Fees charged for listing input at $155 per listing.
4. Vendor Data Access Fees: Monthly vendor fees for technology providers accessing SDMLS data: $40/month for IDX Feed API, $50/month for VOW Feed API, $349/month Vendor Access Fee, plus per-client fees for AI Training ($99/month) and Publisher use ($199/month).
5. AI and Publisher Data Access: Additional data access tiers for AI training use ($99/month per client) and publisher use ($199/month per client), plus tiered access for small vendors serving 1-2 clients.
6. Sentrilock/SUPRA Lockbox Services: Electronic lockbox system (Sentrilock) with annual access fees billed directly by Sentrilock. SUPRA eKey service with $50 activation plus $21.24/month recurring subscription.

Pricing tiers

Distribution channels6 records

Marketing channels8 records

Core offering

San Diego MLS operates a comprehensive Multiple Listing Service database and platform for licensed real estate professionals in the San Diego area. The core offering is the Paragon MLS platform (with Paragon Connect mobile companion) that provides listing input, search, market statistics, and collaboration tools, complemented by the MLS Router API for real-time, RESO-certified data distribution to IDX/VOW/BBO vendors. Additional services include electronic lockbox access (Sentrilock/SUPRA), CubiCasa floor plans, Zeta Global-powered Listing Ads, and AB 723 compliance tooling.

Product overview

San Diego MLS operates as a unified MLS platform combining a core listing database with integrated modules and add-on services. The primary platform consists of Paragon (MLS software) and Paragon Connect (mobile companion), supported by MLS Router API for third-party data access. Add-on modules include IDX/VOW/BBO feeds for data distribution, SentriLock electronic lockboxes, CubiCasa floor plans, Coming Soon status listings, and Listing Ads (powered by Zeta Global). Compliance tools address AB 723 digitally altered images and NAR Settlement requirements. The platform also provides market stats, training classes, and reciprocal MLS access across California.

Differentiator

Problem solved

Functional benefit

Products and services

• San Diego MLS (SDMLS) Platform The core Multiple Listing Service database platform providing comprehensive San Diego-area real estate listing data, market statistics, and collaboration tools for licensed real estate professionals.
• Paragon MLS Platform Primary MLS software platform used by SDMLS for listing management, search, and data entry. The main interface for subscribers to manage property listings.
• Paragon Connect Mobile companion application for Paragon MLS platform enabling agents to access listing data, manage properties, and work on-the-go.
• MLS Router API RESO Web API 2.0-certified data access platform providing real-time MLS listing data via API to vendors and technology partners. Supports IDX, VOW, and Broker Back Office feeds with OAuth 2.0 authentication.
• SentriLock Electronic Lockbox Service Electronic lockbox system with Bluetooth-enabled SentriKey app providing secure property access management for showing appointments in San Diego County.
• SUPRA eKey Electronic Lockbox Service SUPRA eKey electronic lockbox service providing smartphone-based property access across Southwest Riverside, Orange County, Los Angeles, and Southern San Bernardino areas. Requires $50 activation plus $21.24/month subscription.
• Market Statistics Service Real estate market data and trend analysis tools providing statistical insights for SDMLS subscribers on the San Diego housing market.
• CubiCasa Floor Plans Service Mobile floor plan scanning service producing detailed floor plans from five-minute property scans. Free for SDMLS subscribers on properties up to 5,000 sq ft, with 25% discount on Plus packages and complimentary hosted floor plans.
• Listing Ads (Zeta Global) Automated social media advertising feature powered by Zeta Global, creating Facebook and Instagram ads directly from Paragon listing data with agent preview and campaign management.
• Training Classes Service Live and recorded training classes for SDMLS platform including Paragon, Paragon Connect, AB 723 requirements, NAR Settlement changes, and industry compliance topics.

Quantifiable outcome

• SDMLS is one of four MLSs integrated with Google's national home listings via HouseCanary, providing participating brokerages' listings directly in Google search results on mobile devices at no additional cost.
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability2 records

Feature5 records

Partnerships

13 partnerships are on record, tiered core and minor.

• Global Data Exchange (GDX) - Founding Partners (Stellar MLS, TRREB, SNPI, ADRES)coreStrategic or Co-development Partner · 25 September 2025SDMLS is one of five inaugural signatories of the Global Data Exchange (GDX), launched at the 2025 International MLS Forum in Toronto. The GDX is designed to unify real estate data sharing across international borders using RESO standards. SDMLS joins Stellar MLS (USA), Toronto Regional Real Estate Board (TRREB, Canada), SNPI (France), and ADRES (Abu Dhabi) as founding partners, setting a new standard for cross-border MLS collaboration.
• CubiCasacoreTechnology or Integration · 1 July 2024CubiCasa is a mobile app partnership providing free floor plans (up to 5,000 sq ft) for all SDMLS subscribers effective July 1, 2024. The partnership includes 25% discount on Plus packages, appraisal-grade GLA floor plans, 6-hour rush delivery, and 3D products. An update added Hosted Floor Plans as a complimentary bonus feature accessible via unique URL.
• MLS Router (Realtyna)coreTechnology or IntegrationMLS Router is the industry-leading platform (by Realtyna) enabling secure, high-performance, standards-compliant MLS data distribution for SDMLS. It provides real-time queries, OAuth 2.0 authentication, and automated billing through the MLS Router Vendor Dashboard. SDMLS transitioned to MLS Router API as its primary data access solution, replacing legacy RETS integrations.
• HouseCanary (ComeHome.com)coreGTM or Marketing PartnerSDMLS participates in HouseCanary's ComeHome.com platform integration with Google home listings, enabling participating brokerages' listings to appear directly in Google search results on mobile devices at no additional cost. SDMLS is one of four MLSs (alongside California Regional MLS, Bright MLS, and My State MLS) signed to provide Google with listing data. Google expanded this advertising program nationwide in early June 2026 after testing since December 2025.
• Bright MLSminorStrategic or Co-development PartnerBright MLS was mentioned alongside SDMLS as one of the four MLS providers in the Google home listings integration via HouseCanary. Both are regional MLSs participating in the same national listing distribution initiative.
• California Regional MLSminorStrategic or Co-development PartnerCalifornia Regional MLS is one of the four MLS providers in the Google home listings integration via HouseCanary, alongside SDMLS, Bright MLS, and My State MLS.
• CRMLS (California Regional MLS)coreTechnology or IntegrationSDMLS has a data share agreement with CRMLS, allowing CRMLS listings to be seamlessly integrated into SDMLS's Paragon platforms and giving subscribers direct access to a wider range of properties across California.
• CLAW/TheMLS (Combined LA/Westside)coreTechnology or IntegrationSDMLS has a data share agreement with CLAW/TheMLS, integrating their listings into SDMLS's Paragon platform and expanding subscriber access to Southern California properties.
• MLSListings (Northern California)coreTechnology or IntegrationSDMLS has a data share agreement with MLSListings covering associations of Central Valley, Santa Clara, Santa Cruz, Silicon Valley, San Mateo, Monterey, Pajaro Valley, and San Benito, providing cross-regional listing access.
• iHomefinderminorChannel Partner/ Reseller/ DistributoriHomefinder is an approved IDX vendor partner of SDMLS providing accessible IDX tools that give agents exclusive access to attract leads, close deals, and grow their business through SDMLS listing data on agent websites.
• Luxury PresenceminorChannel Partner/ Reseller/ DistributorLuxury Presence is an approved SDMLS IDX vendor partner offering award-winning websites and professional marketing tools for top agents. The platform boosts agents with premium websites powered by SDMLS listing data.
• SentriLockcoreTechnology or IntegrationSDMLS uses SentriLock as its electronic lockbox system in San Diego County, offering Bluetooth-enabled lockboxes and the SentriKey app for secure property access management. SentriLock's services are billed annually directly to subscribers.
• CDAR (California Desert Association of REALTORS)minorChannel Partner/ Reseller/ DistributorCDAR provides guest login access to SDMLS subscribers through the Neighboring MLS Information page, covering the Coachella Valley from Palm Springs to Indio.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• California Regional MLS (CRMLS): CRMLS is the largest MLS in California and has a data share agreement with SDMLS. It overlaps directly in the same California geography and serves similar REALTOR members with comparable listing data, IDX, and VOW services.
• Bright MLS: Bright MLS is a large regional MLS covering the Mid-Atlantic US and is one of the four MLS providers participating in Google's home listings integration via HouseCanary alongside SDMLS. It faces similar technology, compliance, and member-driven challenges as a regional MLS organization.
• Stellar MLS: Stellar MLS is a Florida-based regional MLS and a founding partner of the Global Data Exchange (GDX) alongside SDMLS. It serves a similar REALTOR subscriber base with comparable MLS database, IDX/VOW feeds, and technology enablement.
• Toronto Regional Real Estate Board (TRREB): TRREB is the dominant MLS serving the Greater Toronto Area and a founding GDX partner with SDMLS. It operates a similar REALTOR-facing MLS platform with API-based data distribution and serves a comparable real estate professional member base.
• MLSListings: MLSListings is a Northern California MLS covering Silicon Valley, San Mateo, and surrounding counties, with an active data share agreement with SDMLS. It serves the same REALTOR member persona with similar listing database and RESO-certified API access.
• CLAW / TheMLS (Combined LA/Westside): CLAW/TheMLS serves the greater Los Angeles area and is a data share partner of SDMLS. It provides a comparable MLS database experience, IDX/VOW feeds, and reciprocal access to California real estate professionals.
• My State MLS: My State MLS is one of the four MLS providers for Google home listings via HouseCanary alongside SDMLS. It serves a similar REALTOR subscriber base with comparable MLS data distribution services and technology vendor partnerships.

Others

• HouseCanary (ComeHome.com): HouseCanary is the technology partner that integrates SDMLS (and other MLS) data into Google Search home listings. While not a direct MLS competitor, it is a key distribution intermediary and parallel-shaped real estate data platform serving overlapping real estate professional use cases.
• Realtyna (MLS Router): Realtyna operates MLS Router, the core API platform SDMLS uses to deliver IDX, VOW, AI, and Publisher data to vendors. It is a key technology enabler for SDMLS and serves comparable MLS organizations with similar data distribution infrastructure.
• CubiCasa: CubiCasa is a mobile floor plan scanning partner integrated into SDMLS's Paragon platform. It serves a complementary role in the MLS data ecosystem, providing property visualization add-ons to MLS subscribers via partnerships with multiple MLSs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/realtorsdmls
• LinkedInlinkedin.com/company/sdmls

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 San Diego MLS