Data Services In Boston MA At NW Database Services

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

Get The Best Database Services In Boston Massachusetts

We provide data services to businesses and organizations in Boston MA and all Massachusetts 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 Boston MA 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!

10 + 9 =


Woodland, WA 98674


gch [@]
To use email, remove the brackets


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(360) 841-8168

Information About Data Cleaning And Data Services

Data cleaning services in Boston MA from NW Database ServicesInformation About Data Cleaning

What Is Data Cleaning?

Data cleansing, also known as data cleaning, is the process of identifying and correcting or removing errors and inconsistencies from a dataset. The goal of data cleansing is to improve the accuracy, completeness, and overall quality of the data. This process is important because poor-quality data can lead to incorrect or misleading results in business intelligence and analytics systems.

Data cleansing can involve various techniques, such as identifying and correcting typos, filling in missing values, removing duplicates, standardizing data formats, and resolving inconsistencies. The process may also involve removing irrelevant or outdated data.

Data cleansing is usually performed as a pre-processing step before data analysis, and is an ongoing process as new data is collected and added to the dataset. Data cleansing is a vital part of any data processing and analytics work. It is a process of detecting and correcting (or removing) corrupt or inaccurate records from a dataset. Data cleansing involves checking the accuracy of the data and ensuring that it is consistent across all sources. This involves identifying and correcting errors, eliminating duplicates, correcting inconsistencies, filling in missing data, and standardizing data formats. Data cleansing is important because it helps ensure that data is accurate and reliable and can be used to generate valid insights.

What Is the Difference Between Data Validation and Data Cleaning?

Data validation and data cleaning are two different processes in data management.

Data validation is the process of checking the data to ensure that it meets certain pre-defined criteria or rules. This process is performed to ensure the accuracy, completeness, and consistency of the data. The main purpose of data validation is to identify and correct errors in the data before it is used for analysis or storage.

Data cleaning, on the other hand, is the process of identifying and correcting or removing errors and inconsistencies in the data. This process is performed to improve the quality of the data and to make it ready for analysis or storage. Unlike data validation, which checks data against specific rules, data cleaning may involve more subjective judgment and may involve transforming or removing data

Why Should Data Sets Be Compatible?

Data sets should be compatible to ensure that data can be accurately exchanged and analyzed together. Compatible data sets are essential for effective data analysis and decision-making, as they allow for data to be combined and compared, improving accuracy and reliability. Compatible data sets also enable data sharing between different organizations, allowing for more efficient decisions and improved outcomes. In addition, compatible data sets can help to reduce errors and improve the accuracy of data analysis, as they allow for better data integration and data quality checks. Furthermore, compatible data sets help to reduce the time and effort required for data analysis, as the data can be readily accessed and understood. Overall, compatibility between data sets is essential for obtaining accurate and reliable results. This can only be achieved if the data is clean; which is an important consideration for working with data sets.

What Tasks or Actions Does Data Cleaning Include?

Data cleaning is a process that involves several tasks or actions to improve the quality and accuracy of the data. Some common tasks or actions involved in data cleaning include:

  1. Handling missing values: Dealing with missing or incomplete data by either removing records with missing values or imputing missing values with appropriate estimates.
  2. Removing duplicates: Identifying and removing duplicate records in the data.
  3. Correcting errors: Identifying and correcting errors in the data, such as typos, transpositions, and other inaccuracies.
  4. Handling outliers: Detecting and handling outliers in the data, either by removing them or transforming them to more appropriate values.
  5. Formatting data: Formatting the data into a consistent format, such as converting date fields to a standard date format or converting text fields to a standard case.
  6. Standardizing data: Standardizing the data by transforming it into a common scale, such as converting variables to a standard unit of measurement.
  7. Removing irrelevant data: Removing data that is not relevant to the analysis or storage of the data.

Why Is Data Cleaning Important For Data Analysis?

Data cleaning is an important step in the data analysis process because it helps ensure that the data is accurate, consistent, and reliable. This is crucial for obtaining meaningful and accurate results from the data analysis. Some of the reasons why data cleaning is important for data analysis include:

  1. Improving the accuracy of the data: Data cleaning helps to identify and correct errors in the data, which can lead to more accurate results from the analysis.
  2. Increasing the reliability of the data: Reliable data is essential for making informed decisions. By cleaning the data, you can ensure that the data is consistent and free from errors, which increases its reliability.
  3. Reducing the risk of bias: Data cleaning helps to remove outliers and other anomalies in the data, which can reduce the risk of bias in the analysis.
  4. Enhancing the quality of the data: Data cleaning helps to improve the overall quality of the data by removing duplicates, correcting errors, and transforming the data into a consistent format.
  5. Saving time and resources: Cleaning the data before analysis can save time and resources by reducing the need for manual intervention during the analysis process.

What Mistakes Can Appear In Data Analysis If Data Is Not Clean?

If data is not cleaned properly before analysis, it can result in several mistakes that can compromise the accuracy and validity of the results. Some common mistakes that can appear in data analysis if the data is not clean include:

  1. Incorrect results: Dirty data can lead to incorrect results in the analysis, such as incorrect mean, median, or standard deviation values.
  2. Biased results: Dirty data can introduce bias into the analysis, which can skew the results in a particular direction.
  3. Inefficient analysis: Dirty data can result in longer processing times and increased computational resources, making the analysis more time-consuming and inefficient.
  4. Inaccurate predictions: Dirty data can lead to inaccurate predictions in machine learning models, as the models may be trained on incorrect or inconsistent data.
  5. Misleading insights: Dirty data can result in misleading insights, as the results of the analysis may not reflect the true relationships in the data.

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 Boston MA Information

Boston MA

Officially known as the City of Boston (or simply Boston), Boston is the capital of Massachusetts, the most populous city in the Commonwealth of Massachusetts, and the cultural, financial, and economic center of the New England region of America. It is the nation’s 24th most populous city. It covers an area of 48.4 square miles (125 km2), and has a population estimated at 675,647 in 2020. The city serves as an economic and cultural center of Greater Boston, a larger metropolitan statistical area (MSA), which is home to approximately 4.8 million people according to the 2016 census. It ranks as the tenth largest MSA in the United States. The broader combined statistical area, corresponding to the commuter area, and including Providence (Rhode Island), is home to 8.2 million people. It is the sixth most populous US state.


Boston is one the oldest American municipalities. It was founded on Shawmut Peninsula by Puritan settlers who came from England in 1630. It was home to many important events of the American Revolution, including the Boston Massacre and the Battle of Bunker hill. The city was a major port, manufacturing center, and education hub until the American independence. Through land reclamation and municipal annexes, the city has grown beyond its original peninsula. The city’s rich history draws many tourists. Faneuil Hall alone attracts more than 20,000,000 visitors annually. Boston is home to many firsts, including the first American public park, Boston Common (1634), first public school or state school (Boston Latin School 1635), first subway system (Tremont street subway, 1897) and first large public library (Boston Public Library (1848).


According to the Koppen climate classification Boston can be described as having either a humid subtropical climate below the -3degC (26.6degF) or a humid continental climate beneath the 0degC isotherm. The city can be described as being in the transitional zone between these two climates. Summers are warm and humid with periods of heavy snow, while winters can be cold and stormy. Spring and autumn are typically cool to mild with conditions that vary depending on the direction of wind and whereabouts of the jet stream. The Atlantic Ocean’s influence is minimized by the presence of offshore wind patterns. Winter areas close to the coast may see more snow than rain, as warm air from the Atlantic is sometimes drawn away. The city is located between USDA plant hardiness zones 6b (mostly the city) and 7a, which are Downtown, South Boston and East Boston neighborhoods.


The city’s population was distributed with 21.9% of the population being under age 19, 14.3% among those aged 20-24, 33.2% among those aged 25-44, 20.4% between 45 and 64, 10.1% for those 65 and older. The median age was 30.8. There were 92.0 males for every 100 females. There were 89.9 men for every 100 females over the age of 18. There were 252,699 households. 20.4% of these had children younger than 18, 25.5% had married couples, 16.3% had a female householder without a husband, and 54.0% were not families. 39.1% of all households consisted of individuals and 9.0% were composed of someone 65 years or older. The average family size was 3.08 and the average household size was 2.26. According to an estimation, Boston has one the largest cities in the United States.


Downtown Boston’s streets developed organically. They do not form a planned grid like those in the South End, East Boston, South Boston and South Boston. Boston is the eastern terminus for I-90 in Massachusetts, which runs along the Massachusetts Turnpike. The elevated section of the Central Artery that carried the majority of through traffic in Boston was removed during the Big Dig. It was substantially finished in 2006. Both the former and the current Central Artery are connected to I-93, which is the main north-south artery of the city. The US 1 connects to Boston’s North Shore, as well as the areas south of Boston. US 3 connects to Boston’s northwestern suburbs. Massachusetts Route 3 connects to Cape Cod and the South Shore. Massachusetts Route 2 connects with the western suburbs. Massachusetts Route 128, which is part of the beltway that surrounds the city, has been mostly subsumed and replaced by I-95 or I-93.

Top Businesses

According to the 2018 Global Financial Centers Index (GFCI), Boston was ranked the 13th most competitive financial center in the world, and the 2nd most competitive in the United States. Fidelity Investments, a Boston-based company, helped popularize mutual funds in the 1980s. It has since become one of the most important financial centers in America. Santander Bank’s headquarters is located in Boston, as well as a hub for venture capital companies. The city is home to State Street Corporation, which provides asset management and custody services. Boston is a publishing and printing center. Bedford-St. Martin’s Press, Beacon Press, and Houghton Mifflin Harcourt are all based in the city. Several hundred people are employed by Pearson PLC publishing units in Boston. Three major convention centers are located in Boston: the Hynes Convention Center, the Back Bay Seaport World Trade Center and the Boston Convention and Exhibition Center. General Electric Corporation announced its decision in January 2016 to relocate its global headquarters from Fairfield, Connecticut to the Seaport District, Boston. This was due to Boston’s prominence in higher education. Many major footwear and athletic companies have their headquarters in Boston, including New Balance, Converse, and Reebok. Rockport, Wolverine World Wide, Inc. headquarters, or regional offices can be found just outside of the city.

Technology: Boston is known for its thriving technology scene, with many innovative startups and established tech companies located in the area. One of the most important technology businesses in Boston is Akamai Technologies, a leading content delivery network provider. Akamai provides cloud services to help businesses deliver their content and applications online. Another important technology business in Boston is HubSpot, a leading inbound marketing and sales platform that helps businesses attract, engage, and delight customers.

Finance: Boston is also a hub for finance and investment, with many leading financial institutions and investment firms located in the area. One of the most important financial businesses in Boston is Fidelity Investments, a leading investment management firm that offers a wide range of investment products and services. Another important financial business in Boston is State Street Corporation, a leading financial services company that provides investment servicing, investment management, and investment research and trading.

Healthcare: Boston is a leader in the healthcare industry, with many of the world’s leading healthcare companies and institutions located in the area. One of the most important healthcare businesses in Boston is Partners HealthCare, a non-profit healthcare system that includes a network of leading hospitals and medical centers in the area. Another important healthcare business in Boston is Vertex Pharmaceuticals, a leading biotechnology company that develops and commercializes treatments for genetic diseases.

Education: Boston is also known for its strong education sector, with many of the world’s leading universities and colleges located in the area. One of the most important educational institutions in Boston is Harvard University, a world-renowned research university and a leader in higher education. Another important educational institution in Boston is Massachusetts Institute of Technology (MIT), a leading research university and a hub for innovation and technology.

Retail: Boston is also home to a thriving retail sector, with many leading retail businesses located in the area. One of the most important retail businesses in Boston is Primark, a leading clothing and fashion retailer that offers stylish and affordable clothing for women, men, and children. Another important retail business in Boston is CVS Health, a leading retail pharmacy that offers a wide range of healthcare products and services.

Boston MA Map