Data Services In Annapolis 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 Annapolis Maryland

Get The Best Database Services In Annapolis Maryland

We provide data services to businesses and organizations in Annapolis 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.


More Cities and States Where We Offer Data Cleaning Services

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 Annapolis MD and surrounding communities.

Get Started


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!

1 + 15 =


Woodland, WA 98674


gch [@]
To use email, remove the brackets


Call Us

(360) 841-8168

Information About Data Cleaning And Data Services

Data Cleaning Is Important for Big Data Accuracy.

Data cleaning has been an integral part of data management and data analysis throughout history. This trend continues to grow rapidly. Data cleansing or data cleaning in Big Data is difficult because of the growing volume and velocity of data across multiple applications.

Because real-life data is often messy, it can prove costly. This is why data quality management is so important for businesses. Data cleansing is also known as data appending or data scrubbing. It involves correcting or removing incorrect data. Data cleansing is an important step. Bad data can cause poor business decisions. Bad Big Data has caused huge financial losses for some businesses.

What are the Different Types of Big Data?

Because big data comes from many sources, and can take many formats, it can be quite diverse. The data structure is important as it will determine how data will be stored, processed, analyzed, and retrieved. This is crucial for making raw data useful.

There are three types big data:

  • Structured data
  • Unstructured data
  • Semi-structured data

Let’s take a closer glance at each of these big data types.

Structured Data

Structured data refers to data that has been stored within databases. These data can be stored and processed in a predetermined way. These data are the easiest type of big information because they don’t require any preparation. You can get structured data from either machines or humans. For example, customers signing up for new accounts will be given their name, address and age. You can think of structured data as the rows and columns you’d see in an Excel spreadsheet. Structured data only represents 20% of all available big data.

Unstructured Data

Structured data is, as its name suggests, the opposite of structured data. It is completely unorganized and doesn’t have a defined format. If it isn’t contextualized, unstructured data could be described as data without meaning. Twitter tweets, for instance, are just words. It doesn’t have any meaning or sentiment (before analysis). This holds true for an image you share or a call you make. These examples of unstructured data need to be placed in a real-world context for them to make sense. Because it uses complex algorithms such as those used in machine learning, AI, and natural language processing, unstructured data is more labor-intensive. Around 80% of global big-data is unstructured.

Semi-Structured Data

Semi-structured information refers to unstructured data with some organizational properties. This makes it more straightforward to process than unstructured information. Semi-structured data can have metadata attached, which is data that describes or gives details about another piece. It may also attach a timestamp to your smartphone and log your device ID. Even though the data is not structured, these additional details provide context for the image. Similar to the previous, if you email someone, even though it isn’t structured data, there are still “clues” such as the IP address or email address that it came from.

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 Annapolis MD Information

Annapolis MD

Annapolis, the capital of Maryland, is also the county seat and only incorporated municipality in Anne Arundel County. Annapolis is located on the Chesapeake Bay, at the mouth the Severn River, approximately 25 miles (40km) south of Baltimore, and 30 miles (50km) east of Washington, D. C. Annapolis is part of the Baltimore-Washington Metropolitan Area. Its population was 40,812, an increase in 6.3% from 2010.


The Confederation Congress was formerly called the Second Continental Congress. It served as temporary national capital from 1783-1784. General George Washington, who was then commander of the Continental Army, appeared before the newly constructed Maryland State House. The Congress ratified the Treaty of Paris of 1783 a month later. This ended the American Revolutionary War and gave the United States its independence. This was the location of the 1786 Annapolis Convention. It called on the states to send representatives to the Constitutional Convention in Philadelphia the next year. The Annapolis Peace Conference was held in 2007, more than 220 years after its original date.


Annapolis is located in the humid subtropical climate zone. It experiences hot, humid summers and cool winters. There is also plenty of precipitation all year. The area’s low elevation and close proximity to Chesapeake Bay make it more temperate in spring and summertime, and less cold than other locations farther inland like Washington, D. C.


There were 40,812 residents as of the 2020 census. 49.4% of the population were non-Hispanic white, 21.7% African American and 0.7% Native American. 2.5% Asian, 14.5% other races and 8.1% came from more than one race. 22.9% of the population was Hispanic/Latino of any race.


Annapolis is not served by any major highways. Interstate 595/U. is just outside the city boundaries. S. Route 50/U. S. Route 50/U. Interstate 97 connects with I-595/US 50/US 301 a few minutes west of Annapolis. This provides the best link to Baltimore. Maryland Route 2 passes outside of the city limits. It is the best link to Southern Maryland and also provides an alternative route to Baltimore.


Annapolis MD Map