Company lists · Data refreshed September 2026

Top 25 Custom software development startups based in Boston, United States

Name: Custom software development startups based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 90 companies tracked

RevenueBase identified 90 custom software development startups headquartered in Boston, United States as of September 2026 and tracks 1,929 professional contacts across them, including 534 with verified work emails. Across the United States, New York is the largest hub for this category (566 companies); Boston has 90.

This list covers custom software development startups headquartered in Boston, 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 29, 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 29, 2026 86% judged on-target in blind review

90Companies

1,929Contacts tracked

534Verified emails

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The 25 largest custom software development startups based in Boston, United States

Ranked by team size

Top 25 of 90 custom software development startups based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development startups: 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	Tanisha Systems, INC	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	844 contacts →
	Strong evidence “Tanisha Systems, founded in 2002 in Massachusetts-USA, is a leading provider of Custom Application Development and end-to-end IT Services to clients globally.” Source: RevenueBase Database · checked Sep 29, 2026
2	Techneplus	Indirect evidence	Boston, United StatesHQ checked Sep 29, 2026	501-1,000	147 contacts →
	Indirect evidence “At TechnePlus, we believe technology is most powerful when it brings people together and solves real-world challenges.” Source: RevenueBase Database · checked Sep 29, 2026
3	Completesoft	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	61 contacts →
	Strong evidence “CompleteSoft is a full-cycle international software development company founded in 2006.” Source: RevenueBase Database · checked Sep 29, 2026
4	Mbicycle	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	60 contacts →
	Strong evidence “The people of Mbicycle are software development enthusiasts who deliver robust ready-made mobile and web solutions.” Source: RevenueBase Database · checked Sep 29, 2026
5	Dycoders	Strong evidence	Boston, CA, United StatesHQ checked Sep 29, 2026	51-200	50 contacts →
	Strong evidence “DyCoders is a US-based software and product development company delivering scalable, high-impact digital solutions for businesses worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
6	Aras Digital Products	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	37 contacts →
	Partial evidence “Aras™ Digital Products is a creative hub of innovative experts in software, data engineering, and AI solutions across industries.” Source: RevenueBase Database · checked Sep 29, 2026
7	Zonopact, INC	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	26 contacts →
	Strong evidence “Zonopact is a software development firm specializing in developing high-performance and innovative business solutions.” Source: RevenueBase Database · checked Sep 29, 2026
8	Zagaran, INC	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	23 contacts →
	Strong evidence “We're software development experts who solve tough problems.” Source: RevenueBase Database · checked Sep 29, 2026
9	QUOIN	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	17 contacts →
	Partial evidence “We Simply Build Great Software Quoin is a boutique technology firm with a proven track record of building and improving systems.” Source: RevenueBase Database · checked Sep 29, 2026
10	Echobind	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	14 contacts →
	Strong evidence “Echobind is a full-service digital agency dedicated to building custom software that transforms businesses.” Source: RevenueBase Database · checked Sep 29, 2026
11	Raina Solutions	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	14 contacts →
	Partial evidence “Raina works with clients to identify business and technology needs and respond with customized solutions that significantly leverage investment and produces desired growth.” Source: RevenueBase Database · checked Sep 29, 2026
12	Epicdevs	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	13 contacts →
	Partial evidence “We specialize in crafting bespoke web development solutions that stand out.” Source: RevenueBase Database · checked Sep 29, 2026
13	NL Softworks	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1-10	11 contacts →
	Indirect evidence “NL Softworks was founded in 2015 by Edward Novak while pursuing his undergraduate studies.” Source: RevenueBase Database · checked Sep 29, 2026
14	Boston Associate Software Systems	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “Boston Associate is an IT staffing and solutions firm founded in 2017.” Source: RevenueBase Database · checked Sep 29, 2026
15	S9 Consulting LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “We are a technology consulting firm located in Boston, MA, with more than 25 years of combined partner experience in web development, business system implementation, and…” Source: RevenueBase Database · checked Sep 29, 2026
16	Redefine Solutions	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	9 contacts →
	Strong evidence “We offer top-notch custom software solutions crafted by our experienced team.” Source: RevenueBase Database · checked Sep 29, 2026
17	Tinktanc	Indirect evidence	Boston, United StatesHQ checked Sep 29, 2026	11-50	8 contacts →
	Indirect evidence “At Tinktanc, we are dedicated to empowering businesses with innovative technology solutions and strategic marketing services.” Source: RevenueBase Database · checked Sep 29, 2026
18	Cloud Construct	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	7 contacts →
	Partial evidence “Cloud Construct is a Boston based web design and development firm that delivers digital transformation solutions that solve business problems.” Source: RevenueBase Database · checked Sep 29, 2026
19	Zoolarity Labs	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	6 contacts →
	Strong evidence “We are a leading software product development services company, partnering with both start-ups and established players globally in their innovation journey.” Source: RevenueBase Database · checked Sep 29, 2026
20	Anythink Solutions, INC	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Strong evidence “Anythink Solutions is a premier consulting company that specializes in designing and developing custom software solutions.” Source: RevenueBase Database · checked Sep 29, 2026
21	Aclarify	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “Aclarify specializes in launching scalable MVPs and web applications for startups and small businesses.” Source: RevenueBase Database · checked Sep 29, 2026
22	ENTOS	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “Your Success is Our Success At Entos, we believe in fostering long-term relationships with our clients.” Source: RevenueBase Database · checked Sep 29, 2026
23	Treehouse Technology Group	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	5 contacts →
	Strong evidence “Treehouse Technology Group (TTG) is a technology strategy and custom solutions development firm.” Source: RevenueBase Database · checked Sep 29, 2026
24	Paramount Ventures	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1-10	4 contacts →
	Strong evidence “Paramount Ventures is a comprehensive software development firm based in Boston, offering specialized services in custom software and product development.” Source: RevenueBase Database · checked Sep 29, 2026
25	Code Delirium	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	4 contacts →
	Strong evidence “Custom software solutions.” Source: RevenueBase Database · checked Sep 29, 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: custom software development startups. 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 custom software development startups.
Partial evidence: Its own public description names part of custom software development startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development startups. 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 25 of 90 custom software development startups based in Boston, United States

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Custom software development startups based in Boston, United States at a glance

As of Sep 29, 2026

27.7%Verified-email coverage

21.4Average contacts per company

11-50Median size (employees)

Sep 29, 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 for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 90 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 custom software development startups, 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 Boston, United States whose own description of what they do matches “custom software development startups”. 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 custom software development startups), 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 custom software development startups, and records with no verified work email. Companies headquartered outside Boston 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, 534 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 29, 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.

Custom software development startups 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 custom software development startups, 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 custom software development startups are there based in Boston, United States?

RevenueBase identified 90 custom software development startups headquartered in Boston, 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?

Tanisha Systems, INC, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most custom software development startups?

New York leads the United States with 566 headquartered companies, followed by Austin (351) and Houston (252). Boston has 90.

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 534 verified decision-maker contacts tracked across these 90 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 29, 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.