Platform overview
Apartments.com combines a consumer rental marketplace with a browser-based suite for landlords. Its business roots trace to Visual Properties in 1992, while the Apartments.com-branded website launched in 1998; the two dates describe different milestones. CoStar acquired the business in April 2014 for approximately $585 million, with the subsequent filing recording an adjusted $584.2 million purchase price. The approximately $12.34 billion public market capitalization belongs to the entire CoStar Group, not this individual website. S004S005S001
The clearest dated commercial footprint found was 89,275 paying properties at December 31, 2025. This is an advertising-property metric, not a verified count of customers using Rental Manager, residential units operated through the software, or individual tenants. One advertised community can contain many apartments, and free landlord-tool users can fall outside that paying-property population. Standalone cumulative venture funding and current unique tenant counts were not verified, so the dataset leaves their numeric fields empty rather than extrapolating. S007S006
Landlords can advertise vacancies, receive applications, obtain screening reports, prepare or manage electronic leases, and collect rent through the online service. Maintenance and expense tools extend the workflow beyond finding the next occupant. For renters, the public marketplace supplies property-search and inquiry functions that a back-office accounting package does not inherently provide. Its strongest analytical fit is a landlord seeking an integrated discovery-to-rent-collection workflow, while larger managers should separately evaluate accounting depth, advertising contracts and integration requirements. S008
The platform has a public website and a working landlord web application that can also be used through a mobile browser. Native iOS and Android applications exist, but the official help center says these apps are for renters rather than landlords. Consequently, an app-store presence should not be interpreted as a native mobile property-management console. Renters can use the search app to explore available homes, while applications, payments and other account services depend on the participating property and the appropriate online workflow. S009S010S008
Basic landlord tools have no monthly software subscription charge, but the overall rental process is not entirely free to every participant. Applicants pay $32 plus applicable tax for screening, reusable with up to ten participating landlords over 30 days. Bank-account payments are free, while renter card and Google Pay transactions carry a 2.75 percent fee. Paid advertising remains a separate commercial product, so a buyer should compare advertising spend and renter-facing charges rather than equating a zero-dollar software plan with zero total cost. S012S011S008
Features & workflow fit
Rental discovery marketplace and landlord tools. Primarily US-facing; international scope depends on product.
- Rental listings
- applicant screening
- electronic leasing
- rent collection
- maintenance requests
- expense tracking
- Property discovery
- Consumer rental marketplace with property search and landlord inquiries
- Typical customer
- Independent landlords using self-service tools; professional managers buying rental advertising
- Material limitations
- Do not substitute the free rental tools for a demonstrated enterprise accounting implementation; parent value does not price the individual product.
Pricing, fees & commitments
- Pricing model
- Free basic landlord tools; optional paid advertising and transaction services
- Pricing tiers
- Basic landlord tools $0; paid multifamily advertising quoted separately
- Starting monthly (usd)
- $0
- Month-to-month starting price (USD)
- Not disclosed / not verified; see related status notes.
- Starting per-unit monthly rate (USD)
- Not disclosed / not verified; see related status notes.
- Minimum monthly charge (USD)
- Not disclosed / not verified; see related status notes.
- Minimum units
- Not disclosed / not verified; see related status notes.
- Minimum spend note
- Not disclosed / not verified; see related status notes.
- Screening fee note
- Applicant pays $32 plus tax; up to ten participating landlords within 30 days
- Payment fee note
- ACH free; renter card/Google Pay fee 2.75%
- Trial note
- Not disclosed / not verified; see related status notes.
- Contract setup note
- Advertising contracts and optional paid products have separate terms
- Pricing verified date
- 2026-09-14
Website, apps & resident access
- Website url
- https://www.apartments.com/rental-manager
- Website available
- Yes
- Web app available
- Yes
- Ios app available
- Yes
- Ios app names
- Apartments.com Rental Finder (renter search)
- Android app available
- Yes
- Android app names
- Apartments.com rental-search app (renter-facing)
- Manager mobile access
- Responsive mobile web; official native apps are renter-facing, not a native landlord-management app
- Resident web access
- Online applications and rent payments at participating properties
Customers, properties, units & residents
These are separate operating populations. No unit count is converted into a tenant estimate.
| Metric | Reported figure, definition & date |
|---|---|
| Customers | Not disclosedUnique Rental Manager landlord accounts not separately disclosed Sources S007 |
| Operational properties | Not disclosedNot publicly disclosed / not verified Sources S007 |
| Advertising properties | 89,275Paying advertising properties; not operationally managed buildings · 2025-12-31 Sources S007 |
| Active rental listings | Not disclosedNot verified as a separate numeric population Sources S007 |
| Units | Not disclosedRental Manager operational units not separately disclosed Sources S007 |
| Leases | Not disclosedNot verified as a separate numeric population Sources S007 |
| Residents / tenants | Not disclosedNot publicly disclosed / not verified; units are not converted to people Sources S007 |
Advertised properties can contain many units. Paid advertising customers are not the same population as free landlord-tool users.
Company history, value & funding
| Financial reference | Value and scope |
|---|---|
| Public company / parent market cap | $12.34BWhole CoStar Group; no standalone Apartments.com market cap · snapshot 2026-09-12 · not live Sources S001, S005, S006 |
| Historical transaction / valuation | $584.2MAdjusted acquisition purchase price · 2014-04-01 · Completed historical deal; headline announced price approximately $585M Sources S001, S005, S006 |
| Disclosed financing | Not disclosedStandalone cumulative VC financing not verified; corporate-owned since 2014 Undisclosed does not mean zero. Acquisition and IPO proceeds are not automatically venture funding. Sources S006 |
| Reported exit target | Not recordedAn exit target is not a completed valuation |
- Founded year
- 1992
- Founding basis
- Original Visual Properties business; Apartments.com branded site launched in 1998
- Product launch year
- 1998
- Age years approx
- 34
- Age method
- 2026 minus founding year; approximate calendar-year age, not completed-anniversary age
- Investors
- Not disclosed / not verified; see related status notes.
- Latest disclosed round (usd)
- Not disclosed / not verified; see related status notes.
- Latest disclosed round date
- Not disclosed / not verified; see related status notes.
- Latest disclosed round type
- Not disclosed / not verified; see related status notes.
- Funding confidence
- Not disclosed / not verified; see related status notes.
- Funding warning
- Undisclosed does not mean zero. Acquisition and IPO proceeds are not automatically venture funding.
- Valuation warning
- Current equity market cap, historical deal value, funding and exit targets are not interchangeable.
Source trail & evidence limits
Do not substitute the free rental tools for a demonstrated enterprise accounting implementation; parent value does not price the individual product. Advertised properties can contain many units. Paid advertising customers are not the same population as free landlord-tool users.
Inspect all 126 original CSV fields for this platform
Original field names and values are preserved. Blank cells are shown with their unknown-value policy; the downloadable CSV remains unchanged.
| Original field | Original value |
|---|---|
| project | TenantPlatform.com |
| research_as_of | 2026-09-14 |
| selection_order | 1 |
| platform_id | apartments_com |
| platform | Apartments.com Rental Manager |
| corporate_group | CoStar Group |
| ownership_status | Public-parent subsidiary |
| category | Rental discovery marketplace and landlord tools |
| selection_basis | Major-platform editorial shortlist based on documented financial importance, operating scale, longevity and rental-workflow relevance; not a universal global top-ten ranking |
| geography | Primarily US-facing; international scope depends on product |
| website_url | https://www.apartments.com/rental-manager |
| founded_year | 1992 |
| founding_basis | Original Visual Properties business; Apartments.com branded site launched in 1998 |
| product_launch_year | 1998 |
| age_years_approx | 34 |
| age_rank_oldest_first | 4 |
| age_method | 2026 minus founding year; approximate calendar-year age, not completed-anniversary age |
| currency | USD |
| publicly_traded_entity | CoStar Group, Inc. |
| ticker | CSGP |
| exchange | NASDAQ |
| public_market_cap_rank | 1 |
| public_market_cap_usd | 12340000000 |
| public_market_cap_scope | Whole CoStar Group; no standalone Apartments.com market cap |
| market_cap_source_snapshot | 2026-09-12 |
| market_cap_status | Delayed sourced public-company/parent snapshot; not live September 14 quote |
| historical_value_usd | 584200000 |
| historical_value_date | 2014-04-01 |
| historical_value_type | Adjusted acquisition purchase price |
| historical_value_status | Completed historical deal; headline announced price approximately $585M |
| reported_exit_target_usd | Not disclosed / not applicable / not verified |
| reported_exit_target_date | Not disclosed / not applicable / not verified |
| reported_exit_target_status | Not disclosed / not applicable / not verified |
| valuation_warning | Current equity market cap, historical deal value, funding and exit targets are not interchangeable. |
| verified_vc_total_usd | Not disclosed / not applicable / not verified |
| disclosed_funding_sum_usd | Not disclosed / not applicable / not verified |
| funding_status | Standalone cumulative VC financing not verified; corporate-owned since 2014 |
| latest_disclosed_round_usd | Not disclosed / not applicable / not verified |
| latest_disclosed_round_date | Not disclosed / not applicable / not verified |
| latest_disclosed_round_type | Not disclosed / not applicable / not verified |
| investors | Not disclosed / not applicable / not verified |
| funding_confidence | Not disclosed / not applicable / not verified |
| funding_warning | Undisclosed does not mean zero. Acquisition and IPO proceeds are not automatically venture funding. |
| customers_count | Not disclosed / not applicable / not verified |
| customers_operator | Not disclosed / not applicable / not verified |
| customers_definition | Not disclosed / not applicable / not verified |
| customers_as_of | Not disclosed / not applicable / not verified |
| customer_count_status | Unique Rental Manager landlord accounts not separately disclosed |
| operational_property_count | Not disclosed / not applicable / not verified |
| operational_property_operator | Not disclosed / not applicable / not verified |
| operational_property_definition | Not disclosed / not applicable / not verified |
| operational_property_as_of | Not disclosed / not applicable / not verified |
| operational_property_count_status | Not publicly disclosed / not verified |
| advertising_property_count | 89275 |
| advertising_property_definition | Paying advertising properties; not operationally managed buildings |
| advertising_property_as_of | 2025-12-31 |
| active_rental_listings_count | Not disclosed / not applicable / not verified |
| active_rental_listings_definition | Not disclosed / not applicable / not verified |
| active_rental_listings_as_of | Not disclosed / not applicable / not verified |
| units_count | Not disclosed / not applicable / not verified |
| units_operator | Not disclosed / not applicable / not verified |
| units_definition | Not disclosed / not applicable / not verified |
| units_as_of | Not disclosed / not applicable / not verified |
| units_evidence | Not disclosed / not applicable / not verified |
| units_count_status | Rental Manager operational units not separately disclosed |
| leases_count | Not disclosed / not applicable / not verified |
| leases_definition | Not disclosed / not applicable / not verified |
| leases_as_of | Not disclosed / not applicable / not verified |
| tenants_residents_count | Not disclosed / not applicable / not verified |
| tenants_residents_operator | Not disclosed / not applicable / not verified |
| tenants_residents_definition | Not disclosed / not applicable / not verified |
| tenants_residents_as_of | Not disclosed / not applicable / not verified |
| tenant_count_status | Not publicly disclosed / not verified; units are not converted to people |
| scale_comparability_note | Advertised properties can contain many units. Paid advertising customers are not the same population as free landlord-tool users. |
| overlap_note | Not disclosed / not applicable / not verified |
| website_available | Yes |
| web_app_available | Yes |
| ios_app_available | Yes |
| android_app_available | Yes |
| manager_mobile_access | Responsive mobile web; official native apps are renter-facing, not a native landlord-management app |
| ios_app_names | Apartments.com Rental Finder (renter search) |
| android_app_names | Apartments.com rental-search app (renter-facing) |
| resident_web_access | Online applications and rent payments at participating properties |
| native_app_role_caveat | iOS/Android Yes describes the renter-search ecosystem; native landlord app is not available per official help. |
| features | Rental listings; applicant screening; electronic leasing; rent collection; maintenance requests; expense tracking |
| property_discovery | Consumer rental marketplace with property search and landlord inquiries |
| typical_customer | Independent landlords using self-service tools; professional managers buying rental advertising |
| pricing_verified_date | 2026-09-14 |
| pricing_model | Free basic landlord tools; optional paid advertising and transaction services |
| starting_monthly_usd | 0 |
| month_to_month_starting_usd | Not disclosed / not applicable / not verified |
| starting_per_unit_monthly_usd | Not disclosed / not applicable / not verified |
| starting_price_basis | Basic self-service landlord tools, not all advertising products |
| minimum_units | Not disclosed / not applicable / not verified |
| minimum_monthly_usd | Not disclosed / not applicable / not verified |
| minimum_spend_note | Not disclosed / not applicable / not verified |
| pricing_tiers | Basic landlord tools $0; paid multifamily advertising quoted separately |
| screening_fee_usd | 32 |
| screening_fee_note | Applicant pays $32 plus tax; up to ten participating landlords within 30 days |
| payment_fee_note | ACH free; renter card/Google Pay fee 2.75% |
| trial_note | Not disclosed / not applicable / not verified |
| contract_setup_note | Advertising contracts and optional paid products have separate terms |
| material_limitations | Do not substitute the free rental tools for a demonstrated enterprise accounting implementation; parent value does not price the individual product. |
| data_quality_summary | Do not substitute the free rental tools for a demonstrated enterprise accounting implementation; parent value does not price the individual product. Advertised properties can contain many units. Paid advertising customers are not the same population as free landlord-tool users. |
| description_p1 | Apartments.com combines a consumer rental marketplace with a browser-based suite for landlords. Its business roots trace to Visual Properties in 1992, while the Apartments.com-branded website launched in 1998; the two dates describe different milestones. CoStar acquired the business in April 2014 for approximately $585 million, with the subsequent filing recording an adjusted $584.2 million purchase price. The approximately $12.34 billion public market capitalization belongs to the entire CoStar Group, not this individual website. [S004, S005, S001] |
| description_p2 | The clearest dated commercial footprint found was 89,275 paying properties at December 31, 2025. This is an advertising-property metric, not a verified count of customers using Rental Manager, residential units operated through the software, or individual tenants. One advertised community can contain many apartments, and free landlord-tool users can fall outside that paying-property population. Standalone cumulative venture funding and current unique tenant counts were not verified, so the dataset leaves their numeric fields empty rather than extrapolating. [S007, S006] |
| description_p3 | Landlords can advertise vacancies, receive applications, obtain screening reports, prepare or manage electronic leases, and collect rent through the online service. Maintenance and expense tools extend the workflow beyond finding the next occupant. For renters, the public marketplace supplies property-search and inquiry functions that a back-office accounting package does not inherently provide. Its strongest analytical fit is a landlord seeking an integrated discovery-to-rent-collection workflow, while larger managers should separately evaluate accounting depth, advertising contracts and integration requirements. [S008] |
| description_p4 | The platform has a public website and a working landlord web application that can also be used through a mobile browser. Native iOS and Android applications exist, but the official help center says these apps are for renters rather than landlords. Consequently, an app-store presence should not be interpreted as a native mobile property-management console. Renters can use the search app to explore available homes, while applications, payments and other account services depend on the participating property and the appropriate online workflow. [S009, S010, S008] |
| description_p5 | Basic landlord tools have no monthly software subscription charge, but the overall rental process is not entirely free to every participant. Applicants pay $32 plus applicable tax for screening, reusable with up to ten participating landlords over 30 days. Bank-account payments are free, while renter card and Google Pay transactions carry a 2.75 percent fee. Paid advertising remains a separate commercial product, so a buyer should compare advertising spend and renter-facing charges rather than equating a zero-dollar software plan with zero total cost. [S012, S011, S008] |
| history_source_ids | S004 |
| valuation_source_ids | S001; S005; S006 |
| funding_source_ids | S006 |
| scale_source_ids | S007 |
| features_source_ids | S008 |
| apps_source_ids | S009; S010 |
| pricing_source_ids | S008; S011; S012 |
| risk_source_ids | Not disclosed / not applicable / not verified |
| all_source_ids | S004; S001; S005; S006; S007; S008; S009; S010; S011; S012 |
| history_source_urls | https://www.inman.com/2004/07/08/world-online-apartment-hunting/ |
| valuation_source_urls | https://companiesmarketcap.com/costar-group/marketcap/ | https://www.sec.gov/Archives/edgar/data/1057352/000105735215000012/csgp-10k_20141231.htm | https://www.prnewswire.com/news-releases/classified-ventures-llc-announces-close-of-apartmentscom-sale-to-costar-group-inc-253435461.html |
| funding_source_urls | https://www.prnewswire.com/news-releases/classified-ventures-llc-announces-close-of-apartmentscom-sale-to-costar-group-inc-253435461.html |
| scale_source_urls | https://www.alphaspread.com/de/security/nasdaq/csgp/investor-relations/earnings-call/q4-2025 |
| features_source_urls | https://www.apartments.com/rental-manager |
| apps_source_urls | https://propertyhelp.apartments.com/article/82-does-apartments-com-have-a-mobile-app | https://apps.apple.com/ca/app/apartments-com-rental-finder/id319836632 |
| pricing_source_urls | https://www.apartments.com/rental-manager | https://propertyhelp.apartments.com/article/755-are-there-any-fees-with-collecting-or-paying-rent-on-apartments | https://propertyhelp.apartments.com/article/13-applicant-cost |
| risk_source_urls | Not disclosed / not applicable / not verified |