Data Services In Bethesda MD At NW Database Services

Data Cleaning, Data Cleansing, Data Scrubbing, Deduplication, Data Transformation, NCOA, Mail PreSorts, Email Verification, Email Append, & Phone Append Services in Bethesda Maryland

Get The Best Database Services In Bethesda Maryland

We provide data services to businesses and organizations in Bethesda MD and all Maryland cities. With over 3 decades of experience in the database business, you won’t find a company that can solve your specific database needs with higher quality service or better prices than Northwest Database Services. No matter what your specific need is, our team will find a data service solution to suit your situation.


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We Are A Full Service Data Services That Can Help You Run Your Business

Northwest Database Services is a full-spectrum data service that has been performing data migration, data scrubbing, data cleaning, and de-duping data services for databases and mailing lists, for over 34 years. NW Database Services provides data services to all businesses, organizations, and agencies in Bethesda MD and surrounding communities.

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What We Do

Database Services

When you need your data to speak to you regarding your business’s trends, buying patterns or just whether or not your customers are still living.

Data Transformation

We provide data transformation services for Extract, Transform and Load (ETL) operations typically used in data migration or restoration projects.

De-duplication Service

Duplication of data plagues every database and mailing list. Duplication is inevitable, constantly keeps growing and erodes the quality of your data.

Direct Mail - Presorts

It’s true the United States Postal Service throws away approximately thirty five percent of all bulk mail every year! Why so much? Think: “Mailing list cleanup.

Email-Phone Append

With access to more than 500 million email addresses, Northwest Database Services uses one of the most comprehensive and unique data sets in the industry.


Over 40 million Americans change their address annually, which makes us do the work to maintain a high-quality mailing list while you focus on your business.

We Are Here To Help!

13 + 15 =


Sandersville, GA 31082


gch [@]
To use email, remove the brackets


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Information About Data Cleaning And Data Services

What is a Relational Database Base?

Although relational databases may sound daunting, they are essentially a way to store information. Databases are essential in data analytics, software engineering and data engineering. Although this may look different in practice and not always possible, relational databases are a special kind of database that can store and retrieve data from applications.

Relational databases are extremely popular because they can be used for many industries. Even if you’ve never had an opportunity to use them, it is possible that you are familiar with industry favorites like SQL Server, MySQL, and PostgreSQL.

What is a relational database base? Excel spreadsheets are something you probably know. They function in the same way. A database is a collection of the same columns and rows. They are still based on the notion of a table, but they have some features that enable data retrieval and analysis.

Databases often contain multiple tables. If there are overlapping columns, or in industry jargon, a primary key, they can be linked together. This interlinking architecture can be used by companies to make sense of all the data generated by business lines.

The Relational Database Model

Let’s start by looking at the reasons the relational database was built. E. F. Codd was an IBM employee who created the relational database back in the 1970s. He created a paper that outlined the rules for data storage. Each row has its own primary key. If the columns correspond to the unique key, tables are related. When the primary key is used in another table, the foreign key occurs.

Relational databases specify the data types of each column as well as the primary keys and column names. These attributes are known as the relational schema. They structure how new entries are added to a database.

This might seem too abstract. It might seem too abstract if you are interested in analytics. Let’s take a look at how businesses use analytics.

Let’s suppose you own a shoe store that sells online. They may store customer data in multiple databases, depending on what data is stored when a customer orders footwear online. Columns in the Customer table might include Customer ID, Mailing Address, Purchase ID, and Purchased ItemID. The Marketing table could contain Customer ID, Transaction Amount and Purchase ID.

This database simplifies Customer ID to show the primary and foreign keys. Now we can see how marketing affects sales generation.

Northwest Database Services has 34+ years experience with all types of data services, including mail presorts, NCOA, and data deduplication. If your database systems are not returning poor data, it is definitely time for you to consult with a data services specialist. We have experience with large and small data sets. Often, data requires extensive manipulation to remove corrupt data and restore the database to proper functionality. Call us at (360)841-8168 for a consultation and get the process of data cleaning started as soon as possible.

NW Database Services
404 Insel Rd
Woodland WA 98674

City of Bethesda MD Information

Willard Avenue Neighborhood Park in Bethesda MD

Bethesda, a census-designated, unincorporated place in southern Montgomery County Maryland, United States, is located. It is located northwest of Washington, D. C. In Bethesda are the main campus of the National Institutes of Health and Walter Reed National Military Medical Center. There are also a variety of corporate headquarters and government headquarters.


Bethesda is in an area that was once inhabited by the Nacotchtank and Piscataway tribes during European colonization. Henry Fleet, a fur trader, was the first European to visit this area. He reached it by sailing upriver from the Potomac River. From 1623 to 1627, he stayed with the Piscataway Tribe as either a guest or a prisoner (historical accounts vary). Fleet was eventually able to secure funding for another expedition. He later received proprietary rights to 2,000 acres in the colony’s nascent colony. He also became a member the Maryland colonial legislature. In 1694, Maryland’s division of Rangers was created to protect the frontier from raids by the Senecas as well as the Susquehannock.


According to the 2000 census, the CDP had 55,277 residents, 23,659 households and 14,455 families. The population density was 4,205.8 people per square mile (1.623.9/km2). At an average density 1,854.1/square mile (715.9/km2), there were 24,368 housing units. The CDP’s racial composition was 85.86% white, 2.67% Black, African American, 0.17% Native American and 7.92% Asian. It had an average density of 1,854.1 per square mile (715.9/km2). 5.43 percent of the population was Hispanic or Latino.


Washington Metro’s Red Line serves two main locations in Bethesda. They are the downtown area near the Bethesda Station and the area close to the National Institutes of Health, Walter Reed Medical Center and the Medical Center station. Maryland Transit Administration’s Purple Line will connect Bethesda with Silver Spring, Maryland University, College Park, New Carrollton, and other destinations. The Purple Line will enable riders to travel between the Red, Green and Orange lines of Washington Metro’s transportation system as well as MARC and Amtrak trains without having to travel into central Washington.

Top Businesses

Some notable companies based in Bethesda are:
AREVA U.S. headquarters
Calvert Investments
Cambridge Information Group
Clark Construction
Coventry Health Care
Cystic Fibrosis Foundation


Bethesda MD Map