Beliveau, Fradette & Gallant Attorneys at Law is a multi-practice firm that represents clients in Manchester. It helps new entrepreneurs in forming corporations, partnerships, and limited liability companies. The firm also works with established business owners on acquisitions, business disputes, non-compete agreements, asset and stock sales, and employment contracts. It was established as the Raymond A. Cloutier Law Offices in 1965. In addition, it represents clients in the areas of family, health care, real estate, and construction law.

Brennan Lenehan Iacopino & Hickey provides legal guidance and assistance to first-time entrepreneurs, established business owners, and family business operators in Manchester. Its corporate law practice involves dealing with business formation matters, representing clients in mergers and acquisitions, handling business financial affairs, and creating contracts. Michael J. Iacopino, a senior partner in the firm, has three decades of trial experience. He devotes his legal business practice to representing business owners who are subject to regulation, prosecution, and investigation by administrative agencies.

Craig, Deachman & Associates Attorneys at Law offers legal counsel for individuals and businesses in Manchester. Its legal team helps executives and business owners respond to opportunities and disruptions. The attorneys also represent businesses in real estate transactions, covering commercial leases and purchases. John Deachman, the firm's managing partner, is also licensed to practice in Massachusetts. He used to serve on the board of multiple nonprofit organizations, including the Middle Eastern Veterans Memorial Council and the Manchester City Library Foundation.

Drummond Woodsum Attorneys at Law has been serving clients in Manchester since 1965. Its team of attorneys counsels businesses in various legal affairs, including contract drafting and review, planning company policies, and complying with government regulations. The team also represents businesses embroiled in a legal dispute during mediation, arbitration, and litigation. It also assists business owners throughout the business acquisition process. The attorneys negotiate shareholder agreements and contracts for the purchase and sale of a business. The firm has over 100 attorneys.

The Law Offices of Jameson & Cooper serves the needs of small businesses in Manchester. It assists in different stages of the business cycle from creation and growth development to ownership expansion and company sale. The firm represents clients in litigation or defense proceedings, intellectual protection actions, and real estate negotiations. It was established in the late 1950s and is currently headed by principal Herbert Cooper, who is a volunteer mediator for the Norfolk County District Court Pretrial Conciliation Program.

McDonald, Rogers & Lorman, P.L.L.C., based in Concord, serves customers in the Manchester region and nearby areas. It focuses on commercial law, such as intellectual property, contracts and agreements, and start-ups. It also deals with family law issues such as annulment or divorce, property and debt distribution, child support and custody, and order changes. In addition, its team handles estate planning and criminal defense cases.  The firm's co-founding attorney, Kyle McDonald, has worked for the New Hampshire Department of Administrative Services.

Established in 1948, Morrison Mahoney LLP is a general practice firm that caters to clients in Manchester. It represents businesses, executives, and entrepreneurs in various business disputes, from formation to development. Its lawyers are well-versed in negotiating and resolving shareholder and general contract disputes and handling buy-outs and merger issues. They extend their practice to corporate transactions, workers' compensation, personal injury, education, and employment law. The firm also supports various local organizations, including the American Cancer Society and the Make-A-Wish Foundation.