CoStar Group | Company Profile, Culture & Jobs

CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; and Homes.com, the fastest-growing residential real estate marketplace. CoStar Group’s industry-leading brands also include Matterport, a leading spatial data company whose platform turns buildings into data to make every space more valuable and accessible, STR, a global leader in hospitality data and benchmarking, Ten-X, an online platform for commercial real estate auctions and negotiated bids and OnTheMarket, a leading residential property portal in the United Kingdom. CoStar Group’s websites attracted over 134 million average monthly unique visitors in the fourth quarter of 2024, serving clients around the world. Headquartered in Arlington, Virginia, CoStar Group is committed to transforming the real estate industry through innovative technology and comprehensive market intelligence. From time to time, we plan to utilize our corporate website as a channel of distribution for material company information. For more information, visit CoStarGroup.com.

Founded in 1987

Arlington, Virginia, US

9.6K employees (1,368 in marketing)

www.costargroup.com

55% recommend to a friend

58% positive business outlook

People

Marketing leadership

Chris Mumford

Chief Marketing Officer - Marketplaces

At the company for 2 years 3 months

Ratish Naroor

Vice President of Growth (SEO/SEM)

At the company for 1 year 2 months

Matt Blocher

Vice President, Head of Product Marketing + Corporate Marketing & Communications

At the company for 7 years 9 months

Tod Kuwahara

Vice President SEO & SEM

At the company for 10 years 8 months

Hiring activity

Open marketing jobs over time

34 open now

Headcount trend

Company growth over the last 12 months

Audience

Monthly website visitors

2.1M

Month over month-18.7%

Quarter over quarter-22.2%

Top sourceDirect (57.8%)

Ad budget per month$33.4

Average search rank57.7

Traffic source mix

Direct

57.8%

Search

31.5%

News

Strong Results Lifted CoStar Group. (CSGP) in Q3

Dec 4, 2025 • Yahoo Finance

Wells Fargo Remains Cautious on CoStar Group (CSGP) but Sees Rival Lawsuits as Neutral to Positive News

Nov 25, 2025 • Yahoo Finance

CoStar in line for millions in state, city incentives as it readies new Richmond office tower

Nov 20, 2025 • Richmond BizSense

Links

www.costargroup.com

Crunchbase

X (Twitter)

Glassdoor

CoStar Group insights

Company and marketing-team signals from saved company data and employee profiles. Use this before you apply, interview, or negotiate.

Founded

1987

Headquarters

Arlington, Virginia

Employees

5001-10000

10.4% growth last 12mo

Marketing team

1,368

12% of company

95 saved employee profiles are linked to this company.

Company stability and risk

Shows a quick risk view from growth, funding age, and news.

Main result

Low risk

Seed-stage · Growing 10.4% last 12 months · More mature

Trend

2021-06-28 -> 2025-11-24

Headcount (12 months)

+10.4%

Last funding round

—

Negative news (120 days)

0

Risk score0/7

Website traffic

Shows traffic size, change, and traffic sources.

Monthly website visitors

2.1M

Month over month-18.7%

Quarter over quarter-22.2%

Top sourceDirect (57.8%)

Traffic source mix

Direct

57.8%

Search

31.5%

Referral

Competitors and search

Shows competitors and key search metrics in one view.

Main result

48 competitor sites

Search traffic: 39.1K organic clicks / 0 paid clicks

Organic competitors

0

Paid competitors

1

Keyword change

+1,399

Ad budget per month

$33.4

Average search rank

57.7

Paid competitors1

LinkedIn followers

Shows follower count and growth.

LinkedIn followers

Follower count and growth

Job openings

Shows open jobs, growth, and role changes.

Main result

1 open jobs

Open jobs trend: —

Trend

Marketing team size

Shows saved marketing team size.

1,368

12% of the company • 95 saved marketing people

First hire or larger team

Shows if this looks like one hire or a bigger team.

Looks like larger team

Based on saved marketing team size: 1,368.

Glassdoor ratings

Shows saved Glassdoor ratings.

Glassdoor ratings

Overall rating

3.2 / 5

Work-life balance

2.3 / 5

Culture

2.3 / 5

Diversity & inclusion

3.7 / 5

Recommend to a friend

55%

Positive business outlook

58%

News

Shows saved company news.

Strong Results Lifted CoStar Group. (CSGP) in Q3

Dec 4, 2025 • Yahoo Finance

Wells Fargo Remains Cautious on CoStar Group (CSGP) but Sees Rival Lawsuits as Neutral to Positive News

Nov 25, 2025 • Yahoo Finance

CoStar in line for millions in state, city incentives as it readies new Richmond office tower

Nov 20, 2025 • Richmond BizSense

Loading insights...

Headcount +10.4% year over year

Referral

9.4%

Social

0.6%

Paid referral

0.6%

LinkedIn followers

Follower count and growth

Total followers

277.8K

12-mo growth

+24.9%

Monthly growth

+2%

Salaries

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CoStar Group insights

Company and marketing-team signals from saved company data and employee profiles. Use this before you apply, interview, or negotiate.

Founded

1987

Headquarters

Arlington, Virginia

Employees

5001-10000

10.4% growth last 12mo

Marketing team

1,368

12% of company

95 saved employee profiles are linked to this company.

Company stability and risk

Shows a quick risk view from growth, funding age, and news.

Main result

Low risk

Seed-stage · Growing 10.4% last 12 months · More mature

Trend

2021-06-28 -> 2025-11-24

Headcount (12 months)

+10.4%

Last funding round

—

Negative news (120 days)

0

Risk score0/7

Website traffic

Shows traffic size, change, and traffic sources.

Monthly website visitors

2.1M

Month over month-18.7%

Quarter over quarter-22.2%

Top sourceDirect (57.8%)

Traffic source mix

Direct

57.8%

Search

31.5%

Referral

Competitors and search

Shows competitors and key search metrics in one view.

Main result

48 competitor sites

Search traffic: 39.1K organic clicks / 0 paid clicks

Organic competitors

0

Paid competitors

1

Keyword change

+1,399

Ad budget per month

$33.4

Average search rank

57.7

Paid competitors1

LinkedIn followers

Shows follower count and growth.

LinkedIn followers

Follower count and growth

Job openings

Shows open jobs, growth, and role changes.

Main result

1 open jobs

Open jobs trend: —

Trend

Marketing team size

Shows saved marketing team size.

1,368

12% of the company • 95 saved marketing people

First hire or larger team

Shows if this looks like one hire or a bigger team.

Looks like larger team

Based on saved marketing team size: 1,368.

Glassdoor ratings

Shows saved Glassdoor ratings.

Glassdoor ratings

Overall rating

3.2 / 5

Work-life balance

2.3 / 5

Culture

2.3 / 5

Diversity & inclusion

3.7 / 5

Recommend to a friend

55%

Positive business outlook

58%

News

Shows saved company news.

Strong Results Lifted CoStar Group. (CSGP) in Q3

Dec 4, 2025 • Yahoo Finance

Wells Fargo Remains Cautious on CoStar Group (CSGP) but Sees Rival Lawsuits as Neutral to Positive News

Nov 25, 2025 • Yahoo Finance

CoStar in line for millions in state, city incentives as it readies new Richmond office tower

Nov 20, 2025 • Richmond BizSense

9.4%

Social

0.6%

Paid referral

0.6%

Total followers

277.8K

12-mo growth

+24.9%

Monthly growth

+2%

2023-08-01 -> 2026-03-01

Open jobs growth

—

Biggest role change

—

Latest open role

Software Engineer