Company lists · Data refreshed September 2026

Top 10 Software contractors based in Waltham, United States

Name: Software contractors based in Waltham, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 26 companies tracked

RevenueBase identified 26 software contractors headquartered in Waltham, United States as of September 2026 and tracks 1,135 professional contacts across them, including 513 with verified work emails. New York is the largest hub.

This list covers software contractors headquartered in Waltham, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

26Companies

1,135Contacts tracked

513Verified emails

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The 10 largest software contractors based in Waltham, United States

Ranked by team size

Top 10 of 26 software contractors based in Waltham, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to software contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Softworld, A Kelly Company	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	1,001-5,000	389 contacts →
	“Softworld has developed expertise across five distinct staffing and consulting practices over the past 25 years.” Source: company website · checked Sep 6, 2026
2	AMC Bridge, INC	Partial evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	501-1,000	367 contacts →
	“AMC Bridge is a trusted software technology partner for engineering, manufacturing, and construction enterprises, whether they are actively pursuing AI-driven digital…” Source: company website · checked Sep 6, 2026
3	Redbend	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	201-500	34 contacts →
	“Redbend became part of HARMAN Connected Services in 2015.” Source: company website · checked Sep 6, 2026
4	Practical Computer Applications	Partial evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	11-50	17 contacts →
	“We design and build custom business software that doesn’t just “work”, it works for you.” Source: company website · checked Sep 6, 2026
5	CPU Sales & Service, LLC	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	51-200	6 contacts →
	“CPU Sales & Service, Inc.” Source: company website · checked Sep 6, 2026
6	Deep Core Data, LLC	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	11-50	6 contacts →
	“We have been using technology to improve the lives of business leaders, employees, and consumers.” Source: company website · checked Sep 6, 2026
7	AGM Consulting LLC	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	11-50	4 contacts →
	“AGM Networking is an IT services provider with a specific focus on delivering robust solutions using Microsoft, Cisco, VMware and other technologies.” Source: company website · checked Sep 6, 2026
8	Boston Managed IT	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	1-10	3 contacts →
	“BMIT has built its reputation on a simple premise: To help people and businesses succeed.” Source: company website · checked Sep 6, 2026
9	RDAIT	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	1-10	2 contacts →
	“RDA offers a full service IT consulting and management service for the Boston Metropolitan area.” Source: company website · checked Sep 6, 2026
10	D20 Technical Services LLC	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 6, 2026	1-10	1 contacts →
	“D20 Technical Services is a technology consultancy specializing in the cloud.” Source: company website · checked Sep 6, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: software contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names software contractors.
Partial evidence: Its own public description names part of software contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 10 of 26 software contractors based in Waltham, United States

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Software contractors based in Waltham, United States at a glance

As of Sep 6, 2026

45.2%Verified-email coverage

43.7Average contacts per company

11-50Median size (employees)

5857.7%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Waltham, over 26 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among software contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Waltham, United States whose own description of what they do matches “software contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names software contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among software contractors, and records with no verified work email. Companies headquartered outside Waltham are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 513 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Software contractors by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names software contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many software contractors are there based in Waltham, United States?

RevenueBase identified 26 software contractors headquartered in Waltham, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Softworld, A Kelly Company, headquartered in Waltham, tops this list with the largest team on record.

Which city has the most software contractors?

New York leads with 1523 headquartered companies, followed by Houston (852) and Austin (846).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 513 verified decision-maker contacts tracked across these 26 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.